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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
146 IBM TotalStorage DS6000 Series: Performance Monitoring and Tuning
used logical disks. For open systems, we recommend the use of SDD (subsystem device
driver) for load balancing and failover. For the zSeries servers the multi-pathing facility is
already part of the I/O subsystem—I/O operations can be started on one channel and
reconnect on a different one; so the recommendation is to lay out alternate paths to the
devices. Both SDD and z/OS automatically recognize and exploit the preferred path
characteristics of the DS6000.
5.3 FICON
FICON is a Fibre Connection used with zSeries servers (see 2.10.3, “FICON attachment” on
page 47). The conn ...
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Publisher Resources

ISBN: 0738494119Purchase book