Yes, you can run them at the same time.  Normally I leave Identify Duplicates 
running all the time, and leave the reclaim for the dedup pool set to 15% so 
that TSM will fire the reclaims as soon as the Identify Duplicates finishes 
with a volume in the pool.

That being said, there is of course a performance impact on the database any 
time EXPIRE INVENTORY is running, so that could impact you if performance is 
already an issue.

Also, I believe the server parm defaults to DEDUPREQUIRESBACKUP YES.
Which means you also need to have your BACKUP STGPOOL completed before the 
identify duplicates will do you any good.

W


-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of 
Robert Ouzen
Sent: Wednesday, September 04, 2013 4:08 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: [ADSM-L] Identifi duplicates question

Hello

I need badly to release space of one of my STG configure with Dedup of Tsm6  
(deduplication on the server side only)

I run identify  duplicates , found a lot of duplicate extents ... my question 
is If I can in the same time to run an expire inventory and after a reclaim stg 
?

My TSM server version is:  6.3.4

Regards Robert