How to set up MegaRAID email alerts under Linux?

Question

I have Ubuntu 10.04 and MegaRAID controller. The only tool I have is the notorious MegaCli. I need to be emailed when some disk has failed in the RAID array. How to set that up?

Solution 1

Create script like:

#!/bin/bash
STATUS=`MegaCli -AdpAllInfo -aALL -NoLog|egrep '^  (Degraded|Failed)'|grep -v ' 0'`;

if [ "x$STATUS" != "x" ]; then
  echo -e "Subject: RAID WARNING @ `hostname`\n\n$STATUS"|/usr/sbin/sendmail [email protected]
fi

and add it to your crontab: https://help.ubuntu.com/community/CronHowto

You also need valid sendmail program on your system, simplest config via ssmtp will be enough thou.

Solution 2

You can get the MegaRAID Storage Manager from LSI, and it can be setup to email you on RAID events (amongst other things, like SNMP).

There's no speicifc Ubuntu version of it, but LSI provides a knowledge base article that explains how to get the "Linux" version working; hopfully it'll work for you, or at least get you going.

Comments

[Henno]

Nice. Do you recommend anything else to grep for, besides degraded/failed disk count?

[Henno]

Like warnings from log. How to get them?

[Henno]

Also, there seems to be a slight problem with the echo command. I get subjectless email with a body of "-e Subject: RAID WARNING @ myhostname"

[Henno]

Postfix. I got it working properly by removing "-e".

[vatsug]

that is weird as coreutils' echo have -e option which enables interpretation of \n and other escape characters: $ echo -e "\n\n\n" will give 4 empty lines but $ echo "\n\n\n" will give "\n\n\n" string as output. Maybe your shell has different version of echo, should have used /bin/bash hashbang, fixing now...