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starnix
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Joined: 02 Mar 2003
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PostPosted: Mon Nov 15, 2004 1:52 am    Post subject: Raid5 health Reply with quote

So how exactly does one monitor the health of a raid array. I was just putzing around in Webmin tonight and found a monitor for the raid array and when I set it up it is telling me that a Bad disk is detected. I havent noticed any degradation of performance. Is there any way to verify that what webmin is saying is correct?
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bombcar
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Joined: 08 Apr 2003
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PostPosted: Mon Nov 15, 2004 2:39 am    Post subject: Reply with quote

I assume you're using an MD RAID 5, so type

Code:

cat /proc/mdstat


and see what it tells you. You can also do a dmesg.

If it is a hardware RAID controller, there are other things you can do.[/code]
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Lajasha
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PostPosted: Thu Dec 09, 2004 3:21 pm    Post subject: Reply with quote

Kinda late but you may walso check into mdadm tools, it has a daemon mode that will email you if there is an issue too.
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gringo
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PostPosted: Thu Dec 09, 2004 4:16 pm    Post subject: Reply with quote

maletek wrote:
Kinda late but you may walso check into mdadm tools, it has a daemon mode that will email you if there is an issue too.


yes, mdadms interface is quite nice, and i think running some smart monitoring programm to check the drives status is a good idea too.

cheers
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