I am really new to RAIDs and all that goes along with them.
I simply added a disk (same 500mb size and part number) into the MSA60 raid enclosure and basically everything started going wrong. The raid 5 (3 hds) crashed and subsequently all the VMs running on that raid stopped working.
I was under the impression that you could add disks at runtime, thats what all this hot swap business was about?
Its a MSA60 running off a P800 raid controller in a HP DL380 G5. Windows Server 2008 r2
The machine reboots and sees the disk ok
So my question - When adding a disk to an existing raid, or to a raid enclosure to create a NEW raid, do you need to power down the machine to do so?
MORE INFO - 19/06/2012
I found another couple of disks and tried those in the machine. Same thing happened. The raid just slowly, over the span of around 5 mins, ground to a halt.