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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
22 IBM TotalStorage DS6000 Series: Performance Monitoring and Tuning
structure and algorithms that the DS6000 uses, are factors that improve the I/O performance.
The significance of this benefit will mostly be determined by the type of workload that is run.
In the DS6000 there is 4 GB of fixed cache. This cache is divided between the two servers of
the DS6000, giving the servers their own non-shared cache.
To protect the data that is written during the I/O operations, the DS6000 stores two copies of
the data: One in the cache and another in its persistent memory.
2.5.2 Persistent memory
The persistent memory is used to store a second copy of the ...
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Publisher Resources

ISBN: 0738494119Purchase book