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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
606 DS8800 Performance Monitoring and Tuning
If you take a FlashCopy at the recovery site in your Global Copy implementation, consider the
influence between Global Copy and the FlashCopy background copy. If you use the
FlashCopy with the nocopy option at the recovery site, when the Global Copy target receives
an update, the track on the FlashCopy source, which is also the Global Copy target, must be
copied to the FlashCopy target before the data transfer operation completes. This copy
operation to the FlashCopy target can complete by using the DS8000 cache and NVS without
waiting for a physical write to the FlashCopy target. However, this data movement can
influence the Global Copy activity. So, when considering the network bandwidth, consider ...
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Publisher Resources

ISBN: 0738436836Purchase book