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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230 IBM TotalStorage Enterprise Storage Server: Implementing ESS Copy Services with IBM eServer zSeries
5.17 Capacity and performance
Planning the resources required in an XRC environment is essential for a successful XRC
implementation. A smooth data flow is crucial, and in this section we provide some guidance
in the capacity and performance planning process.
5.17.1 SDM requirements
The SDM manages the XRC activity for all volume pairs in an XRC session.
Volumes
Up to five XRC sessions are allowed in each z/OS (or OS/390) system image. If you have
more then 1500 to 1800 volumes in a single XRC session, you may need to split these into
two or more XRC sessions. In addition to the workload balancing split, also note that unless
you use CXRC ther ...
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