Per the disclaimer in the paper, "performance results obtained
in other operating environments may vary significantly" ....
Variables outside the tape subsystem were intentionally held
constant to demonstrate drive performance under a TSM workload.
By making all other things equal and eliminating LAN-related
variables, these results can 'reasonably' be considered as a
fair representation of tape drive performance ......
The conclusion was that
(a) IBM employs accurate and unbiased performance
measurements of its drives and those of its competitors
(b) performance of IBM tape drives is markedly better than
other drives in their classes
(c) 3590E and 3580 LTO performance is important for sites
with a tape subsystem that includes TSM.
Of course, YOUR actual mileage CAN vary ...... significantly!
-Ray
-----Original Message-----
From: sal Salak Juraj [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, May 02, 2001 8:54 AM
To: [EMAIL PROTECTED]
Subject: AW: LTO Tape Drive Performance
Thanks!
Interesting reading, however, with limited usablility scope.
This tests vere optimised highest throughputs / streaming
(fair over all technologies, but for this single task only),
while many of us will cope with lower throughputs because of sets of smaller
files, network limitations etc. In such environments can tape technologies
tested compare quite different.
regards
Juraj salak
-----Ursprüngliche Nachricht-----
Von: Dmochowski, Ray [mailto:[EMAIL PROTECTED]]
Gesendet am: Freitag, 27. April 2001 15:06
An: [EMAIL PROTECTED]
Betreff: LTO Tape Drive Performance
To all ....
A "new" performance paper by Progressive Strategies is posted on the Tivoli
site -
SEE ANALYST REPORTS:
Tape Drive Performance Comparisons-Using Tivoli Storage Manager
http://www.tivoli.com/products/solutions/storage/storage_related.html
Ray Dmochowski
Schering-Plough Research Institute
Kenilworth, NJ 07033, U.S.A.
(908) 740-3261
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