3/12/2017
I have had 4 of 8 drives go bad in the last year and half. Oldest drive is 2 years old. Model numbers for all the drives are WD30EFRX-68EUZN0. I am waiting on an RMA to come back, and another went bad tonight. Lucky I have extra drives and am replacing tonight with another new WD Red NAS 3TB drive i had for just this purpose.
I have decided to not get anymore of these drives, other than the RMA I am waiting on now, and the RMA I will do after I replace the current bad drive. I have ordered a single HGST Desktsar NAS 3TB drive to look at. If this will fit my needs I will replace all drives in my NAS with these.
I want to look at the heat, noise, and see if i can get head parking off on the HGST drives. I will also measure performance, but I am sure the 7200 HGST will be faster then the 5400 WD Red.
Just an FYI to everyone. Be careful with these WD Red NAS 3TB drives.
UPDATE 3/13/2017
So i got the drive out of the NAS. Home built on Centos 7.3, kernel 4.10, btrfs-progs 4.9. Took a bit to get the drive removed from the array (wait for data to be moved across the other 7 drives) and then add the replacement back in (wait for data to be balanced back across all 8 drives again).
I then took the "bad drive" and put it in my Windows workstation. I ran the WD Data Lifeguard extended test and then ran the extended test from Aomei Partition Assistant Pro. Both of these test show I have no bad sectors. The drive seems to be good as new. To make long story short I think i have a bad fan cable from my SAS/SATA controller to the drives. I have two ports on controller that controls 4 SATA drives each. I reseated HBA card and cables, and power connectors on the drives, and ran some test and scrubs. all seems good with new drive. I then put the side panels back on the case and place it back in its home. And within an hour i start getting more errors on the same device id, only with the brand new drive on that id. So i pull the server back out, remove side panels, and reboot. Over 24 hours later I don't have another error. It maybe that the side panels on the case are moving the cables enough for the bad cable to cause the errors. So i have two new fan cables coming and should have them installed tomorrow night. I still have the new HGST drive coming because I really want to check this out. If they are not to noisy and run to hot, I may just replace them all anyway. I better see some latency and IO improvements before that happens. At $150.00 per drive x8..... Well its not cheap to me.
Sunday, March 12, 2017
Friday, March 3, 2017
BTRFS Drive errors from 2017-02-26
BTRFS Drive errors from 2017-02-26
Was not getting failed scrubs but seeing some errors.
This is 8x 3TB WD Red drives in raid10 on a Supermicro AOC-SAS2LP-MV8 Add-on Card, 8-Channel SAS/SATA Adapter with 600MB/s per Channel in a PCIE x16 slot running at x8 on a Supermicro ATX DDR4 LGA 1151 C7Z170-OCE-O Motherboard with 64GB DDR4 RAM (4x 16GB sticks).
FYI Everything was done online unless otherwise stated.
What file system looks like in btrfs.
[root@nas ~]# btrfs fi show
Label: 'myraid' uuid: 1ec4f641-74a8-466e-89cc-e687672aaaea
Total devices 8 FS bytes used 1.16TiB
devid 1 size 2.73TiB used 301.53GiB path /dev/sdb
devid 2 size 2.73TiB used 301.53GiB path /dev/sdc
devid 3 size 2.73TiB used 301.53GiB path /dev/sdd
devid 4 size 2.73TiB used 301.53GiB path /dev/sde
devid 6 size 2.73TiB used 301.53GiB path /dev/sdg
devid 7 size 2.73TiB used 301.53GiB path /dev/sdh
devid 8 size 2.73TiB used 301.53GiB path /dev/sdi
devid 9 size 2.73TiB used 301.53GiB path /dev/sdf
Take a look at device stats.
[root@nas ~]# /usr/local/bin/btrfs device stats /myraid/
[/dev/sdb].write_io_errs 0
[/dev/sdb].read_io_errs 0
[/dev/sdb].flush_io_errs 0
[/dev/sdb].corruption_errs 0
[/dev/sdb].generation_errs 0
[/dev/sdc].write_io_errs 0
[/dev/sdc].read_io_errs 0
[/dev/sdc].flush_io_errs 0
[/dev/sdc].corruption_errs 0
[/dev/sdc].generation_errs 0
[/dev/sdd].write_io_errs 0
[/dev/sdd].read_io_errs 0
[/dev/sdd].flush_io_errs 0
[/dev/sdd].corruption_errs 0
[/dev/sdd].generation_errs 0
[/dev/sde].write_io_errs 0
[/dev/sde].read_io_errs 44
[/dev/sde].flush_io_errs 0
[/dev/sde].corruption_errs 0
[/dev/sde].generation_errs 0
[/dev/sdg].write_io_errs 0
[/dev/sdg].read_io_errs 0
[/dev/sdg].flush_io_errs 0
[/dev/sdg].corruption_errs 0
[/dev/sdg].generation_errs 0
[/dev/sdh].write_io_errs 0
[/dev/sdh].read_io_errs 0
[/dev/sdh].flush_io_errs 0
[/dev/sdh].corruption_errs 0
[/dev/sdh].generation_errs 0
[/dev/sdi].write_io_errs 0
[/dev/sdi].read_io_errs 0
[/dev/sdi].flush_io_errs 0
[/dev/sdi].corruption_errs 0
[/dev/sdi].generation_errs 0
[/dev/sdf].write_io_errs 0
[/dev/sdf].read_io_errs 0
[/dev/sdf].flush_io_errs 0
[/dev/sdf].corruption_errs 0
[/dev/sdf].generation_errs 0
Run extended smartcl test.
[root@nas ~]# smartctl -t long /dev/sdb
[root@nas ~]# smartctl -t long /dev/sdc
[root@nas ~]# smartctl -t long /dev/sdd
[root@nas ~]# smartctl -t long /dev/sde
[root@nas ~]# smartctl -t long /dev/sdf
[root@nas ~]# smartctl -t long /dev/sdg
[root@nas ~]# smartctl -t long /dev/sdh
[root@nas ~]# smartctl -t long /dev/sdi
I waited an hour then reviewed the results.
