Thanks to all who responsed to my posting. I received too
may to list individually.
It seems that I can only delete drive groups in reverse
order, so I would have to delete my 20gb RAID 5 (group B)
before deleting the JBOD (group A). I thought this would
destroy my data on group B, but several responses said that
they had done this successfully if the recreate group B
EXACTLY as before. I also got a call back from Compaq telling
me the same.
I also received several messages (and a phone call) telling
me that I would destroy the data on that RAID 5 once I delete
the group.
Since this is an important machine (aren't they all?) I will
have to try this on a slow day (read that as "I'll be doing
it on a weekend"). I was also warned to have a full backup
handy, "just in case."
Thanks again to everyone that responded. I'll send out a
followup to let you know what really happens when I actually
try this.
Original posting:
> Hello all,
>
> I am waiting for a callback from Digital (Compaq), so I thought I'd
> send this off here too.
>
> Here is my configuration:
>
> alpha 2100
> DU 4.0b
> StorageWorks 230
>
> On one controller, I have a JBOD in slot 0 and slots 1-6 make up a
> RAID 5. I want to change the JBOD, which is a 2gb disk, with a 4gb
> disk. I shutdown the machine, swapped the disks, and started swxcrmgr.
> The system still saw it as a 2gb disk. I tried to delete that group,
> but it only lets you delete the last group created (which is my 20gb
> RAID 5 group - I'd rather not do that).
>
> I tried using the diskconfig utility, but it only recognized it as a 2gb
> disk. When I use disklabel, it complains about overlapping partitions when
> I try to write it.
>
> I'm not sure if autoconfig is what I want to do or not. I really don't want
> to take a chance of losing the data that is on the RAID 5 (retrieving from
> tape would take too long).
>
> If anybody has any suggestions, I would appreciate hearing them.
>
--
Robert Morse
System Administrator
American Mathematical Society
401 455 4162
Received on Wed Dec 02 1998 - 18:01:31 NZDT