July 2004
Intermediate to advanced
496 pages
16h 46m
English
book
IBM TotalStorage Enterprise Storage Server Implementing ESS Copy Services with IBM eServer zSeries
by Cathy Warrick, Paul Jenkin, Claus Schiefer, Jiri Spacek
Content preview from IBM TotalStorage Enterprise Storage Server Implementing ESS Copy Services with IBM eServer zSeries
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Chapter 3. Peer-to-Peer Remote Copy 73
Applications for Asynchronous PPRC include:
Maintaining a recoverable copy of critical volumes in an online or database environment at
global distances
Automation of consistency
A continuous, consistent copy solution
Asynchronous PPRC requires a minimum feature of PPRC Version 2.
PPRC paths
Before any PPRC pair relationship can be established between volumes, a PPRC path (or
group of paths) must be established. The path(s) are uni-directional and go from the LSS
containing the primary volume to the LSS containing the secondary, typically in another ESS
in a remote site. These paths are explained and the setup discussed in 3.10, “PPRC links” on
page 125.
These logical paths are created using physical p ...
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