[root@nas ~]# smartctl -l selftest /dev/sdb
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-4.7.0-1.el7.elrepo.x86_64] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Extended offline Completed without error 00% 12660 -
# 2 Extended offline Completed without error 00% 8916 -
# 3 Short offline Completed without error 00% 6097 -
# 4 Extended offline Completed without error 00% 4288 -
# 5 Short offline Completed without error 00% 4245 -
# 6 Short offline Completed without error 00% 4242 -
# 7 Short offline Interrupted (host reset) 50% 4241 -
# 8 Short offline Completed without error 00% 4172 -
# 9 Short offline Completed without error 00% 4109 -
[root@nas ~]# smartctl -l selftest /dev/sdc
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-4.7.0-1.el7.elrepo.x86_64] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Extended offline Completed without error 00% 12660 -
# 2 Extended offline Completed without error 00% 8916 -
# 3 Short offline Completed without error 00% 6096 -
# 4 Extended offline Completed without error 00% 4288 -
# 5 Short offline Completed without error 00% 4109 -
[root@nas ~]# smartctl -l selftest /dev/sdd
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-4.7.0-1.el7.elrepo.x86_64] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Extended offline Completed without error 00% 13003 -
# 2 Extended offline Completed without error 00% 9260 -
# 3 Short offline Completed without error 00% 6440 -
# 4 Extended offline Completed without error 00% 4632 -
# 5 Short offline Completed without error 00% 4452 -
# 6 Short offline Completed without error 00% 0 -
[root@nas ~]# smartctl -l selftest /dev/sde
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-4.7.0-1.el7.elrepo.x86_64] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Extended offline Completed: read failure 90% 8452 339784376
# 2 Extended offline Completed without error 00% 4716 -
# 3 Short offline Completed without error 00% 1896 -
# 4 Extended offline Completed without error 00% 88 -
# 5 Short offline Completed without error 00% 15 -
# 6 Short offline Aborted by host 90% 12 -
# 7 Short offline Aborted by host 90% 12 -
# 8 Short offline Aborted by host 90% 12 -
# 9 Short offline Aborted by host 90% 5 -
#10 Short offline Aborted by host 90% 5 -
#11 Short offline Aborted by host 90% 5 -
#12 Short offline Aborted by host 90% 4 -
#13 Short offline Aborted by host 90% 4 -
#14 Short offline Aborted by host 90% 4 -
#15 Short offline Aborted by host 90% 0 -
#16 Short offline Aborted by host 90% 0 -
[root@nas ~]# smartctl -l selftest /dev/sdf
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-4.7.0-1.el7.elrepo.x86_64] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Extended offline Completed without error 00% 3118 -
# 2 Short offline Completed without error 00% 12 -
[root@nas ~]# smartctl -l selftest /dev/sdg
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-4.7.0-1.el7.elrepo.x86_64] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Extended offline Completed without error 00% 6298 -
# 2 Extended offline Completed without error 00% 2555 -
[root@nas ~]# smartctl -l selftest /dev/sdh
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-4.7.0-1.el7.elrepo.x86_64] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Extended offline Completed without error 00% 6147 -
# 2 Extended offline Completed without error 00% 2404 -
# 3 Short offline Completed without error 00% 0 -
[root@nas ~]# smartctl -l selftest /dev/sdi
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-4.7.0-1.el7.elrepo.x86_64] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Extended offline Completed without error 00% 6147 -
# 2 Extended offline Completed without error 00% 2404 -
# 3 Short offline Completed without error 00% 0 -
[root@nas ~]# smartctl -a /dev/sdb | grep "Raw_Read_Error_Rate"
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0
[root@nas ~]# smartctl -a /dev/sdc | grep "Raw_Read_Error_Rate"
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0
[root@nas ~]# smartctl -a /dev/sdd | grep "Raw_Read_Error_Rate"
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0
[root@nas ~]# smartctl -a /dev/sde | grep "Raw_Read_Error_Rate"
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 1258
[root@nas ~]# smartctl -a /dev/sdf | grep "Raw_Read_Error_Rate"
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0
[root@nas ~]# smartctl -a /dev/sdg | grep "Raw_Read_Error_Rate"
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0
[root@nas ~]# smartctl -a /dev/sdh | grep "Raw_Read_Error_Rate"
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0
[root@nas ~]# smartctl -a /dev/sdi | grep "Raw_Read_Error_Rate"
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0
Yup. /dev/sde seems to have an issue.
Get serial number of all drives for a possible RMA on /dev/sde.
[root@nas ~]# smartctl -a /dev/sdb | grep "Serial Number:"
Serial Number: WD-WMC4N0J0YT1V
[root@nas ~]# smartctl -a /dev/sdc | grep "Serial Number:"
Serial Number: WD-WMC4N0J2L138
[root@nas ~]# smartctl -a /dev/sdd | grep "Serial Number:"
Serial Number: WD-WCC4N2FJRTU9
[root@nas ~]# smartctl -a /dev/sde | grep "Serial Number:"
Serial Number: WD-WCC4N4SSDRFN
[root@nas ~]# smartctl -a /dev/sdf | grep "Serial Number:"
Serial Number: WD-WCC4N1VYZH52
[root@nas ~]# smartctl -a /dev/sdg | grep "Serial Number:"
Serial Number: WD-WMC4N0M57KEY
[root@nas ~]# smartctl -a /dev/sdh | grep "Serial Number:"
Serial Number: WD-WCC4N5YF2Z2Y
[root@nas ~]# smartctl -a /dev/sdi | grep "Serial Number:"
Serial Number: WD-WCC4N5CJ6H8U
Get List of BadBlocks on all drives. Run in background and save to file.
badblocks -v /dev/sdb > /tmp/bad-blocks-b.txt &
badblocks -v /dev/sdc > /tmp/bad-blocks-c.txt &
badblocks -v /dev/sdd > /tmp/bad-blocks-d.txt &
badblocks -v /dev/sde > /tmp/bad-blocks-e.txt &
badblocks -v /dev/sdf > /tmp/bad-blocks-f.txt &
badblocks -v /dev/sdg > /tmp/bad-blocks-g.txt &
badblocks -v /dev/sdh > /tmp/bad-blocks-h.txt &
badblocks -v /dev/sdi > /tmp/bad-blocks-i.txt &
Monitor file size with:
[root@nas ~]# watch ls -lsa /tmp/bad-blocks-*.txt
If you have a really bad drive it could create a file the size of the drive itself so be sure to monitor and make sure you do not fill up your /tmp directory.
If you need to kill it then ket the pid with:
[root@nas tmp]# ps -ef | grep "badblocks"
UID PID PPID C STIME TTY TIME CMD
root 27013 25404 3 10:43 pts/0 00:01:12 badblocks -v /dev/sdb
root 27014 25404 3 10:43 pts/0 00:01:12 badblocks -v /dev/sdc
root 27015 25404 3 10:43 pts/0 00:01:12 badblocks -v /dev/sdd
root 27016 25404 2 10:43 pts/0 00:01:11 badblocks -v /dev/sde
root 27017 25404 3 10:43 pts/0 00:01:13 badblocks -v /dev/sdf
root 27018 25404 3 10:43 pts/0 00:01:12 badblocks -v /dev/sdg
root 27019 25404 3 10:43 pts/0 00:01:12 badblocks -v /dev/sdh
root 27020 25404 3 10:43 pts/0 00:01:12 badblocks -v /dev/sdi
root 31044 26976 0 11:22 pts/1 00:00:00 grep --color=auto badblocks
While badblock test is running I have already got a RMA number from WD and a shipping label on my printer. I ordered a new drive from Amazon that will be here on the 28th. I will swap out then and ship bad drive back on the 29th.
Running smartctl test long on all drives
smartctl -t long /dev/sdb
smartctl -t long /dev/sdc
smartctl -t long /dev/sdd
smartctl -t long /dev/sde
smartctl -t long /dev/sdf
smartctl -t long /dev/sdg
smartctl -t long /dev/sdh
smartctl -t long /dev/sdi
Check progress of test
smartctl -a /dev/sdb | grep "Self-test execution status"
smartctl -a /dev/sdb | grep "of test remaining."
smartctl -a /dev/sdc | grep "Self-test execution status"
smartctl -a /dev/sdc | grep "of test remaining."
smartctl -a /dev/sdd | grep "Self-test execution status"
smartctl -a /dev/sdd | grep "of test remaining."
smartctl -a /dev/sde | grep "Self-test execution status"
smartctl -a /dev/sde | grep "of test remaining."
smartctl -a /dev/sdf | grep "Self-test execution status"
smartctl -a /dev/sdf | grep "of test remaining."
smartctl -a /dev/sdg | grep "Self-test execution status"
smartctl -a /dev/sdg | grep "of test remaining."
smartctl -a /dev/sdh | grep "Self-test execution status"
smartctl -a /dev/sdh | grep "of test remaining."
smartct
l -a /dev/sdi | grep "Self-test execution status"
smartctl -a /dev/sdi | grep "of test remaining."
New drive is in and I am backing up NAS. My btrfs pool of /myraid is gettin backuped up to a PC with raid1.
I am also duplicating the more inportant files to a SSD. Better safe than sorry.
New drive has had a full surface test (9 hours) and passed with flying colors.
I am not turning this into a drive remove/replace since i want to change the partions of my boot SSD so I am just
goging to nuke the entire system and rebuild from scratch.
my /(root) partion is getting a backup vi tar so i can have access to my old crontab files and maintemce scripts.
I can just yse the old samba.conf as well, etc....
tar -zcvpf /myraid/nas.backup.tar.gz --exclude=/myraid --exclude=/usr --exclude=/proc --exclude=/lib --exclude=/lib64 --exclude=/dev /
Now copy the tar.gz file to a few drives off the server as well.
Make USB install Centos 7.3 min and do the install :)
Install done. I see all 9 drives and 4 network connections. I setup all the NICs during the install and they all seem to be ok
Possibily some tweeking on these later.
I installed the OS on my SSD with 1GB /boot and /boot/efi (I am using EFI). The rest to /
My other 8 drives are on my Supermicro AOC-SAS2LP-MV8 JBOD HBA. I will not touch those untill I get ready to setup btrfs on them.
