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-----Original Message----- date: Fri, 13 Aug 2004 10:49:01 -0500 from: "Jones, John (US)" <John.Jones@xxxxxxxxxxxxxxxxxxxxxxx> subject: RE: More disk arms myth exploded...
I would guess #1: Tape controller. On our 730 using 3580-H23 drives, saves at 70GB/hour over a 6534. On our 830 using the same drive types but a 2729, we get 200GB/hour. The machines have similar RAM, CPW, # disk arms, etc. And really, more than the tape controller it's the SPD bus.
You could also potentially mention the spreading of the data will be optimal on the 520 as it was a reload. But I don't think it would make that large of a difference.
John A. Jones Americas Security Officer Jones Lang LaSalle, Inc. V: +1-630-455-2787 F: +1-312-601-1782 John.Jones@xxxxxxxxxxxxxxxxxxxxxxx
-----Original Original Message----- From: rob@xxxxxxxxx [mailto:rob@xxxxxxxxx] Sent: Friday, August 13, 2004 10:06 AM To: midrange-l@xxxxxxxxxxxx Subject: More disk arms myth exploded...
<snip>
Don't know if it: 1) was the difference between the 6534 and the 2749 card 2) the way we have them configured (do we have the tape card on the
520 not sharing a processor with disk and not the same on the 820?) 3) or the difference between the 520 and the 820
<snip>
Rob Berendt -- Group Dekko Services, LLC Dept 01.073 PO Box 2000 Dock 108 6928N 400E Kendallville, IN 46755 http://www.dekko.com
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