smartd with LSI MegaRAID controller

[Deyan Donovski]

build: FreeNAS-9.10.2-U1 (86c7ef5)
The server was installed with RAID turned on. Can't go back now.
smartd is turned on and enabled on the disk device FreeNAS can see (RAID volume /dev/mfid1) the GUI.

smartd.conf is automatically generated:

~# cat /usr/local/etc/smartd.conf
################################################
# smartd.conf generated by /etc/ix.rc.d/ix-smartd
################################################
/dev/mfid1 -a -n never -W 0,0,0 -m root -M exec /usr/local/www/freenasUI/tools/smart_alert.py


smartd doesn't start because there is no SMART capability through this device file:

~# smartctl -i /dev/mfid1
smartctl 6.5 2016-05-07 r4318 [FreeBSD 10.3-STABLE amd64] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org

/dev/mfid1: To monitor disks on LSI RAID load mfip.ko module and run 'smartctl -a /dev/passX' to show SMART information
Please specify device type with the -d option.

Use smartctl -h to get a usage summary


SMART is available on the pass-through devices:

~# smartctl -i -d sat /dev/pass1
smartctl 6.5 2016-05-07 r4318 [FreeBSD 10.3-STABLE amd64] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family: Hitachi/HGST Ultrastar 7K4000
Device Model: HGST HUS724040ALE640
Serial Number: XXXXXXXXXXXXXXXXX
LU WWN Device Id: 5 000cca 23dc6c890
Firmware Version: MJAOA580
User Capacity: 4,000,787,030,016 bytes [4.00 TB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Rotation Rate: 7200 rpm
Form Factor: 3.5 inches
Device is: In smartctl database [for details use: -P show]
ATA Version is: ATA8-ACS T13/1699-D revision 4
SATA Version is: SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Thu Jul 27 15:28:41 2017 CEST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled


The pass-through devices are not visible in the GUI so I don't see a way to configure SMART for these devices there (the preferred way) and
have the config stored in the configuration database.
Editing smartd.conf directly makes no sense since it will be overwritten on the next restart.

The only reasonable work-around I see is to add a post-init script that will overwrite smartd.conf and start smartd.

Any other ideas/advices?

 

[Ericloewe]

The solution is to not use hardware RAID.

 

[SweetAndLow]

Yep solution is to just delete everything and start over. You mention it's too late to start over but it will happen anyways when your pool gets corrupt from the raid card.

Sent from my Nexus 5X using Tapatalk