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Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?

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Old 09-12-2008, 09:44 PM   #1
Sigkill(9)
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Registered: Jan 2005
Location: Dallas/TX
Distribution: OpenBSD/FreeBSD/Debian/Mac OS X
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CentOS 4.3 LInux Raid 1 Losing OS Raid member


Hey folks,

This is strange to me.
I have a software sata raid 1 with two slices.
Real basic stuff.

/dev/md0 = os
/dev/md1 = everything else

Every once in a while /dev/sda1 drops out of /dev/md0.
I add it back and it jams along for a few more months and then suddenly it drops back out.

I don`t get it. /dev/sda2 never has a problem.
I can`t find any physical errors.
Any ideas?

Thanks in advance.

Jerry
 
Old 09-14-2008, 12:01 AM   #2
Electro
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Registered: Jan 2002
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Hard drives can fail from vibrations, power fluctuations, and errors during automatic diagnostics. Other problems like inconsistent data in cache can make drives fail in a RAID array.

/dev/sda2 is just a partition. It could be the partition table is going.

You may want to get an add-on for your controller that uses a Silicon Image 4723 chip that does hardware RAID-1. The following has the chip that should work with your controller and with Linux.

http://www.cooldrives.com/inbaymosaiir.html

If that is not feasible, I suggest activate logging for the controller and mdadm.
 
  


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