NASLite Network Attached Storage

I setup my NAS box about a year ago and it's been working great until recently. My setup consists of:

LSI MegaRAID 150-6
6 WD 250GB SATA HDD
RAID 5 Configuration
CDD 2.03

A couple weeks ago the alarm went off on the RAID card. I shut down NASLite and rebooted into the RAID BIOS. It said Disk 1 was down. I looked for hardware issues and couldn't find any so I rebuilt the drive and then did a full validation. Everything checked out OK.

Then this week the same thing happened but it said Disk 5 was down. I rebuilt the drive and I'm in the process of doing a full validation again.

I don't think the drives are actually failing since they rebuild and validate just fine. Has anyone seen this behavior before?

-Scott

I've seen this issue with a few different raid cards and the solution to the problem varried.

Once it was a bad drive - and the other four times the power supply was causing the drives to drop off. I'm not sure if the output from power supplies declines with age but it seems that would be the case. After replacing the PSU on the units I worked on the drive(s) stopped dropping off and asking to be replaced or rebuilt.

This may or may not be your issue but it's something fairly easy to test -
Good luck.