STABLE-201605240427 - smartd support for NVME disks

[Borja Marcos]

Hi

I´ve installed FreeNAS on a SuperMicro with 10 Intel P3500 NVME disks to do some tests.

I´ve seen that this version includes an updated version of smartmontools with NVME support. Unfortunately smartd doesn´t work out of the box due to a configuration problem.

The smartd.conf file generated by the system is:

Code:

################################################
# smartd.conf generated by /etc/ix.rc.d/ix-smartd
################################################
/dev/nvd0 -a -n never -W 0,0,0 -m root -M exec /usr/local/www/freenasUI/tools/smart_alert.py
/dev/nvd1 -a -n never -W 0,0,0 -m root -M exec /usr/local/www/freenasUI/tools/smart_alert.py
/dev/nvd2 -a -n never -W 0,0,0 -m root -M exec /usr/local/www/freenasUI/tools/smart_alert.py
/dev/nvd3 -a -n never -W 0,0,0 -m root -M exec /usr/local/www/freenasUI/tools/smart_alert.py
/dev/nvd4 -a -n never -W 0,0,0 -m root -M exec /usr/local/www/freenasUI/tools/smart_alert.py
/dev/nvd5 -a -n never -W 0,0,0 -m root -M exec /usr/local/www/freenasUI/tools/smart_alert.py
/dev/nvd6 -a -n never -W 0,0,0 -m root -M exec /usr/local/www/freenasUI/tools/smart_alert.py
/dev/nvd7 -a -n never -W 0,0,0 -m root -M exec /usr/local/www/freenasUI/tools/smart_alert.py
/dev/nvd8 -a -n never -W 0,0,0 -m root -M exec /usr/local/www/freenasUI/tools/smart_alert.py
/dev/nvd9 -a -n never -W 0,0,0 -m root -M exec /usr/local/www/freenasUI/tools/smart_alert.py

However, smartmontools don't access the pseudo-disks (/dev/nvd?) but the NVME controllers (/dev/nvme?).

Replacing the nvd entries by nvme works. And indeed smartctl requires a nvme device.

Code:

[root@freenas] ~# smartctl -H /dev/nvd0
smartctl 6.5 2016-05-07 r4318 [FreeBSD 10.3-RELEASE-p3 amd64] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org

/dev/nvd0: Unable to detect device type
Please specify device type with the -d option.

Use smartctl -h to get a usage summary

[root@freenas] ~# smartctl -H /dev/nvme0
smartctl 6.5 2016-05-07 r4318 [FreeBSD 10.3-RELEASE-p3 amd64] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

However, so far I don't know how to map nvd? devices to nvme?. I don't know if the number is conserved or, at some point, they can be shuffled.

 

[dlavigne]

However, so far I don't know how to map nvd? devices to nvme?. I don't know if the number is conserved or, at some point, they can be shuffled.

Join the club: https://bugs.freenas.org/issues/15534.

 

[Borja Marcos]

Join the club: https://bugs.freenas.org/issues/15534.

Aha, sorry. :)

I've added a comment then. I wasn't aware of this lack of visible association between the nvme namespace and the nvd disk until I tried smartmontools.