May 2011
Intermediate to advanced
626 pages
15h 3m
English
book
Implementing the IBM Storwize V7000
by Brian Cartwright, Ronda Hruby, Daniel Koeck, Xin Liu, Massimo Rosati, Thomas Vogel, Bill Wiegand, Jon Tate
Content preview from Implementing the IBM Storwize V7000
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28 Implementing the IBM Storwize V7000 V6.3
1.6.1 Synchronous / Asynchronous Remote Copy
The general application of Remote Copy seeks to maintain two copies of data. Often, the two
copies are separated by distance, but not always.
The Remote Copy can be maintained in one of two modes: synchronous or asynchronous.
With the IBM Storwize V7000, Metro Mirror and Global Mirror are the IBM branded terms for
the functions that are synchronous Remote Copy and asynchronous Remote Copy.
Synchronous Remote Copy ensures that updates are committed at both the primary and the
secondary before the application considers the updates complete; therefore, the secondar ...
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