So now some base stuff
cp /etc/sysconfig/selinux /etc/sysconfig/selinux.bak
sed -i 's/^SELINUX=.*/SELINUX=disabled/g' /etc/sysconfig/selinux
cp /etc/selinux/config /etc/selinux/config.bak
sed -i 's/^SELINUX=.*/SELINUX=disabled/g' /etc/selinux/config
systemctl disable firewalld
systemctl stop firewalld
service iptables stop
service ip6tables stop
chkconfig iptables off
chkconfig ip6tables off
yum -y install bind-utils traceroute net-tools ntp* gcc glibc glibc-common gd gd-devel make net-snmp openssl-devel xinetd unzip libtool* make patch perl bison flex-devel gcc-c++ ncurses-devel flex libtermcap-devel autoconf* automake* autoconf libxml2-devel cmake sqlite* wget ntp* lm_sensors ncurses-devel qt-devel hmaccalc zlib-devel binutils-devel elfutils-libelf-devel wget bc gzip uuid* libuuid-devel jansson* libxml2* sqlite* openssl* lsof NetworkManager-tui mlocate yum-utils kernel-devel nfs-utils tcpdump git vim gdisk parted
yum -y groupinstall "Development Tools"
yum -y update
yum -y upgrade
cd /root
echo ':color desert' > .vimrc
systemctl disable kdump.service
reboot
# cat /etc/default/grub
GRUB_TIMEOUT=60
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="crashkernel=auto rd.lvm.lv=cl_bcache/root ipv6.disable=1 zswap.enable=1 consoleblank=0"
GRUB_DISABLE_RECOVERY="true"
Make changes as refelected about to
GRUB_CMDLINE_LINUX="crashkernel=auto rd.lvm.lv=cl_bcache/root ipv6.disable=1 zswap.enable=1 consoleblank=0"
# grub2-mkconfig -o /boot/grub2/grub.cfg
or if using UEFI
# grub2-mkconfig -o /boot/efi/EFI/centos/grub.cfg
reboot
Now update kerenel
rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-2.el7.elrepo.noarch.rpm
yum install yum-plugin-fastestmirror
yum --enablerepo=elrepo-kernel install kernel-ml
reboot
Manualy select new kernel from grub boot screen.
uname -r
4.10.1-1.el7.elrepo.x86_64
Do any testing you need and when happy set this to default entry when happy.
grub2-set-default 0
reboot
uname -r
4.10.1-1.el7.elrepo.x86_64
Now time to physicaly replace drive then setup btrfs.
poweroff
New drive in and server rebooted
parted -l
shows all drives. 7x WD RED NAS drives show still brtfs partitions. New drive has nothing.
idle3ctl show new drive has head parking on. lets turn that off.
# ./idle3ctl /dev/sde
Idle3 timer set to 138 (0x8a)
# ./idle3ctl -d /dev/sde
Idle3 timer disabled
Please power cycle your drive off and on for the new setting to be taken into account. A reboot will not be enough!
So lets powerr off, let set for a min, and power back on and rechedck.
poweroff
looks good on all drives 8 WD RED drives
[root@nas idle3-tools-0.9.1]# ./idle3ctl /dev/sdb
Idle3 timer is disabled
[root@nas idle3-tools-0.9.1]# ./idle3ctl /dev/sdc
Idle3 timer is disabled
[root@nas idle3-tools-0.9.1]# ./idle3ctl /dev/sdd
Idle3 timer is disabled
[root@nas idle3-tools-0.9.1]# ./idle3ctl /dev/sde
Idle3 timer is disabled
[root@nas idle3-tools-0.9.1]# ./idle3ctl /dev/sdf
Idle3 timer is disabled
[root@nas idle3-tools-0.9.1]# ./idle3ctl /dev/sdg
Idle3 timer is disabled
[root@nas idle3-tools-0.9.1]# ./idle3ctl /dev/sdh
Idle3 timer is disabled
[root@nas idle3-tools-0.9.1]# ./idle3ctl /dev/sdi
Idle3 timer is disabled
No lets clean the disk for a new array
I used parted to rm the partiions then a w and q.
Then
wipefs -a /dev/sdb
wipefs -a /dev/sdc
wipefs -a /dev/sdd
wipefs -a /dev/sde
wipefs -a /dev/sdf
wipefs -a /dev/sdg
wipefs -a /dev/sdh
wipefs -a /dev/sdi
Then
dd if=/dev/zero of=/dev/sdb bs=1024 count=1024
dd if=/dev/zero of=/dev/sdc bs=1024 count=1024
dd if=/dev/zero of=/dev/sdd bs=1024 count=1024
dd if=/dev/zero of=/dev/sde bs=1024 count=1024
dd if=/dev/zero of=/dev/sdf bs=1024 count=1024
dd if=/dev/zero of=/dev/sdg bs=1024 count=1024
dd if=/dev/zero of=/dev/sdh bs=1024 count=1024
dd if=/dev/zero of=/dev/sdi bs=1024 count=1024
Then to just look at the devs
ls -lsa /dev/sd*
0 brw-rw---- 1 root disk 8, 0 Mar 1 15:02 /dev/sda
0 brw-rw---- 1 root disk 8, 1 Mar 1 15:02 /dev/sda1
0 brw-rw---- 1 root disk 8, 2 Mar 1 15:02 /dev/sda2
0 brw-rw---- 1 root disk 8, 3 Mar 1 15:02 /dev/sda3
0 brw-rw---- 1 root disk 8, 16 Mar 1 15:11 /dev/sdb
0 brw-rw---- 1 root disk 8, 32 Mar 1 15:11 /dev/sdc
0 brw-rw---- 1 root disk 8, 48 Mar 1 15:11 /dev/sdd
0 brw-rw---- 1 root disk 8, 64 Mar 1 15:11 /dev/sde
0 brw-rw---- 1 root disk 8, 80 Mar 1 15:11 /dev/sdf
0 brw-rw---- 1 root disk 8, 96 Mar 1 15:11 /dev/sdg
0 brw-rw---- 1 root disk 8, 112 Mar 1 15:11 /dev/sdh
0 brw-rw---- 1 root disk 8, 128 Mar 1 15:11 /dev/sdi
fdisk -l also shows they look ready
[root@nas idle3-tools-0.9.1]# fdisk -l
WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion.
Disk /dev/sda: 128.0 GB, 128035676160 bytes, 250069680 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: gpt
# Start End Size Type Name
1 2048 2099199 1G EFI System EFI System Partition
2 2099200 4196351 1G Microsoft basic
3 4196352 250068991 117.2G Linux LVM
Disk /dev/sdb: 3000.6 GB, 3000592982016 bytes, 5860533168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/sdc: 3000.6 GB, 3000592982016 bytes, 5860533168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/sdd: 3000.6 GB, 3000592982016 bytes, 5860533168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/sde: 3000.6 GB, 3000592982016 bytes, 5860533168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/sdf: 3000.6 GB, 3000592982016 bytes, 5860533168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/sdg: 3000.6 GB, 3000592982016 bytes, 5860533168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/sdh: 3000.6 GB, 3000592982016 bytes, 5860533168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/sdi: 3000.6 GB, 3000592982016 bytes, 5860533168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/mapper/cl_nas-root: 125.9 GB, 125883645952 bytes, 245866496 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Check out btrfs version first
# btrfs --version
btrfs-progs v4.4.1
I think there is a newer on out. Lets go see.
git clone git://git.kernel.org/pub/scm/linux/kernel/git/kdave/btrfs-progs.git
cd btrfs-progs
yum -y install libuuid-devel libattr-devel zlib-devel libacl-devel e2fsprogs-devel libblkid-devel lzo* asciidoc xmlto
./autogen.sh
./configure
make
Lets check version from within the folder
[root@nas btrfs-progs]# ./btrfs --version
btrfs-progs v4.9.1
Yup its newer
Now check from /
[root@nas btrfs-progs]# cd /
[root@nas /]# btrfs --version
btrfs-progs v4.4.1
[root@nas /]#
So we got two versions
I copied all +x files from /root/btrfs-progs to /usr/sbin overright files if they exist.
Now from / of drive I get
[root@nas /]# btrfs --version
btrfs-progs v4.9.1
I hope thats good :)
So lets build an array!!!
