ADSM-L

ADSM EXPORT enhancements

1994-12-06 13:31:59
Subject: ADSM EXPORT enhancements
From: Greg Tevis <gtevis AT VNET.IBM DOT COM>
Date: Tue, 6 Dec 1994 11:31:59 MST
ADSM development is redesigning EXPORT processing to eliminate the
current sort algorithm.  The current sort step is very long running,
is CPU intensive, and utilizes the database heavily.  Other methods
will be used to perform the export and to reduce database utilization
during export processing.

The redesign is being finalized and still needs to be formally tested.
Early tests show very encouraging performance improvements.  This
work is being done under APAR PN64487 and will be made available
to all ADSM servers.  It is tentatively scheduled to be made available
in a January PTF.

The new EXPORT design has several advantages.
1.  EXPORT processes run more quickly.
2.  Fewer CPU cycles are needed.
3.  ADSM database access is minimized to further improve performance
    and to lessen impact to other server processes.
4.  Ordering of files is still achieved to minimize tape mounts.


Colin Dawson - ADSM server development
Greg Tevis - ADSM technical support
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