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11120 - Faster Tape drive
ROGBILLS - Synchronize billing plans ABAP Short ReferenceThis documentation is copyright by SAP AG.
Faster Tape drive
A 3570 Model C is rated at:
7MB per second native 15MB per second compressed
19 seconds to date in a load and search scenario.
An IBM Ultrium drive is rated at 15/30MB per second with 95 seconds to data.
A 3590 model E is rated at 14/42MB per second and between 53 and 83 seconds
to the data dependent on the tape cartridge used.
All of these numbers are subject to speculation as a number of factors are
at play, the speed of the controller, the available resources of the AS/400,
the data being backed up etc. however they do allow for a baseline for
comparison purposes.
Hope this helps.
J.J. Pudenz
Advantage International Systems
Midrange Sales Executive
jjpudenzZadvgroup.com
Ph: (800)579-9273, Fax: (480)635-8608
Website: www.advgroup.com
Note: This communication is confidential and its contents should not be
disclosed to persons other than those to whom its addressed.
-----Original Message-----
From: Lehnardt, Franz [mailto:franz.lehnardtZunielektro.de]
Sent: Thursday, August 28, 2003 7:12 AM
To: DoNotReply@consolut.eu
Subject: AW: Faster Tape drive
Hello Crosby,
I don't know the power of a model 3570 C, so I can't compare, I only can
tell you our backup parameters.
Our database resides on a model 730 (V5R1M0) as well, its actual size is
about 835 Gb.
We have connected two tape drives 3590 E on two 6534 adapters.
We run a parallel backup of database every night which takes app. 7,25
hours.
This means a through put of 57,5 Gb per hour per drive.
During the backup we have batch activity on the machine, so I expect the
backup could be faster if running alone.
Hope it helps.
Best regards,
Franz Lehnardt
AS/400 Administration & SAP R/3-Basis Support
UNI ELEKTRO
D-65760 Eschborn
-----Ursprüngliche Nachricht-----
Von: Crosby Sinclair [mailto:csinclaiZthomsonmail.com]
Gesendet: Donnerstag, 28. August 2003 15:48
An: DoNotReply@consolut.eu
Betreff: Faster Tape drive
Hello everyone,
I'm currently running a AS400/730 V5R1M0. Our backup is running a bit long
and I was given the task of finding a faster tape drive. Does anyone out
there know of a faster tape drive than the 3570 C model, also does anyone
know the transfer rate or through put for the 730 e-series please let me
know, any help will be gravely appreciated.
+================================+
Crosby Sinclair
Basis/AS400 Administrator
Danaher Motion
Makers of Thomson Products
Internet: www.Danahermotion.com
E-mail: Crosby.SinclairZDanahermotion.com
Phone (516) 883-8000 Ext 1337
Fax (516) 944-7505
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