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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
Chapter 4. Logical configuration performance considerations 101
3. Review requirements that need I/O port isolation, for example, remote replication Copy
Services, ProtecTIER®, and SAN Volume Controller. If possible try to split them as you
split hosts among hardware resources. Do not mix them with other Open Systems,
because they can have different workload characteristics.
4. Assign each required host connection to a different HA in a different I/O enclosure if
possible, balancing them across the left and right I/O enclosures:
If the required number of host connections is less than the available number of I/O
enclosures (which can be typical for certain Open Systems servers), an equal number
of host connections must be assigned to the left ...
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Publisher Resources

ISBN: 0738436836Purchase book