We have a few servers where the TSM GUI estimates nearly 3.5 days
to restore all the files. We're talking now about getting something
like a JBOD as an additional copypool (is that the right term?). The
data flow would be node->storage pool->tape pool
                                     ->JBOD copy pool.

The JBOD copy pool would self-expire after 3 days (depending on how
much is actually stored to the JBOD.

With the nightly backups copied to the JBOD, would this help/speed
up a catastrophic restore (catastrophic of the node, not of TSM)?

Is anyone doing this?

Mike