HP XP7 Storage - Manual (Page 145)

Continuous Access Synchronous provides remote mirroring functionality, linkage functionality with
failover switching, and remote backup operations among servers, all of which are required by
UNIX/PC servers in HA configurations for disaster recovery. For detailed information about
Continuous Access Synchronous operations, please see the HP XP7 Continuous Access Synchronous
User Guide for your storage system.
Business Copy operations
Figure 45 (page 145) illustrates a Business Copy configuration. The Business Copy commands also
support the functionality that links the system operation for the purpose of volume backup among
UNIX servers managed by the operating system. For detailed information about the operational
requirements and specifications for Business Copy, see the HP XP7 Business Copy User Guide for
your storage system.
Following is a list of sample Business Copy functions that can be executed using RAID Manager
commands:
•
Pair creation: Creates a new volume pair. Volume pairs can be created in units of volumes
or groups.
•
Pair splitting: Splits a volume pair and allows read and write access to the secondary volume.
•
Pair resynchronization: Resynchronizes a split volume pair based on the primary volume. The
primary volume remains accessible during resynchronization.
•
Pair resynchronization with restore option: Resynchronizes a split pair based on the secondary
volume (reverse resync). The primary volume is not accessible during resync with restore option.
•
Event waiting: Used for waiting for the completion of a volume pair creation or
resynchronization to check the pair status.
•
Pair status display and configuration confirmation: Displays the pair status and configuration
of the volume pairs; this can also be used for checking the completion of a pair creation or
pair resynchronization.
Figure 45 Business Copy system configuration
Business Copy duplicated mirroring
Duplicated mirroring of a single primary volume is possible when the Business Copy feature is
used. Duplicated mirror volumes can be specified up tp the maximum quantity 3. The duplicated
Business Copy operations 145