FROM : Christian Moser
M001CC.CMOSER
Christian Moser at BE2006
DATE : 05/10/96
SUBJECT: Tape usage
Hi,
two SAP R/3 BACKINT nodes a running backups at the same time to our
ADSM MVS server. Both are going with many parallel sessions to the
same STGP hierarchy with collocation on for tape volumes. Many of the
files in the parallel sessions are bigger than maxsize for disk.
Logically two mounts occur, one for each node, many sessions are
waiting for the tape volumes in use by the two sessions.
BUT after about half of an hour ADSM decides to mount additional 5
tapes (mountlimit=7) and starts real parallel processing for these two
nodes. ITS GREAT, BUT WHAT TRIGGERS THIS BOOST?
Kind regards
Christian Moser, Internet: christian.moser AT schering DOT de
at SCHERING AG, 13342 Berlin, Tel.: (030)4681356 Fax: (030)46916719
|