Sample Remote Copy Configurations; Using Remote Copy For Business Continuance; Achieving High Availability; Configuration For High Availability - HP StorageWorks P4000 User Manual

Remote copy user guide

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3 Sample Remote Copy configurations

Because of its flexibility, Remote Copy is useful in a variety of configurations. The sample configurations

described in this chapter show only a few ways to use Remote Copy for business continuance, backup

and recovery, data migration, and data mining.

Business continuance is composed of disaster recovery and high availability of data. If using Remote

Copy for business continuance, data is stored off-site and is readily available in the event of a site or

system failure.

Creating remote snapshots in remote locations with Remote Copy ensures that applications such as

SQL Server, Oracle, and Exchange have access to backup copies of data volumes if production

application servers or data volumes fail.

Using off-site remote snapshots of your production volumes, you can configure a backup application

server to access those remote snapshots or volumes. Off-site remote snapshots, particularly when

supplemented with synchronous Network RAID within a cluster, ensure high availability of critical

data volumes.

To use remote snapshots for high availability, configure a backup application server to access remote

volumes in the event of a primary system failure.

availability configuration.

Configure primary and backup application servers.

During normal operation, the production application server reads and writes to the primary volume.

Set up a schedule for copying remote snapshots to the backup location. If your application server

uses multiple volumes that must be in sync, use a script or VSS to quiesce the application before

creating remote snapshots.

Figure 10

on page 44 illustrates this simple high

P4000 Remote Copy user guide

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