September 2002
Intermediate to advanced
332 pages
11h 1m
English
Content preview from IBM eServer zSeries 900 Technical Guide
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Chapter 5. Sysplex functions 195
Dynamic channel path management (DCM)
DCM moves channel bandwidth between disk control units to address current processing
needs.
Channel Subsystem Priority Queuing
This feature on the z900 allows the priority queueing of I/O requests in the channel
subsystem and the specification of relative priority among LPARs. WLM in goal mode sets
the priority for an LPAR and coordinates this activity among clustered LPARs.
5.5.2 LPAR CPU management
LPAR CPU management allows WLM working in goal mode to manage the processor
weighting and logical processors across an LPAR cluster.
LPAR CPU management was enhanced in z/OS 1.2 ...
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