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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126 IBM TotalStorage Enterprise Storage Server: Implementing ESS Copy Services with IBM eServer zSeries
wideband or long distance transport devices (DWDM, channel extenders, WAN) and the host
adapters in the secondary ESS. Physical links can carry multiple logical PPRC paths.
Two methods are supported:
ESCON: This requires ESCON host adapters in both ESSs. The link can be directly
cabled or routed through ESCON directors in the normal way. Because ESCON is a
direction oriented protocol, ESCON links can only operate in one direction. Separate
physical links must be installed if PPRC paths need to be connected between ESSs using
ESCON in the other ...
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