I have a server that has two RAID1 arrays. In other words, 4 SATA drives make up 2 windows volumes. (C: and D:). D: is the data volume, and is 70 GB, and the other volume is 30 GBs (or so).
This server randomly freezes and I have been trying to understand why. I went to replace the RAM and after shutting down and unplugging it, and swapping the RAM, then re-booting, the RAID status screen displayed a critical message the 70 GB data RAID array was only operating on one drive! The client had said that this happened before when the server would freeze, but not EVERY time the server froze. After the OS booted (win2003 server), everything looked good, and I looked at the RAID status utility and the data (70 GB) RAID1 was rebuilding and was at 20%. I have never seen behavior like this before.
As you can probably guess by now, the new RAM did not fix the freezing, and so now I am left wondering if it’s hardware or software related. When the server was being built, it ran fine for several days before being put into a production environment, so the possibility of a memory leak from an app is there, but I wanted some insight regarding the RAID1 being “dirty” only after a RAM swap out.
Could this mean that there is a problem with a drive, or the RAID controller? The SATA drives are in a hot-swap “bay” with a hot-swap backplane (Intel components).
Has anyone run into this?
Thanks in advance for any help in this matter.