Monitoring Dell SAS 5/iR RAID with nagios
The Dell PERC/5 shows like this under 'lspci'
07:08.0 SCSI storage controller: LSI Logic / Symbios Logic SAS1068 PCI-X Fusion-MPT SAS (rev 01)
Subsystem: Dell SAS 5/iR Adapter RAID Controller
The status of this RAID card can be read using mpt-status, in Gentoo this package is available as sys-block/mpt-status. Here's an example of the output:
# mpt-status ioc0 vol_id 0 type IM, 2 phy, 148 GB, state OPTIMAL, flags ENABLED ioc0 phy 1 scsi_id 32 ATA WDC WD1600JS-75N 2E04, 149 GB, state ONLINE, flags NONE ioc0 phy 0 scsi_id 1 ATA WDC WD1600JS-75N 2E04, 149 GB, state ONLINE, flags NONE
The latest 'check_mpt' script can be found on Nagios Exchange. Download it and put it in your libexec folder, for me on gentoo its '/usr/nagios/libexec/'. Open the file, and make sure the 'use lib' line points to the correct place.
The script uses sudo to run mpt-status, so you'll need to modify your /etc/sudoers - adding a line like this:
%nagios ALL=(ALL) NOPASSWD:/usr/sbin/mpt-status
Next, you need to configure nagios, your filenames might be different from the names I use below.
/etc/nagios/commands.cfg : Note, the -c param refers to the number of disks you expect to be active.
define command{
command_name check_mpt
command_line $USER1$/check_mpt -c 2
}
/etc/nagios/localhost.cfg
define service{
use local-service
host_name localhost
service_description mpt - Dell Raid
check_command check_mpt
}
Reload nagios, on gentoo, it's /etc/init.d/nagios reload
See also: Monitoring PERC 4e over SNMP with nagios
skinning nagios – nagios doesn’t have to be ugly!
Nagios can be pretty, and several people I've told this too seemed surprised, so I thought I'd put a quick note here. Here is a nice theme for nagios....
http://new.nagiosexchange.org/cgi-bin/page.cgi?g=Detailed%2F1723.html;d=1
Unfortunately, the underlying UI is still the same horrible interface, but.... this does make a big difference to the aesthetics 