September 2002
Intermediate to advanced
332 pages
11h 1m
English
Content preview from IBM eServer zSeries 900 Technical Guide
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Chapter 6. Capacity upgrades 207
CUoD and CIU are functions available on z900 servers that enable concurrent and
permanent capacity growth of a z900 server.
CUoD can concurrently add processors, memory, and channels, up to the limit allowed by the
existing configuration. CUoD requires IBM service personnel for the upgrade.
CIU can concurrently add processors and memory up to the limit of the installed MCM and
memory cards. CIU is initiated by the customer via the Web, using IBM Resource Link, and
makes use of CUoD techniques. CIU requires a special contract.
Unplanned upgrades
Unplanned upgrades can be done by the Capacity BackUp (CBU) for emergency or
disaster/recovery situations.
CBU is a
concurrent and temporary activation of Central Processors ...
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