I'm sure I probably know the answer to this question, and am just looking for some reassurance!
We have a Dell PE2950 with a RAID-1 (2 x 300GB) for the OS and a RAID-5 (4 x 300GB) housing some SQL data. Disk 0 in the RAID-1 configuration has failed, with the Virtual Disk showing as 'Degraded' in OMSA and the physical disk showing as 'Failed'.
If it were one of the disks in the data-housing RAID-5, I would quite happily wander into the server room, take the drive out and replace it with a new one, and wait for it to rebuild. However, I'm getting a bit jumpy with the idea of pulling one of the OS disks (and for some reason, the fact that it's 'Disk 0' adds to that, even though I know it makes no difference if it's Disk 0 or Disk 3..).
Is there anything I should be aware of, or is it simply a case of pulling the disk out and replacing it while the server's running? I presume the OS won't be writing to that disk since it's failed?
Any advice would be appreciated!