ADSM-L

[ADSM-L] TSM 6.1 deduplication is invalid option for disk primary pools

2009-04-29 08:38:50
Subject: [ADSM-L] TSM 6.1 deduplication is invalid option for disk primary pools
From: Grigori Solonovitch <G.Solonovitch AT BKME DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Wed, 29 Apr 2009 15:37:16 +0300
Hello Everybody,
I am testing TSM 6.1 under AIX.
I have tried to enable de-duplication for primary disk pool:
tsm: BKME>upd stg daily_1 dedup=y
ANR2344E UPDATE STGPOOL: The "DEDUPLICATE" option is not valid for device class 
DISK.
ANS8001I Return code 3.
tsm: BKME>
I have been affected too much by this message, because most of our primary 
pools are on FATA disks.
Could somebody explain me why IBM is not able to use de-duplication for device 
class DISK?
What is behind this?
I understand I was reading all available before documentation not enough 
carefully, because I was sure that it is much easier to de-duplicate data on 
disks in comparison with tape drives.
Kindest regards,


Grigori G. Solonovitch

Senior Technical Architect

Information Technology  Bank of Kuwait and Middle East  http://www.bkme.com

Phone: (+965) 2231-2274  Mobile: (+965) 99798073  E-Mail: G.Solonovitch AT bkme 
DOT com<mailto:G.Solonovitch AT bkme DOT com>

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