Suse RAID Controller Monitoring

ssyfrig · Post by **ssyfrig** » Mon 6. Feb 2006, 19:38

Hi

I have a root Server. This Server does running Suse on a PC/Server with a Raid Controller.

Now I searching for a Monitoring and Notification Software witch send me an E-Mail if one Disk failed.

Anybody can help me?

Thanks, Sven

DeXXus · Post by **DeXXus** » Mon 6. Feb 2006, 20:31

http://www.linux.com/howtos/Software-RAID-HOWTO-6.shtml

Monitoring RAID arrays
You can run mdadm as a daemon by using the follow-monitor mode. If needed, that will make mdadm send email alerts to the system administrator when arrays encounter errors or fail. Also, follow mode can be used to trigger contingency commands if a disk fails, like giving a second chance to a failed disk by removing and reinserting it, so a non-fatal failure could be automatically solved.

Let's see a basic example. Running

mdadm --monitor --mail=root@localhost --delay=1800 /dev/md2

should release a mdadm daemon to monitor /dev/md2. The delay parameter means that polling will be done in intervals of 1800 seconds. Finally, critical events and fatal errors should be e-mailed to the system manager. That's RAID monitoring made easy.
Finally, the --program or --alert parameters specify the program to be run whenever an event is detected.

Note that the mdadm daemon will never exit once it decides that there are arrays to monitor, so it should normally be run in the background. Remember that your are running a daemon, not a shell command.

Using mdadm to monitor a RAID array is simple and effective. However, there are fundamental problems with that kind of monitoring - what happens, for example, if the mdadm daemon stops? In order to overcome this problem, one should look towards "real" monitoring solutions. There is a number of free software, open source, and commercial solutions available which can be used for Software RAID monitoring on Linux. A search on FreshMeat should return a good number of matches.

http://freshmeat.net/search/?q=Monitor+ ... 15&Go.y=15

http://freshmeat.net/search/?q=Monitori ... 14&Go.y=11

http://www.google.com/search?num=50&hl= ... re+utility

ssyfrig · Post by **ssyfrig** » Mon 6. Feb 2006, 23:28

Hi DeXXus

Thanks for your Input .. also the google link

at the moment I try the SMART solution...

Sven