About data replication operations
The data replication features of the RAID storage systems include:
• Local replication:
¢
ShadowImage
¢
ShadowImage for Mainframe
¢
Thin Image
¢
Copy-on-Write Snapshot
• Remote replication:
¢
TrueCopy
¢
TrueCopy for Mainframe
¢
TrueCopy Async
¢
Universal Replicator
¢
Universal Replicator for Mainframe
¢
global-active device
• Mainframe replication:
¢
Compatible XRC
¢
Compatible FlashCopy® V2
¢
Business Continuity Manager
For detailed information about any of these features, see the applicable user
guide (for example, Hitachi ShadowImage® User Guide).
Features of paired volumes
Paired logical volumes are often handled independently by servers. When CCI
is used, the paired volumes can be managed by the replication functions (for
example, ShadowImage, TrueCopy, Universal Replicator, global-active
device) as combined or separated pairs. The replication functions regard the
two volumes being combined or separated as a uniquely paired logical
volume used by the servers. Paired volumes can also be handled as groups,
grouping them by units of server software or units of databases and their
attributes.
For detailed information about volume pairs (for example, maximum number
of pairs per storage system, maximum P-VOL size), see the user guide for
your storage system and copy function (for example, Hitachi ShadowImage®
User Guide).
6-2
Data replication operations with CCI
Command Control Interface User and Reference Guide
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