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82 HP StorageWorks Disk Arrays XP128/XP1024: Owner’s Guide
Remote and local data replication
Continuous Access XP, Continuous Access Extension XP, and Business
Copy XP are valuable tools for creating copies of data for testing, backup,
and disaster recovery.
HP StorageWorks Continuous Access XP
Continuous Access allows you to make ongoing synchronous copies of disk
array data to a remote site 27 miles (43 kilometers) away.
HP StorageWorks Continuous Access Extension XP
Continuous Access Extension XP is similar to Continuous Access XP, but
operating in asynchronous mode. This can produce increased performance
in remote copying. Copy operations are sequenced-stamped to ensure they
are executed and sorted correctly at the remote disk array.
You must purchase Continuous Access Extension as an upgrade if you are
currently using the Continuous Access XP in synchronous mode, but would
prefer to use asynchronous mode.
HP StorageWorks Business Copy XP
Business Copy allows you to make up to nine ongoing copies of data.
These copies are maintained on the local disk array. Use Business Copy for
non-production activities such as backup, batching, and system testing.