RE: New 520+ Shipment

["Jones, John \(US\)" <John.Jones@xxxxxxxxxx>]

Our production box has 54 70GB 15K disks (3.1TB/RAID5).  Our DR box has
fewer arms (42) but more capacity (5TB/RAID5) as the 140GB 15K disks had
become available when we bought it.  I only spec the fastest spindle
speed disks that are available which is why I avoided the 300GB 10K
disks.

Our dev LPAR has the 6 140GB 15K disks in the 570 CEC with the
small-cache RAID card.  It runs RTVDSKINF about 1.5 times faster than
the 830 it replaced; the 830 had 62 17GB 10K arms.

John A. Jones, CISSP
Americas Information Security Officer
Jones Lang LaSalle, Inc.
V: +1-630-455-2787 F: +1-312-601-1782
john.jones@xxxxxxxxxx

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of rob@xxxxxxxxx
Sent: Wednesday, July 12, 2006 3:39 PM
To: Midrange Systems Technical Discussion
Subject: Re: New 520+ Shipment

our production lpar has 74 - 70GB drives in it.  Been with 70GB drives
for 
a few years.  We dropped from 42 arms down to 7 with these new drives, 
etc, on our development lpar and got much better performance.

Rob Berendt