Re: [cobalt-users] Raq4 - Help - Anyone replaced a hard drive?

["Gerald Waugh" <gerald@xxxxxxxxx>]

> 1. The disk in the RaQ (Seagate ST330621A 30gb) is no longer available,
> Seagate have replaced it with an update model.  And over 20 suppliers here
> in the UK do not have the old one on their shelves.  So it means getting
> another drive, by another manufacturer.  Has anyone else done this, and have
> they done this with a RaQ4r RAID?  What if the new drive is slightly smaller
> than the existing drive?
>
> 2. What will happen with the RAID when the box is switched back on again?
> Should I swap the disks around so that the working Secondary drive is put in
> the primary slot and the new drive is put in the old secondary slot.  Or
> should the new drive go in the Secondary bay.  I don't want the RAID to
> think that the formated drive is the one to copy over the broken one.  What
> about partitioning the new drive or formating it?  Does this need to be done
> before installing?
>
OK, my active monitor Disk Integrity (RAID) says:
The right hard drive has failed. Please shutdown the RaQ and replace this drive
with a new, identically sized one. The failed drive is located on the right of
the RaQ when facing the blue plastic front of the server.
Notice the "identical size"
But there's more to the story!
I rebooted (aggh) and active monitor gave me the same story!

So I did vi /var/log/dmesg
And look what I found!!!
The bootup script mounted the drives as hdb and hdc
And found nothing wrong with them.

hdb: ST320423A, 19536MB w/512kB Cache, CHS=39693/16/63, UDMA(33)
hdc: ST320423A, 19536MB w/512kB Cache, CHS=39693/16/63, UDMA(33)

raid1: device hdc1 operational as mirror 1
raid1: device hdb1 operational as mirror 0
raid1: device hdc3 operational as mirror 1
raid1: device hdb3 operational as mirror 0
raid1: device hdc4 operational as mirror 1
raid1: device hdb4 operational as mirror 0
raid1: device hdc6 operational as mirror 1
raid1: device hdb6 operational as mirror 0

Apparently the Cobalt software thinks hda is bad!!!
So active monitor says the hda drive is bad!!!
But Raid mirroring is working on hdb and hdc.

I mounted hdb and hdc to look at them and indeed they are the same and both are
working fine

Gerald