** ADSM DATA Movement/Reclamation Update **

In late January 1998, IBM ADSM development alerted customers to a data
movement/reclamation problem in the ADSM version 3 server.  Updated servers
were made available to prevent the problem by disabling reconstruction of
aggregated files during reclamation processing.  In addition, the development
team committed to provide a set of utilities that could be used to analyze and
deal with files that were affected by the problem. The utilities are in test
and are being finalized, but they are not quite ready for distribution.

Since that time, customers have asked that ADSM development provide a mechanism
to disable file aggregation so that tapes could be fully reclaimed while these
utilities are being developed and tested.  Other problems in the version 3
server have also been corrected, including a rare situation that may affect
non-aggregated files and/or platforms that were originally believed to be
unaffected by the data movement/reclamation problem.  These fixes are ready for
distribution.

An ADSM PTF will be made immediately available for all version 3 servers.  This
PTF contains corrections for all known data movement/reclamation problems,
other corrective fixes that have been awaiting delivery to customers, and an
option that will allow customers to temporarily disable file aggregation so
that tapes can be better reclaimed.  IBM ADSM development strongly recommends
that all version 3 customers apply this corrective service immediately.  This
action will minimize the amount of work that may be required to analyze and
recover from the data movement/reclamation problem when the utilities are made
available.

We are continuing to refine and test the promised utilities and apologize for
the delay in delivering them to you.  The next PTF for all servers will contain
the utilities and is expected early in the second quarter.


ADSM  Server Development