NAS goes offline for no apparent reason

[KenIzzo]

I've successfully setup putty and removed all the snapshots and snapshot configs. So far so good . . .

What can I do to check the integrity of the RAID and the physical drives? I think I have a bad drive in the array - the 3Com array controller says it's a 5 drive array but only 4 are listed. One of the drive bays has a green light that's on all the time, which I suppose is the bad drive. I'm not familiar with this type of hardware - how do I check if the drive is bad and what do I do to replace it?

Thanks for all your help!

Ken Izzo
Montgomery Truss

[To-M]

Not knowing the type of RAID controller from 3Ware but you can go here to there website and or ask there Forum users there but I believe it is a function to perform a RAID Verify.

http://www.3ware.com/support/downloadpage.asp

[symm]

hey ken

can you download the system log files and post the end of dmesg.2 and critical error file.
if there is a bad drive it should show there.

[KenIzzo]

I found the problem - 5 drive array only had 4 functioning drives and has been degraded. Swapping in a new drive doesn't fix the problem, so there must be another hardware issue somewhere. The 9550 controller is obsolete so 3ware is not providing much support for it. The unit is old enough to warrant complete replacement, if I can convince the powers that be here that it's cheaper in the long run.

I'll be doing complete backup on that server today - I just hope it doesn't fail before I can replace it.

Thanks for all of your help! It is greatly appreciated! I have to say that this is the BEST forum experience I have ever had. Keep up the great work!

Best regards,

Ken Izzo
Montgomery Truss

[To-M]

Glad you are getting it resolved and thanks for the comment as we try to help as bast we can to make sure that you are working. You should look into the DSS V6 and do some replications to so if this happens again you will be able to still continue.

[KenIzzo]

Todd,

I finally got the RAID array to an OK state, but have not restarted the NAS as of yet. If I log on to the Open-E GUI for the NAS, it tells me there is no logical volume (which is what it was doing when the array was degraded). Should I restart the NAS now that the array is good? Will that bring the logical volume back on line?

Thanks for your help!

Ken Izzo
Montgomery Truss & Panel, Inc

[To-M]

Yes, try to restart and if that does not work try the Repair fileystem and check to see if you can set it as the Default Volume Group in the Extended tools as well.