First I will use raid0 for some quick testing.
mkfs.btrfs -f -m raid0 -d raid0 -L myraid /dev/sdb /dev/sdc /dev/sdd /dev/sde /dev/sdf /dev/sdg /dev/sdh /dev/sdi
also here is for raid10
mkfs.btrfs -f -m raid10 -d raid10 -L myraid /dev/sdb /dev/sdc /dev/sdd /dev/sde /dev/sdf /dev/sdg /dev/sdh /dev/sdi
[root@nas ~]# mkfs.btrfs -f -m raid0 -d raid0 -L myraid /dev/sdb /dev/sdc /dev/sdd /dev/sde /dev/sdf /dev/sdg /dev/sdh /dev/sdi
btrfs-progs v4.9.1
See http://btrfs.wiki.kernel.org for more information.
Label: myraid
UUID: 5a5610aa-2615-4ee2-bd4a-076ab2931b70
Node size: 16384
Sector size: 4096
Filesystem size: 21.83TiB
Block group profiles:
Data: RAID0 8.00GiB
Metadata: RAID0 4.00GiB
System: RAID0 16.00MiB
SSD detected: no
Incompat features: extref, skinny-metadata
Number of devices: 8
Devices:
ID SIZE PATH
1 2.73TiB /dev/sdb
2 2.73TiB /dev/sdc
3 2.73TiB /dev/sdd
4 2.73TiB /dev/sde
5 2.73TiB /dev/sdf
6 2.73TiB /dev/sdg
7 2.73TiB /dev/sdh
8 2.73TiB /dev/sdi
[root@nas ~]# btrfs fi show
Label: 'myraid' uuid: 5a5610aa-2615-4ee2-bd4a-076ab2931b70
Total devices 8 FS bytes used 112.00KiB
devid 1 size 2.73TiB used 1.50GiB path /dev/sdb
devid 2 size 2.73TiB used 1.50GiB path /dev/sdc
devid 3 size 2.73TiB used 1.50GiB path /dev/sdd
devid 4 size 2.73TiB used 1.50GiB path /dev/sde
devid 5 size 2.73TiB used 1.50GiB path /dev/sdf
devid 6 size 2.73TiB used 1.50GiB path /dev/sdg
devid 7 size 2.73TiB used 1.50GiB path /dev/sdh
devid 8 size 2.73TiB used 1.50GiB path /dev/sdi
Lets mount this thing
mkdir /myraid
mount with UUID from above. uuid: 5a5610aa-2615-4ee2-bd4a-076ab2931b70
mount -t btrfs -o defaults,nodatacow,noatime,x-systemd.device-timeout=30 -U 5a5610aa-2615-4ee2-bd4a-076ab2931b70 /myraid
[root@nas ~]# df -h
Filesystem Size Used Avail Use% Mounted on
devtmpfs 32G 0 32G 0% /dev
tmpfs 32G 0 32G 0% /dev/shm
tmpfs 32G 8.9M 32G 1% /run
tmpfs 32G 0 32G 0% /sys/fs/cgroup
/dev/mapper/cl_nas-root 118G 2.2G 116G 2% /
/dev/sda2 1014M 191M 824M 19% /boot
/dev/sda1 1022M 9.5M 1013M 1% /boot/efi
tmpfs 6.3G 0 6.3G 0% /run/user/0
/dev/sdb 22T 20M 22T 1% /myraid
Oh ya!!! 22TB of btrfs array
My line for fstab i will put in later is:
UUID=5a5610aa-2615-4ee2-bd4a-076ab2931b70 /myraid btrfs defaults,nodatacow,noatime,x-systemd.device-timeout=30 0 0
this is how to clear cache when testing transfer speeds to make sure you are not using cache.
Do this between each transfer
sync; echo 2 > /proc/sys/vm/drop_caches
sync; echo 3 > /proc/sys/vm/drop_caches
---tune 10Gb CNA if needed
service irqbalance stop
service cpuspeed stop
chkconfig irqbalance off
chkconfig cpuspeed off
systemctl disable irqbalance
systemctl disable cpuspeed
systemctl stop irqbalance
systemctl stop cpuspeed
vi /etc/sysconfig/network-scripts/ifcfg-eth???
MTU="9000"
vi /etc/sysctl.conf
# -- tuning -- #
# Increase system file descriptor limit
fs.file-max = 65535
# Increase system IP port range to allow for more concurrent connections
net.ipv4.ip_local_port_range = 1024 65000
# -- 10gbe tuning from Intel ixgb driver README -- #
# turn off selective ACK and timestamps
net.ipv4.tcp_sack = 0
net.ipv4.tcp_timestamps = 0
# memory allocation min/pressure/max.
# read buffer, write buffer, and buffer space
net.ipv4.tcp_rmem = 10000000 10000000 10000000
net.ipv4.tcp_wmem = 10000000 10000000 10000000
net.ipv4.tcp_mem = 10000000 10000000 10000000
net.core.rmem_max = 524287
net.core.wmem_max = 524287
net.core.rmem_default = 524287
net.core.wmem_default = 524287
net.core.optmem_max = 524287
net.core.netdev_max_backlog = 300000
reboot and test speed.
on linux client pointing to server with ip 192.168.90.100
# iperf3 -c 192.168.90.100 -p 5201
on linux server with IP 192.168.90.100
iperf3 -s -p 5201 -B 192.168.90.100
---end tune 10Gb CNA if needed
---setup NFS for ESXi server
vi /etc/exports
/myraid/ 192.168.10.0/24(rw,async,no_root_squash,no_subtree_check)
/myraid/ 192.168.90.0/24(rw,async,no_root_squash,no_subtree_check)
systemctl start rpcbind nfs-server
systemctl enable rpcbind nfs-server
---end setup NFS for ESXi server
--install samaba if needed
yum -y install samba
useradd samba -s /sbin/nologin
smbpasswd -a samba
Supply a password
Retype the password
mkdir /myraid
chown -R samba:root /myraid/
vi /etc/samba/smb.conf
[global]
workgroup = WORKGROUP ;use name of your workgroup here
server string = Samba Server Version %v
netbios name = NAS
Add this to botton of /etc/samba/smb.conf file
[NAS]
comment = NAS
path = /myraid
writable = yes
valid users = samba
systemctl start smb
systemctl enable smb
systemctl start nmb
systemctl enable nmb
testparm
--end install samaba if needed
---install plex if needed
visit plex site and get rpm for your version of OS
copy this to /root
yum -y localinstall name.rpm
systemctl enable plexmediaserver
systemctl start plexmediaserver
---end install plex if needed
---install LAMP
yum -y install httpd mariadb-server mariadb php php-mysql
systemctl enable httpd.service
systemctl start httpd.service
systemctl status httpd.service
Make sure it works with:
http://your_server_IP_address/
systemctl enable mariadb
systemctl start mariadb
systemctl status mariadb
mysql_secure_installation
vi /var/www/html/info.php
<?php phpinfo(); ?>
http://your_server_IP_address/info.php
---End install LAMP
---Extra goodies
yum -y install epel-release
yum -y install stress htop iftop iotop hddtemp smartmontools iperf3 sysstat mlocate
yum -y update
updatedb **this is to update mlocate db
---End Extra goodies
---Use gmail as relay for sending mail
Replace glen@gmail.com with a real email address in items below
Replace mycentserver.mydomain.domain with real hostname in items below
Replace gmail_password with real password in items below
# yum remove postfix
Now install ssmtp.
# yum -y install ssmtp mailx
Now edit your /etc/ssmtp/ssmtp.conf. I removed everything and just added the below in the file.
# vi /etc/ssmtp/ssmtp.conf
root=glen@gmail.com
mailhub=smtp.gmail.com:587
rewriteDomain=gmail.com
hostname=mycentserver.mydomain.domain
UseTLS=Yes
UseSTARTTLS=Yes
AuthUser=glen@gmail.com
AuthPass=gmail_password
FromLineOverride=YES
# This solved if you get a ssmtp: Cannot open smtp.gmail.com:587 when try to send an email
# if you enabled uncommenting DEBUG=Yes line and your /var/log/maillog show
# SSL not working: certificate verify failed (20) Uncomment the following line but first
# VERIFY FILE EXISTS
TLS_CA_File=/etc/pki/tls/certs/ca-bundle.crt
# DEBUG=Yes
Now edit your /etc/ssmtp/revaliases file and add the following.
