Yes, but you will lose the de-dupe.
So, no the TSM DB keeps track of all the expanded data just as always.

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Mehdi Salehi
Sent: Tuesday, November 03, 2009 9:34 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: [ADSM-L] Restoring dedupped-backup from VTL

Hi,
If a TSM server is configured to use a TS7650 as lan-free storage pool,
can I migrate these de-duped virtual tapes to a traditional tape library
to save VTL disk space? If yes, what happens if I need to restore them
later? I mean, do I need TS7650 to re-generate original data from
de-duped version when restore is required in TSM?

Thanks

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