I have a Dell PowerEdge 2900 Server. The primary drive array has three drives and it is RAID 5. The system came this way, and it has been humming along for quite a long time. Recently, one of the drives became degraded and the light on the drive flashes the green and amber light. The amber light, I assumed, means that there is a problem with the drive and it needs to be replaced.
So, I found a replacement drive on Amazon.com and installed it (the drive is hot swappable, but I cold booted to be safe). I installed the drive, but the green and amber light is still flashing. How will I know if the RAID is being rebuilt? I have a hunch that nothing is happening but I don't know how to confirm that.
By the way, this is a VMWARE ESXI server so this is also the operating system I am running.