# vi /etc/ssmtp/revaliases
root:glen@gmail.com:smtp.gmail.com:587
Now run
# alternatives --config mta
And choose the number for sendmail.ssmtp, like below
There is 1 program that provides 'mta'.
Selection Command
-----------------------------------------------
*+ 1 /usr/sbin/sendmail.ssmtp
Enter to keep the current selection[+], or type selection number: 1
#
Now send email to your gmail account from Centos cli
# mail -s "Test Subject" glen@gmail.com
Type your message text and on new line press ctrl d to send
---End Use gmail as relay for sending mail
Was not getting failed scrubs but seeing some errors.
This is 8x 3TB WD Red drives in raid10 on a Supermicro AOC-SAS2LP-MV8 Add-on Card, 8-Channel SAS/SATA Adapter with 600MB/s per Channel in a PCIE x16 slot running at x8 on a Supermicro ATX DDR4 LGA 1151 C7Z170-OCE-O Motherboard with 64GB DDR4 RAM (4x 16GB sticks).
FYI Everything was done online unless otherwise stated.
What file system looks like in btrfs.
[root@nas ~]# btrfs fi show
Label: 'myraid' uuid: 1ec4f641-74a8-466e-89cc-e687672aaaea
Total devices 8 FS bytes used 1.16TiB
devid 1 size 2.73TiB used 301.53GiB path /dev/sdb
devid 2 size 2.73TiB used 301.53GiB path /dev/sdc
devid 3 size 2.73TiB used 301.53GiB path /dev/sdd
devid 4 size 2.73TiB used 301.53GiB path /dev/sde
devid 6 size 2.73TiB used 301.53GiB path /dev/sdg
devid 7 size 2.73TiB used 301.53GiB path /dev/sdh
devid 8 size 2.73TiB used 301.53GiB path /dev/sdi
devid 9 size 2.73TiB used 301.53GiB path /dev/sdf
Take a look at device stats.
[root@nas ~]# /usr/local/bin/btrfs device stats /myraid/
[/dev/sdb].write_io_errs 0
[/dev/sdb].read_io_errs 0
[/dev/sdb].flush_io_errs 0
[/dev/sdb].corruption_errs 0
[/dev/sdb].generation_errs 0
[/dev/sdc].write_io_errs 0
[/dev/sdc].read_io_errs 0
[/dev/sdc].flush_io_errs 0
[/dev/sdc].corruption_errs 0
[/dev/sdc].generation_errs 0
[/dev/sdd].write_io_errs 0
[/dev/sdd].read_io_errs 0
[/dev/sdd].flush_io_errs 0
[/dev/sdd].corruption_errs 0
[/dev/sdd].generation_errs 0
[/dev/sde].write_io_errs 0
[/dev/sde].read_io_errs 44
[/dev/sde].flush_io_errs 0
[/dev/sde].corruption_errs 0
[/dev/sde].generation_errs 0
[/dev/sdg].write_io_errs 0
[/dev/sdg].read_io_errs 0
[/dev/sdg].flush_io_errs 0
[/dev/sdg].corruption_errs 0
[/dev/sdg].generation_errs 0
[/dev/sdh].write_io_errs 0
[/dev/sdh].read_io_errs 0
[/dev/sdh].flush_io_errs 0
[/dev/sdh].corruption_errs 0
[/dev/sdh].generation_errs 0
[/dev/sdi].write_io_errs 0
[/dev/sdi].read_io_errs 0
[/dev/sdi].flush_io_errs 0
[/dev/sdi].corruption_errs 0
[/dev/sdi].generation_errs 0
[/dev/sdf].write_io_errs 0
[/dev/sdf].read_io_errs 0
[/dev/sdf].flush_io_errs 0
[/dev/sdf].corruption_errs 0
[/dev/sdf].generation_errs 0
Run extended smartcl test.
[root@nas ~]# smartctl -t long /dev/sdb
[root@nas ~]# smartctl -t long /dev/sdc
[root@nas ~]# smartctl -t long /dev/sdd
[root@nas ~]# smartctl -t long /dev/sde
[root@nas ~]# smartctl -t long /dev/sdf
[root@nas ~]# smartctl -t long /dev/sdg
[root@nas ~]# smartctl -t long /dev/sdh
[root@nas ~]# smartctl -t long /dev/sdi
I waited an hour then reviewed the results.
[root@nas ~]# smartctl -l selftest /dev/sdb
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-4.7.0-1.el7.elrepo.x86_64] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Extended offline Completed without error 00% 12660 -
# 2 Extended offline Completed without error 00% 8916 -
# 3 Short offline Completed without error 00% 6097 -
# 4 Extended offline Completed without error 00% 4288 -
# 5 Short offline Completed without error 00% 4245 -
# 6 Short offline Completed without error 00% 4242 -
# 7 Short offline Interrupted (host reset) 50% 4241 -
# 8 Short offline Completed without error 00% 4172 -
# 9 Short offline Completed without error 00% 4109 -
[root@nas ~]# smartctl -l selftest /dev/sdc
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-4.7.0-1.el7.elrepo.x86_64] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Extended offline Completed without error 00% 12660 -
# 2 Extended offline Completed without error 00% 8916 -
# 3 Short offline Completed without error 00% 6096 -
# 4 Extended offline Completed without error 00% 4288 -
# 5 Short offline Completed without error 00% 4109 -
[root@nas ~]# smartctl -l selftest /dev/sdd
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-4.7.0-1.el7.elrepo.x86_64] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Extended offline Completed without error 00% 13003 -
# 2 Extended offline Completed without error 00% 9260 -
# 3 Short offline Completed without error 00% 6440 -
# 4 Extended offline Completed without error 00% 4632 -
# 5 Short offline Completed without error 00% 4452 -
# 6 Short offline Completed without error 00% 0 -
[root@nas ~]# smartctl -l selftest /dev/sde
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-4.7.0-1.el7.elrepo.x86_64] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Extended offline Completed: read failure 90% 8452 339784376
# 2 Extended offline Completed without error 00% 4716 -
# 3 Short offline Completed without error 00% 1896 -
# 4 Extended offline Completed without error 00% 88 -
# 5 Short offline Completed without error 00% 15 -
# 6 Short offline Aborted by host 90% 12 -
# 7 Short offline Aborted by host 90% 12 -
# 8 Short offline Aborted by host 90% 12 -
# 9 Short offline Aborted by host 90% 5 -
#10 Short offline Aborted by host 90% 5 -
#11 Short offline Aborted by host 90% 5 -
#12 Short offline Aborted by host 90% 4 -
#13 Short offline Aborted by host 90% 4 -
#14 Short offline Aborted by host 90% 4 -
#15 Short offline Aborted by host 90% 0 -
#16 Short offline Aborted by host 90% 0 -
[root@nas ~]# smartctl -l selftest /dev/sdf
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-4.7.0-1.el7.elrepo.x86_64] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Extended offline Completed without error 00% 3118 -
# 2 Short offline Completed without error 00% 12 -
[root@nas ~]# smartctl -l selftest /dev/sdg
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-4.7.0-1.el7.elrepo.x86_64] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Extended offline Completed without error 00% 6298 -
# 2 Extended offline Completed without error 00% 2555 -
[root@nas ~]# smartctl -l selftest /dev/sdh
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-4.7.0-1.el7.elrepo.x86_64] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Extended offline Completed without error 00% 6147 -
# 2 Extended offline Completed without error 00% 2404 -
# 3 Short offline Completed without error 00% 0 -
[root@nas ~]# smartctl -l selftest /dev/sdi
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-4.7.0-1.el7.elrepo.x86_64] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Extended offline Completed without error 00% 6147 -
# 2 Extended offline Completed without error 00% 2404 -
# 3 Short offline Completed without error 00% 0 -
[root@nas ~]# smartctl -a /dev/sdb | grep "Raw_Read_Error_Rate"
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0
[root@nas ~]# smartctl -a /dev/sdc | grep "Raw_Read_Error_Rate"
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0
[root@nas ~]# smartctl -a /dev/sdd | grep "Raw_Read_Error_Rate"
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0
[root@nas ~]# smartctl -a /dev/sde | grep "Raw_Read_Error_Rate"
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 1258
[root@nas ~]# smartctl -a /dev/sdf | grep "Raw_Read_Error_Rate"
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0
[root@nas ~]# smartctl -a /dev/sdg | grep "Raw_Read_Error_Rate"
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0
[root@nas ~]# smartctl -a /dev/sdh | grep "Raw_Read_Error_Rate"
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0
[root@nas ~]# smartctl -a /dev/sdi | grep "Raw_Read_Error_Rate"
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0
Yup. /dev/sde seems to have an issue.
