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IBM TotalStorage DS6000 Series: Performance Monitoring and Tuning
book

IBM TotalStorage DS6000 Series: Performance Monitoring and Tuning

by Cathy Warrick, Craig Gordon, Benoit Granier, Keitaro Imai, Rosemary McCutchen, Brannen Proctor, Jim Sedgwick, Paulus Usong, Mary Ann Vandermark, John Wickes
December 2005
Intermediate to advanced content levelIntermediate to advanced
530 pages
18h 34m
English
IBM Redbooks
Content preview from IBM TotalStorage DS6000 Series: Performance Monitoring and Tuning
216 IBM TotalStorage DS6000 Series: Performance Monitoring and Tuning
write sequences: 2575
write seq. lengths: avg 273.6 min 256 max 512 sdev 64.8
seeks: 2575 (93.6%)
seek dist (blks): init 14252544,
avg 1725.9 min 256 max 511232 sdev 22428.8
seek dist (%tot blks):init 10.61897,
avg 0.00129 min 0.00019 max 0.38090 sdev 0.01671
time to next req(msec): avg 43.573 min 0.844 max 14016.443 sdev 365.314
throughput: 2922.4 KB/sec
utilization: 0.99
skipping to end.....................
In the filemon output, above, we notice:
򐂰 The most active logical volume is /dev/305glv (/interdiskfs); it is the busiest logical volume
with an average data rate of 87 ...
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Publisher Resources

ISBN: 0738494119Purchase book