September 2002
Intermediate to advanced
332 pages
11h 1m
English
Content preview from IBM eServer zSeries 900 Technical Guide
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© Copyright IBM Corp. 2002 205
Chapter 6. Capacity upgrades
This chapter describes the IBM ^ zSeries 900 server’s capacity upgrade functions
and features.
The z900 servers have the capability of
concurrent upgrades, without a server outage, in both
planned and unplanned situations.
In most cases, a z900 capacity upgrade can also be
nondisruptive, without a system outage.
The following sections are included:
“Concurrent upgrades” on page 206
“Capacity Upgrade on Demand (CUoD)” on page 207
“Customer Initiated Upgrade (CIU)” on page 212
“Capacity BackUp (CBU)” on page 216
“Nondisruptive upgrades” on page 219
6
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