Get serial number of all drives for a possible RMA on /dev/sde.
[root@nas ~]# smartctl -a /dev/sdb | grep "Serial Number:"
Serial Number: WD-WMC4N0J0YT1V
[root@nas ~]# smartctl -a /dev/sdc | grep "Serial Number:"
Serial Number: WD-WMC4N0J2L138
[root@nas ~]# smartctl -a /dev/sdd | grep "Serial Number:"
Serial Number: WD-WCC4N2FJRTU9
[root@nas ~]# smartctl -a /dev/sde | grep "Serial Number:"
Serial Number: WD-WCC4N4SSDRFN
[root@nas ~]# smartctl -a /dev/sdf | grep "Serial Number:"
Serial Number: WD-WCC4N1VYZH52
[root@nas ~]# smartctl -a /dev/sdg | grep "Serial Number:"
Serial Number: WD-WMC4N0M57KEY
[root@nas ~]# smartctl -a /dev/sdh | grep "Serial Number:"
Serial Number: WD-WCC4N5YF2Z2Y
[root@nas ~]# smartctl -a /dev/sdi | grep "Serial Number:"
Serial Number: WD-WCC4N5CJ6H8U
Get List of BadBlocks on all drives. Run in background and save to file.
badblocks -v /dev/sdb > /tmp/bad-blocks-b.txt &
badblocks -v /dev/sdc > /tmp/bad-blocks-c.txt &
badblocks -v /dev/sdd > /tmp/bad-blocks-d.txt &
badblocks -v /dev/sde > /tmp/bad-blocks-e.txt &
badblocks -v /dev/sdf > /tmp/bad-blocks-f.txt &
badblocks -v /dev/sdg > /tmp/bad-blocks-g.txt &
badblocks -v /dev/sdh > /tmp/bad-blocks-h.txt &
badblocks -v /dev/sdi > /tmp/bad-blocks-i.txt &
Monitor file size with:
[root@nas ~]# watch ls -lsa /tmp/bad-blocks-*.txt
If you have a really bad drive it could create a file the size of the drive itself so be sure to monitor and make sure you do not fill up your /tmp directory.
If you need to kill it then ket the pid with:
[root@nas tmp]# ps -ef | grep "badblocks"
UID PID PPID C STIME TTY TIME CMD
root 27013 25404 3 10:43 pts/0 00:01:12 badblocks -v /dev/sdb
root 27014 25404 3 10:43 pts/0 00:01:12 badblocks -v /dev/sdc
root 27015 25404 3 10:43 pts/0 00:01:12 badblocks -v /dev/sdd
root 27016 25404 2 10:43 pts/0 00:01:11 badblocks -v /dev/sde
root 27017 25404 3 10:43 pts/0 00:01:13 badblocks -v /dev/sdf
root 27018 25404 3 10:43 pts/0 00:01:12 badblocks -v /dev/sdg
root 27019 25404 3 10:43 pts/0 00:01:12 badblocks -v /dev/sdh
root 27020 25404 3 10:43 pts/0 00:01:12 badblocks -v /dev/sdi
root 31044 26976 0 11:22 pts/1 00:00:00 grep --color=auto badblocks
While badblock test is running I have already got a RMA number from WD and a shipping label on my printer. I ordered a new drive from Amazon that will be here on the 28th. I will swap out then and ship bad drive back on the 29th.
Running smartctl test long on all drives
smartctl -t long /dev/sdb
smartctl -t long /dev/sdc
smartctl -t long /dev/sdd
smartctl -t long /dev/sde
smartctl -t long /dev/sdf
smartctl -t long /dev/sdg
smartctl -t long /dev/sdh
smartctl -t long /dev/sdi
Check progress of test
smartctl -a /dev/sdb | grep "Self-test execution status"
smartctl -a /dev/sdb | grep "of test remaining."
smartctl -a /dev/sdc | grep "Self-test execution status"
smartctl -a /dev/sdc | grep "of test remaining."
smartctl -a /dev/sdd | grep "Self-test execution status"
smartctl -a /dev/sdd | grep "of test remaining."
smartctl -a /dev/sde | grep "Self-test execution status"
smartctl -a /dev/sde | grep "of test remaining."
smartctl -a /dev/sdf | grep "Self-test execution status"
smartctl -a /dev/sdf | grep "of test remaining."
smartctl -a /dev/sdg | grep "Self-test execution status"
smartctl -a /dev/sdg | grep "of test remaining."
smartctl -a /dev/sdh | grep "Self-test execution status"
smartctl -a /dev/sdh | grep "of test remaining."
smartct
l -a /dev/sdi | grep "Self-test execution status"
smartctl -a /dev/sdi | grep "of test remaining."
New drive is in and I am backing up NAS. My btrfs pool of /myraid is gettin backuped up to a PC with raid1.
I am also duplicating the more inportant files to a SSD. Better safe than sorry.
New drive has had a full surface test (9 hours) and passed with flying colors.
I am not turning this into a drive remove/replace since i want to change the partions of my boot SSD so I am just
goging to nuke the entire system and rebuild from scratch.
my /(root) partion is getting a backup vi tar so i can have access to my old crontab files and maintemce scripts.
I can just yse the old samba.conf as well, etc....
tar -zcvpf /myraid/nas.backup.tar.gz --exclude=/myraid --exclude=/usr --exclude=/proc --exclude=/lib --exclude=/lib64 --exclude=/dev /
Now copy the tar.gz file to a few drives off the server as well.
Make USB install Centos 7.3 min and do the install :)
Install done. I see all 9 drives and 4 network connections. I setup all the NICs during the install and they all seem to be ok
Possibily some tweeking on these later.
I installed the OS on my SSD with 1GB /boot and /boot/efi (I am using EFI). The rest to /
My other 8 drives are on my Supermicro AOC-SAS2LP-MV8 JBOD HBA. I will not touch those untill I get ready to setup btrfs on them.
So now some base stuff
cp /etc/sysconfig/selinux /etc/sysconfig/selinux.bak
sed -i 's/^SELINUX=.*/SELINUX=disabled/g' /etc/sysconfig/selinux
cp /etc/selinux/config /etc/selinux/config.bak
sed -i 's/^SELINUX=.*/SELINUX=disabled/g' /etc/selinux/config
systemctl disable firewalld
systemctl stop firewalld
service iptables stop
service ip6tables stop
chkconfig iptables off
chkconfig ip6tables off
yum -y install bind-utils traceroute net-tools ntp* gcc glibc glibc-common gd gd-devel make net-snmp openssl-devel xinetd unzip libtool* make patch perl bison flex-devel gcc-c++ ncurses-devel flex libtermcap-devel autoconf* automake* autoconf libxml2-devel cmake sqlite* wget ntp* lm_sensors ncurses-devel qt-devel hmaccalc zlib-devel binutils-devel elfutils-libelf-devel wget bc gzip uuid* libuuid-devel jansson* libxml2* sqlite* openssl* lsof NetworkManager-tui mlocate yum-utils kernel-devel nfs-utils tcpdump git vim gdisk parted
yum -y groupinstall "Development Tools"
yum -y update
yum -y upgrade
cd /root
echo ':color desert' > .vimrc
systemctl disable kdump.service
reboot
# cat /etc/default/grub
GRUB_TIMEOUT=60
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="crashkernel=auto rd.lvm.lv=cl_bcache/root ipv6.disable=1 zswap.enable=1 consoleblank=0"
GRUB_DISABLE_RECOVERY="true"
Make changes as refelected about to
GRUB_CMDLINE_LINUX="crashkernel=auto rd.lvm.lv=cl_bcache/root ipv6.disable=1 zswap.enable=1 consoleblank=0"
# grub2-mkconfig -o /boot/grub2/grub.cfg
or if using UEFI
# grub2-mkconfig -o /boot/efi/EFI/centos/grub.cfg
reboot
Now update kerenel
rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-2.el7.elrepo.noarch.rpm
yum install yum-plugin-fastestmirror
yum --enablerepo=elrepo-kernel install kernel-ml
reboot
Manualy select new kernel from grub boot screen.
uname -r
4.10.1-1.el7.elrepo.x86_64
Do any testing you need and when happy set this to default entry when happy.
grub2-set-default 0
reboot
uname -r
4.10.1-1.el7.elrepo.x86_64
Now time to physicaly replace drive then setup btrfs.
poweroff
New drive in and server rebooted
parted -l
shows all drives. 7x WD RED NAS drives show still brtfs partitions. New drive has nothing.
idle3ctl show new drive has head parking on. lets turn that off.
