Grigori,
TSM can only dedup on devicetype FILE. As to why? Well, because new
features are only implemented on devicetype FILE. That was a desicion
made a few years back. Eventually, with TSM server version 7 or 8 or
maybe when we're all long gone deviceclass DISK will be removed....
On 29 apr 2009, at 14:37, Grigori Solonovitch wrote:
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>
Please consider the environment before printing this Email
Please consider the environment before printing this Email.
________________________________
"This email message and any attachments transmitted with it may
contain confidential and proprietary information, intended only for
the named recipient(s). If you have received this message in error,
or if you are not the named recipient(s), please delete this email
after notifying the sender immediately. BKME cannot guarantee the
integrity of this communication and accepts no liability for any
damage caused by this email or its attachments due to viruses, any
other defects, interception or unauthorized modification. The
information, views, opinions and comments of this message are those
of the individual and not necessarily endorsed by BKME."
--
Met vriendelijke groeten/Kind regards,
Remco Post
r.post AT plcs DOT nl
|