RE: adding disks

["Chris Bipes" <chris.bipes@xxxxxxxxxxxxxxx>]

A word of caution:  Since these disk are twice the size, they will get
twice the activity.  With them being the same speed as the other drives
in your system, this could cause performance issues based on your
current disk work load.  Other than that, it is do able.  I would
however, remove 5 of the older 35 GB drives before you fill up the
space, leaving room to add another 5 70GB drives.  I would continue this
pattern until all are at 70GB.  This is of course if you don't have the
performance issues I mentioned earlier. 

Chris Bipes
Director of Information Services
CrossCheck, Inc.

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Dave Snyder
Sent: Tuesday, February 26, 2008 10:55 AM
To: Midrange Systems Technical Discussion
Subject: adding disks

We have a 520 at v5r3. We have 27 - 35gb (4326) disk units currently
installed, using raid. Looking at installing 5 new 70gb (4327) units,
into empty slots - not replacing any of the 35gb drives. I realize I
will need to put them in a new raid set because of the size difference.
All will be used in same ASP. Am I missing anything else? Does it sound
logical what I am attempting?