# ./idle3ctl /dev/sde
Idle3 timer set to 138 (0x8a)
# ./idle3ctl -d /dev/sde
Idle3 timer disabled
Please power cycle your drive off and on for the new setting to be taken into account. A reboot will not be enough!
So lets powerr off, let set for a min, and power back on and rechedck.
poweroff
looks good on all drives 8 WD RED drives
[root@nas idle3-tools-0.9.1]# ./idle3ctl /dev/sdb
Idle3 timer is disabled
[root@nas idle3-tools-0.9.1]# ./idle3ctl /dev/sdc
Idle3 timer is disabled
[root@nas idle3-tools-0.9.1]# ./idle3ctl /dev/sdd
Idle3 timer is disabled
[root@nas idle3-tools-0.9.1]# ./idle3ctl /dev/sde
Idle3 timer is disabled
[root@nas idle3-tools-0.9.1]# ./idle3ctl /dev/sdf
Idle3 timer is disabled
[root@nas idle3-tools-0.9.1]# ./idle3ctl /dev/sdg
Idle3 timer is disabled
[root@nas idle3-tools-0.9.1]# ./idle3ctl /dev/sdh
Idle3 timer is disabled
[root@nas idle3-tools-0.9.1]# ./idle3ctl /dev/sdi
Idle3 timer is disabled
No lets clean the disk for a new array
I used parted to rm the partiions then a w and q.
Then
wipefs -a /dev/sdb
wipefs -a /dev/sdc
wipefs -a /dev/sdd
wipefs -a /dev/sde
wipefs -a /dev/sdf
wipefs -a /dev/sdg
wipefs -a /dev/sdh
wipefs -a /dev/sdi
Then
dd if=/dev/zero of=/dev/sdb bs=1024 count=1024
dd if=/dev/zero of=/dev/sdc bs=1024 count=1024
dd if=/dev/zero of=/dev/sdd bs=1024 count=1024
dd if=/dev/zero of=/dev/sde bs=1024 count=1024
dd if=/dev/zero of=/dev/sdf bs=1024 count=1024
dd if=/dev/zero of=/dev/sdg bs=1024 count=1024
dd if=/dev/zero of=/dev/sdh bs=1024 count=1024
dd if=/dev/zero of=/dev/sdi bs=1024 count=1024
Then to just look at the devs
ls -lsa /dev/sd*
0 brw-rw---- 1 root disk 8, 0 Mar 1 15:02 /dev/sda
0 brw-rw---- 1 root disk 8, 1 Mar 1 15:02 /dev/sda1
0 brw-rw---- 1 root disk 8, 2 Mar 1 15:02 /dev/sda2
0 brw-rw---- 1 root disk 8, 3 Mar 1 15:02 /dev/sda3
0 brw-rw---- 1 root disk 8, 16 Mar 1 15:11 /dev/sdb
0 brw-rw---- 1 root disk 8, 32 Mar 1 15:11 /dev/sdc
0 brw-rw---- 1 root disk 8, 48 Mar 1 15:11 /dev/sdd
0 brw-rw---- 1 root disk 8, 64 Mar 1 15:11 /dev/sde
0 brw-rw---- 1 root disk 8, 80 Mar 1 15:11 /dev/sdf
0 brw-rw---- 1 root disk 8, 96 Mar 1 15:11 /dev/sdg
0 brw-rw---- 1 root disk 8, 112 Mar 1 15:11 /dev/sdh
0 brw-rw---- 1 root disk 8, 128 Mar 1 15:11 /dev/sdi
fdisk -l also shows they look ready
[root@nas idle3-tools-0.9.1]# fdisk -l
WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion.
Disk /dev/sda: 128.0 GB, 128035676160 bytes, 250069680 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: gpt
# Start End Size Type Name
1 2048 2099199 1G EFI System EFI System Partition
2 2099200 4196351 1G Microsoft basic
3 4196352 250068991 117.2G Linux LVM
Disk /dev/sdb: 3000.6 GB, 3000592982016 bytes, 5860533168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/sdc: 3000.6 GB, 3000592982016 bytes, 5860533168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/sdd: 3000.6 GB, 3000592982016 bytes, 5860533168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/sde: 3000.6 GB, 3000592982016 bytes, 5860533168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/sdf: 3000.6 GB, 3000592982016 bytes, 5860533168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/sdg: 3000.6 GB, 3000592982016 bytes, 5860533168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/sdh: 3000.6 GB, 3000592982016 bytes, 5860533168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/sdi: 3000.6 GB, 3000592982016 bytes, 5860533168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/mapper/cl_nas-root: 125.9 GB, 125883645952 bytes, 245866496 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Check out btrfs version first
# btrfs --version
btrfs-progs v4.4.1
I think there is a newer on out. Lets go see.
git clone git://git.kernel.org/pub/scm/linux/kernel/git/kdave/btrfs-progs.git
cd btrfs-progs
yum -y install libuuid-devel libattr-devel zlib-devel libacl-devel e2fsprogs-devel libblkid-devel lzo* asciidoc xmlto
./autogen.sh
./configure
make
Lets check version from within the folder
[root@nas btrfs-progs]# ./btrfs --version
btrfs-progs v4.9.1
Yup its newer
Now check from /
[root@nas btrfs-progs]# cd /
[root@nas /]# btrfs --version
btrfs-progs v4.4.1
[root@nas /]#
So we got two versions
I copied all +x files from /root/btrfs-progs to /usr/sbin overright files if they exist.
Now from / of drive I get
[root@nas /]# btrfs --version
btrfs-progs v4.9.1
I hope thats good :)
So lets build an array!!!
First I will use raid0 for some quick testing.
mkfs.btrfs -f -m raid0 -d raid0 -L myraid /dev/sdb /dev/sdc /dev/sdd /dev/sde /dev/sdf /dev/sdg /dev/sdh /dev/sdi
also here is for raid10
mkfs.btrfs -f -m raid10 -d raid10 -L myraid /dev/sdb /dev/sdc /dev/sdd /dev/sde /dev/sdf /dev/sdg /dev/sdh /dev/sdi
[root@nas ~]# mkfs.btrfs -f -m raid0 -d raid0 -L myraid /dev/sdb /dev/sdc /dev/sdd /dev/sde /dev/sdf /dev/sdg /dev/sdh /dev/sdi
btrfs-progs v4.9.1
See http://btrfs.wiki.kernel.org for more information.
