From: Dave.Zarnoch@SUNGARD.COM
Date: Wed Sep 04 2002 - 10:21:02 EDT
Folks,
We will be installing some new disk drives into our system
They will be using RAID 5
Here's what the customer suggests:
1.
The limiting variable is # of pp's per hdisk = 1016. Since we have 2 hdisks
in our stripe, we can get 2032. The current pp size is 256mb which allows
for 2032*256mb = 520gb of logical volumes, total. We need almost double
that, so using pp size of 512mb is essential. Using a pp size of 1024mb or
1gb may be better.
The total space for Volume Group vg00 will be 1.1 TB
It will be comprised of 2 hdisks which are striped also.
Which would be better to use?
512MB/PP
1024MB/PP
The data residing on the disk will be db2 databases
Thanks!
Dave Zarnoch
UNIX Systems Administration
SunGard eSourcing
600 Laurel Oak Rd.
Voorhees, NJ 08043
Dave.Zarnoch@sungard.com
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