Hardware Thread, RAID controller drive drop out weirdness in Technical; We have an RM Server fitted with an LSI MegaRAID SAS 830ELP controller. There are 4 drives, 3 configured as ...
18th July 2013, 06:02 PM #1
- Rep Power
RAID controller drive drop out weirdness
We have an RM Server fitted with an LSI MegaRAID SAS 830ELP controller. There are 4 drives, 3 configured as a RAID5 and one global hotswap.
Last week the controller started beeping, we looked at the logs and the drive in slot 0 come up as: Foreign (Unconfigured) Good. While we investigated I swapped the drive with an identical spare. We tested the drive which dropped out using chkdsk and it came back fine so we configured it as a global hot spare in slot 3.
This week the new replacement drive in slot 0 has come up as: Foreign (Unconfigured) Good and the hot spare has jumped in to action.
I've taken the side off the server to see if there are any cables to slot 0 but it's all plugged directly in to a daughter board in the front and a single chunky cable going to a PCI type slot at the back.
I don't really want to think it, but if it happens one more time in my mind I'm going to have to buy a new RAID controller and rebuild the server.
Before it happens though, has anyone got any suggestions or other things to check?
Also, will I have to rebuild the server from backups or is there a non destructive method?
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18th July 2013, 09:14 PM #2
Any firmware updates available for the LSI?
You also need to see if there are any S.M.A.R.T predicted errors as they may be causing problems.
I would be looking at getting a new host and P2Ving the server
19th July 2013, 03:59 PM #3
- Rep Power
I'll make a note of the firmware version when I'm over there next week and see what the LSI website reckons.
As much as I'd like to buy a couple of new servers and P2V them, my main project at the moment is trying to find the money to get on to W7.
19th July 2013, 04:21 PM #4
SATA desktop drives?
Enterprise and Near Enterprise drives support Time-Limited Error Recovery ("TLER") Desktop drives do not.
As a non-TLER HDD fills up with data, the error detection firmware might take too long, and the RAID controller may drop that HDD from a RAID array.
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