Label: myraid
UUID: 5a5610aa-2615-4ee2-bd4a-076ab2931b70
Node size: 16384
Sector size: 4096
Filesystem size: 21.83TiB
Block group profiles:
Data: RAID0 8.00GiB
Metadata: RAID0 4.00GiB
System: RAID0 16.00MiB
SSD detected: no
Incompat features: extref, skinny-metadata
Number of devices: 8
Devices:
ID SIZE PATH
1 2.73TiB /dev/sdb
2 2.73TiB /dev/sdc
3 2.73TiB /dev/sdd
4 2.73TiB /dev/sde
5 2.73TiB /dev/sdf
6 2.73TiB /dev/sdg
7 2.73TiB /dev/sdh
8 2.73TiB /dev/sdi
[root@nas ~]# btrfs fi show
Label: 'myraid' uuid: 5a5610aa-2615-4ee2-bd4a-076ab2931b70
Total devices 8 FS bytes used 112.00KiB
devid 1 size 2.73TiB used 1.50GiB path /dev/sdb
devid 2 size 2.73TiB used 1.50GiB path /dev/sdc
devid 3 size 2.73TiB used 1.50GiB path /dev/sdd
devid 4 size 2.73TiB used 1.50GiB path /dev/sde
devid 5 size 2.73TiB used 1.50GiB path /dev/sdf
devid 6 size 2.73TiB used 1.50GiB path /dev/sdg
devid 7 size 2.73TiB used 1.50GiB path /dev/sdh
devid 8 size 2.73TiB used 1.50GiB path /dev/sdi
Lets mount this thing
mkdir /myraid
mount with UUID from above. uuid: 5a5610aa-2615-4ee2-bd4a-076ab2931b70
mount -t btrfs -o defaults,nodatacow,noatime,x-systemd.device-timeout=30 -U 5a5610aa-2615-4ee2-bd4a-076ab2931b70 /myraid
[root@nas ~]# df -h
Filesystem Size Used Avail Use% Mounted on
devtmpfs 32G 0 32G 0% /dev
tmpfs 32G 0 32G 0% /dev/shm
tmpfs 32G 8.9M 32G 1% /run
tmpfs 32G 0 32G 0% /sys/fs/cgroup
/dev/mapper/cl_nas-root 118G 2.2G 116G 2% /
/dev/sda2 1014M 191M 824M 19% /boot
/dev/sda1 1022M 9.5M 1013M 1% /boot/efi
tmpfs 6.3G 0 6.3G 0% /run/user/0
/dev/sdb 22T 20M 22T 1% /myraid
Oh ya!!! 22TB of btrfs array
My line for fstab i will put in later is:
UUID=5a5610aa-2615-4ee2-bd4a-076ab2931b70 /myraid btrfs defaults,nodatacow,noatime,x-systemd.device-timeout=30 0 0
this is how to clear cache when testing transfer speeds to make sure you are not using cache.
Do this between each transfer
sync; echo 2 > /proc/sys/vm/drop_caches
sync; echo 3 > /proc/sys/vm/drop_caches
---tune 10Gb CNA if needed
service irqbalance stop
service cpuspeed stop
chkconfig irqbalance off
chkconfig cpuspeed off
systemctl disable irqbalance
systemctl disable cpuspeed
systemctl stop irqbalance
systemctl stop cpuspeed
vi /etc/sysconfig/network-scripts/ifcfg-eth???
MTU="9000"
vi /etc/sysctl.conf
# -- tuning -- #
# Increase system file descriptor limit
fs.file-max = 65535
# Increase system IP port range to allow for more concurrent connections
net.ipv4.ip_local_port_range = 1024 65000
# -- 10gbe tuning from Intel ixgb driver README -- #
# turn off selective ACK and timestamps
net.ipv4.tcp_sack = 0
net.ipv4.tcp_timestamps = 0
# memory allocation min/pressure/max.
# read buffer, write buffer, and buffer space
net.ipv4.tcp_rmem = 10000000 10000000 10000000
net.ipv4.tcp_wmem = 10000000 10000000 10000000
net.ipv4.tcp_mem = 10000000 10000000 10000000
net.core.rmem_max = 524287
net.core.wmem_max = 524287
net.core.rmem_default = 524287
net.core.wmem_default = 524287
net.core.optmem_max = 524287
net.core.netdev_max_backlog = 300000
reboot and test speed.
on linux client pointing to server with ip 192.168.90.100
# iperf3 -c 192.168.90.100 -p 5201
on linux server with IP 192.168.90.100
iperf3 -s -p 5201 -B 192.168.90.100
---end tune 10Gb CNA if needed
---setup NFS for ESXi server
vi /etc/exports
/myraid/ 192.168.10.0/24(rw,async,no_root_squash,no_subtree_check)
/myraid/ 192.168.90.0/24(rw,async,no_root_squash,no_subtree_check)
systemctl start rpcbind nfs-server
systemctl enable rpcbind nfs-server
---end setup NFS for ESXi server
--install samaba if needed
yum -y install samba
useradd samba -s /sbin/nologin
smbpasswd -a samba
Supply a password
Retype the password
mkdir /myraid
chown -R samba:root /myraid/
vi /etc/samba/smb.conf
[global]
workgroup = WORKGROUP ;use name of your workgroup here
server string = Samba Server Version %v
netbios name = NAS
Add this to botton of /etc/samba/smb.conf file
[NAS]
comment = NAS
path = /myraid
writable = yes
valid users = samba
systemctl start smb
systemctl enable smb
systemctl start nmb
systemctl enable nmb
testparm
--end install samaba if needed
---install plex if needed
visit plex site and get rpm for your version of OS
copy this to /root
yum -y localinstall name.rpm
systemctl enable plexmediaserver
systemctl start plexmediaserver
---end install plex if needed
---install LAMP
yum -y install httpd mariadb-server mariadb php php-mysql
systemctl enable httpd.service
systemctl start httpd.service
systemctl status httpd.service
Make sure it works with:
http://your_server_IP_address/
systemctl enable mariadb
systemctl start mariadb
systemctl status mariadb
mysql_secure_installation
vi /var/www/html/info.php
<?php phpinfo(); ?>
http://your_server_IP_address/info.php
---End install LAMP
---Extra goodies
yum -y install epel-release
yum -y install stress htop iftop iotop hddtemp smartmontools iperf3 sysstat mlocate
yum -y update
updatedb **this is to update mlocate db
---End Extra goodies
---Use gmail as relay for sending mail
Replace glen@gmail.com with a real email address in items below
Replace mycentserver.mydomain.domain with real hostname in items below
Replace gmail_password with real password in items below
# yum remove postfix
Now install ssmtp.
# yum -y install ssmtp mailx
Now edit your /etc/ssmtp/ssmtp.conf. I removed everything and just added the below in the file.
# vi /etc/ssmtp/ssmtp.conf
root=glen@gmail.com
mailhub=smtp.gmail.com:587
rewriteDomain=gmail.com
hostname=mycentserver.mydomain.domain
UseTLS=Yes
UseSTARTTLS=Yes
AuthUser=glen@gmail.com
AuthPass=gmail_password
FromLineOverride=YES
# This solved if you get a ssmtp: Cannot open smtp.gmail.com:587 when try to send an email
# if you enabled uncommenting DEBUG=Yes line and your /var/log/maillog show
# SSL not working: certificate verify failed (20) Uncomment the following line but first
# VERIFY FILE EXISTS
TLS_CA_File=/etc/pki/tls/certs/ca-bundle.crt
# DEBUG=Yes
Now edit your /etc/ssmtp/revaliases file and add the following.
# vi /etc/ssmtp/revaliases
root:glen@gmail.com:smtp.gmail.com:587
Now run
# alternatives --config mta
And choose the number for sendmail.ssmtp, like below
There is 1 program that provides 'mta'.
Selection Command
-----------------------------------------------
*+ 1 /usr/sbin/sendmail.ssmtp
Enter to keep the current selection[+], or type selection number: 1
#
Now send email to your gmail account from Centos cli
# mail -s "Test Subject" glen@gmail.com
Type your message text and on new line press ctrl d to send
---End Use gmail as relay for sending mail
Thursday, March 2, 2017
Centos 7 backing up my NAS
I put the tar in /myraid (my btrfs 8 drive raid10) then copy this off to another machine that then replicates to cloud.
So if my boot drive goes out I have the backup on the array, on another onsite machine, and in the cloud.
tar --exclude='/myraid' --exclude='/proc' --exclude='/sys' -czvf /myraid/nas_backup.tar.gz /
I don't have enough cloud storage to replicate /myraid but I copy the entire /myraid mount to another onsite machine with a raid1. I guess its better than nothing :)
So if my boot drive goes out I have the backup on the array, on another onsite machine, and in the cloud.
tar --exclude='/myraid' --exclude='/proc' --exclude='/sys' -czvf /myraid/nas_backup.tar.gz /
I don't have enough cloud storage to replicate /myraid but I copy the entire /myraid mount to another onsite machine with a raid1. I guess its better than nothing :)
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