Loyd,
You are on the right track. It's an iterative process. Done from
DST.
You have to break the RAID set, and then you will have some more
room. Then remove one of the drives from the ASP. Now you remove that
drive from machine, and insert your new empty clean drive. You then boot up
to DST and copy the load source to this new 70GB drive. When done, you
bring machine down, swap the new drive with the old load source (now the 70
is part of ASP1), and install another new drive in the empty slot. Add the
new 70GB drive to ASP1 and then you remove more of the 35GB drives (as many
as you can). When this is done, you remove the old drives, put in new drives
and add to ASP1. Do this until all 35GB drives are removed and all 70GB are
in ASP. At that point you start RAID protection.
I always do this during a System maintenance window.
Don't forget a STRASPBAL after all is done.
Pete Massiello
http://www.itechsol.com
-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
lgoodbar@xxxxxxxxxxxxxx
Sent: Wednesday, July 02, 2008 1:15 PM
To: midrange-l@xxxxxxxxxxxx
Subject: DASD swap on 810?
We are in the high 80% range, and I am exploring options to replace the
current drives in our 9406/810. Currently, all 6 slots are occupied with
35GB (model 4326) disk units, under RAID parity protection. I'd like to
replace them with 70GB units.
I know we can break the RAID, offload a drive, and remove for a larger
unit. Can this be done while the system is active (i.e. not restricted
state or DST)? We've done concurrent maintenance for drive replacements,
but am unsure for this type of swap. Obviously we would do a full system
save before and after this operation.
How is the load source handled in this scenario?
Since we have so little free space, we would need to swap one drive,
then another. The third round we should be able to swap two drives, then
two more.
Advice and RTMs appreciated.
Loyd Goodbar
Business Systems
BorgWarner Shared Services
662-473-5713
midrange.com
