Brad,

The first question that you should ask the potential customer
is if they are referring to storage group (database level)
backup and restore or mailbox/item level backup and restore.
It is a very imporant distiction that should be clarified
with the customer first.

For full storage group (database level) backup and restore,
Data Protection for Exchange uses the standard backup and
restore APIs. That means it handles Single Instance Store (SIS)
because it is built into those APIs. That is, Single Instance
Store is preserved.

If the question is referring to mailbox/item level
backup and restore, the answer is different. The IBM documented
solution using ExMerge and the TSM BA client does
not preserve the single instance store.

However, please look at previous discussions on this list server
about mailbox/item level backup and restore and ways to
set up your Exchange environment to avoid it.

Thanks,

Del

----------------------------------------------------

> Management has given me a questionnaire from a 'potential TSM customer'.
One
> of the questions was how TSM handles Exchange SIS (Single Instance
Storage)
> backup and recovery. I have looked through the documentation on TSM
Exchange
> client, Redbooks, and ADSM Archive, and have not found anything. My
> question: is there anything special about SIS? Backup? Recovery? Some
place
> I can find documentation?
> TIA!