Secondary storage systems – HP StorageWorks XP Remote Web Console Software User Manual
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consistency group, the journal group will automatically be removed from the extended consistency
group.
Removal of journal groups from an extended consistency group does not stop remote copy operations,
but does affect consistency in data update sequence. In the example in
below, if you remove the journal group 1 from the secondary EXCTG, the remote copy operation from
the primary storage system 1 to the secondary storage system 1 will continue. However, consistency
in data update sequence will only be maintained among the primary storage systems 2 and 3
and the secondary storage systems 2 and 3.
Figure 85 Example 1: Remote Copy Operations Among Three Primary Storage
Systems and Three Secondary Storage Systems
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