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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 6. Performance planning tools 215
This graph shows the DS8300 resource utilization growth with the increase in I/O rate. We
can observe that the HDD utilization starts to reach the
red area at an I/O rate > 24000 IOPS.
This utilization impacts the service time and can be seen in Figure 6-62 on page 214, where
at greater than 24000 IOPS, the service time increases more rapidly.
After selecting Utilization Overview in the Graph Data choices, click Clear and click Plot,
which produces the resource utilization table in Figure 6-63.
Figure 6-63 Open Systems workload growth impact on resource utilization
6.4 Disk Magic SSD modeling
Disk Magic ...
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Publisher Resources

ISBN: 0738436836Purchase book