Hitachi ShadowImage for z/OS user guide (HIT9503-96009, January 2008)

Concurrent Copy (CC)
The storage system is functionally compatible with the IBM 3990 Concurrent Copy (CC) function.
Concurrent Copy operations are performed in the same manner as Compatible XRC operations, by
issuing Compat
ible XRC TSO commands from the host system to the storage system. Concurrent Copy
can also be use
d in conjunction with Siz to provide multiple copies of volumes at both your main
(primary) and remote (secondary) sites.
Contact your HP account team for more information on the Concurrent Copy (CC) feature.
NOTE:
HP StorageWor
ks for Compatible Replication XRC, CC operations, and TrueCopy Asynchronous require
additional ca
che to store the asynchronous record sets. If you are performing HP StorageWorks for
Compatible R
eplication XRC and/or CC operations in addition to TrueCopy Asynchronous on the same
storage system, you must make sure that the storage system has adequate cache installed and available
to support the asynchronous copy workloads. Contact your HP account representative to determine how
much cache y
ouwillneedforyourconfiguration.
Hitachi ShadowImage for z/OS user guide
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