We have a DELL PowerVault NAS 745N (running Windows Server 2003 edition) which was recently shutdown for a planned power outage. Upon turning on the server and logging back into windows, the Disk1 had a flashing amber light on it. It is configured with RAID 5 and has 4 HD's, 0, 1, 2 & 3 (the other HD's are all set to "Ready" status). The Array Disk 1 initially had a status of "offline" and has since gone to "degraded" for its status. My question is if I can safely take out the Disk1 HD which is "degraded" and then replace with a new HD while the server is on. I have done this before with a "failed" HD (server was on, did a hot swap with the HD) and the RAID5 array was always rebuilt successfully. I'm just not sure if I should follow the same procedure since the HD status is showing "degraded" on the HD which will be replaced. Thanks.