[BBLISA] PE2950, RAID 0, failed disk

[John Stoffel]

Scott> I have a Dell PowerEdge 2950 with PERC 5/i, and 6 disks.  Two
Scott> disks have one logical volume via a hardware RAID 1 and consist
Scott> of CentOS 5 64-bit; the remaining four comprise a logical
Scott> volume via a hardware RAID 0, and is all user data.

Umm... you know that RAID0 doesn't offer *any* data protection, right?
In this case, you may as well goto your backups since you're toast.

Scott> One drive on the RAID 0 went bad.  I removed it while the
Scott> system was on, tried a reboot, and the system hangs at RedHat
Scott> Linux... Starting

It would probably time out eventually...

Scott> I tried to boot from a Fedora 8 CD, which sees the boot drives
Scott> fine, but not the RAID 0 partitions.

Sure, you broke it even more when you removed the disk.

Scott> Visiting the PERC controller setup claims the RAID 0 volume is
Scott> unavailable, or something similar, though it is defined, with
Scott> one of the disks labelled as missing, since I removed it from
Scott> the system.

Scott> How do I get the partitions on the RAID 0 setup back?  I have
Scott> some of the data, but need the rest, if possible, and the
Scott> remaining three disks appear physically healthy.  I'm also
Scott> going to work with Dell for some answers, and I've done a lot
Scott> of googling.

You're toast.  Goto backups...