On May 6, 2008, at 5:24 AM, Aree Hagopian wrote:

Hi All,

I'm performing a restore and find that the file ownerships are not
restored
correctly.
Someone chown'ed all the files recursively yesterday so I want to
restore
to a new location and used the restored files to recover the correct
ownerships. ...

You've just come upon a shortcoming of the product, where you can't
achieve what you might think would be possible.

Only if file attributes are stored with each instance of a backup
would it be possible to restore the attributes to some point in time.
That is possible in Windows backups, and where Unix ACLs are employed,
such that the info is written to a storage pool; but not with ordinary
Unix files, where there is a single, latest instance of those values,
in the TSM database.  This is a trade-off, where Unix backups and
restorals can be much faster than Windows, but at the price of not
being able to go back in time for the attributes.

   Richard Sims    http://people.bu.edu/rbs/