HP Storage Mirroring V5 Software - Manual (Page 17)

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Sample configurations
Storage Mirroring is an exceptionally flexible product that can be used in a wide variety of network configurations. To
implement Storage Mirroring effectively, it is important to understand the possible configuration options and their relative
benefits. Storage Mirroring configuration options can be used independently or in varying combinations.
One-to-one, active/standby
NOTE: The Storage Mirroring replication and failover features have different server requirements. If you use Storage
Mirroring to monitor and stand in for failed servers, the source and target must have identical versions of
operating system and applications. By contrast, Storage Mirroring replication operations do not require that
the source and target servers have identical versions of operating system and applications.
If you are using Microsoft Cluster Server, a cluster can act as any server for any of the following configuration
samples.
Description One target server, having no production activity, is dedicated to support one source server. The source
is the only server actively replicating data.
Applications This configuration is appropriate for offsite disaster recovery, failover, and critical data backup. This is
especially appropriate for critical application servers such as Exchange, SQL Server, and web servers.
This configuration is required for system state protection and recovery using the Storage Mirroring
Server Recovery Option.
This is the easiest configuration to implement, support, and maintain.
Considerations This configuration requires the highest hardware cost because a target server is required for every
source server.
This is the only configuration that can be used for system state protection and recovery using the
Storage Mirroring Server Recovery Option.
Source
(Active)
Target
(Standby)