HP StorageWorks XP Remote Web Console Software - Manual (Page 9)

Business Benefits
TrueCopy provides the following business benefits:
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Supports your business continuity and disaster recovery efforts and plans.
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Provides distance replication while maintaining application and data integrity.
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Improves business resilience by enabling frequent, nondisruptive disaster recovery testing with
an online copy of current and accurate production data.
•
Improves service levels by reducing planned and unplanned downtime of customer-facing
applications.
Applications of TrueCopy Synchronous and TrueCopy Asynchronous
TrueCopy provides a storage-based hardware solution for disaster recovery which enables fast
and accurate system recovery. Once TrueCopy operations are established, duplicate copies of
data are automatically maintained for backup and disaster recovery purposes. During normal
TrueCopy operations, the primary volumes remain online to all hosts and continue to process both
read and write I/O operations. In the event of a disaster or system failure, the secondary copy of
data can be rapidly invoked to allow recovery with a very high level of data integrity. TrueCopy
can also be used for data duplication and migration tasks.
TrueCopy Synchronous provides volume-based real-time data backup and is ideal for high-priority
data backup, duplication, and migration tasks. In the event of a disaster or system failure at the
primary site, the secondary TrueCopy Synchronous data can be rapidly invoked to allow recovery
at the volume level with an extremely high level of data integrity.
TrueCopy Asynchronous represents a unique and outstanding disaster recovery solution for large
amounts of data which span multiple volumes. The TrueCopy Asynchronous group-based update
sequence consistency solution enables fast and accurate database recovery, even after a rolling
disaster, without the need for time-consuming data recovery procedures. The TrueCopy Asynchronous
volume groups at the remote site can be recovered with full update sequence consistency, but the
updates will be behind the primary site due to the asynchronous remote copy operations.
TrueCopy Asynchronous provides update sequence consistency for user-defined groups of volumes
(for example, large databases) as well as protection for write-dependent applications in the event
of a disaster.
Business Benefits 9