July 2004
Intermediate to advanced
496 pages
16h 46m
English
book
IBM TotalStorage Enterprise Storage Server Implementing ESS Copy Services with IBM eServer zSeries
by Cathy Warrick, Paul Jenkin, Claus Schiefer, Jiri Spacek
Content preview from IBM TotalStorage Enterprise Storage Server Implementing ESS Copy Services with IBM eServer zSeries
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Chapter 6. Concurrent Copy 285
Note that all storage requirements will be in addition to the working set of storage required by
all other applications active (including all other Concurrent Copy operations) during the
execution of the DFSMSdss Concurrent Copy operation.
6.11.2 Cache
Concurrent Copy, by design, minimizes the amount of ESS cache that is used for sidefiles.
Under normal circumstances, a Concurrent Copy session uses less than 0.5MB of cache. It is
very unlikely that running a few simultaneous Concurrent Copy sessions will significantly
affect the hit ratios that you normally achieve. It is, however, possible that the cache used by
a Concurrent Copy session could have an effect on hit ratios. This is especially likely in cases ...
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