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DS8800 Performance Monitoring and Tuning
book

DS8800 Performance Monitoring and Tuning

by Gero Schmidt, Bertrand Dufrasne, Jana Jamsek, Peter Kimmel, Hiroaki Matsuno, Flavio Morais, Lindsay Oxenham, Antonio Rainero, Denis Senin
July 2012
Intermediate to advanced content levelIntermediate to advanced
726 pages
26h 28m
English
IBM Redbooks
Content preview from DS8800 Performance Monitoring and Tuning
130 DS8800 Performance Monitoring and Tuning
4.8.6 Balancing workload across available resources
To achieve a balanced utilization of all available resources of the DS8000 storage system, you
need to distribute the I/O workloads evenly across the available back-end resources:
򐂰 Ranks (disk drive modules)
򐂰 DA pairs
And, you need to distribute the I/O workloads evenly across the available front-end resources:
򐂰 I/O ports
򐂰 HA cards
򐂰 I/O enclosures
You need to distribute the I/O workloads evenly across both DS8000 processor complexes
(also called storage server 0/CEC#0 and storage server 1/CEC#1), as well.
Configuring the extent pools determines the balance of the workloads across the available
back-end resources, ranks, DA pairs, and both processor ...
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Publisher Resources

ISBN: 0738436836Purchase book