On Oct 19, 2004, at 7:37 AM, Daniel Sparrman wrote:

This is a theoretical scenario only. If the file has been migrated,
normally the reason is that it hasnt been updated, modified or accessed
within a specified time limit. Therefore, TSM(with it's progressive
incremental technology) would never need to backup the file(it hasnt
changed). ...

The primary criterion for TSM backing up a file is whether it yet
exists within TSM backup pool storage: if TSM does not yet have it,
it wants it in its collection.  So, expect a backup, in standard
Incremental processing.

Whether the file in the HSM-controlled file system migrates is also
a control item: the MIGREQUIRESBkup management class parameter
governs this.

   Richard Sims