3 copy pair requirements, 3-1 p-vol requirements, Copy pair requirements – HP XP Command View Advanced Edition Software User Manual
Page 34: P-vol requirements
Preparing for and Starting Operations 34
Third-Party Software Application Requirements
If the third-party software applies to a specific array, Device Manager allows the link and launch of a URL from
the physical view dialog box or Show Properties - Subsystem Name subwindow for each storage subsystem.
For details, refer to the HP StorageWorks Command View XP Advanced Edition Device Manager CLI User
Guide. Specifically refer to the addURLLink, GetURLLink, and DeleteURLLink API commands.
4-3 Copy Pair Requirements
For details on the Device Manager server requirements, host requirements, and storage subsystem
requirements that must be fulfilled to perform copy pair operations, see the HP StorageWorks Command View
XP Advanced Edition Device Manager Server Installation and Configuration Guide.
This section describes the following requirements that must be fulfilled to create a copy pair:
•
P-VOL requirements (see section
4-3-1
)
•
S-VOL requirements (see section
4-3-2
)
•
RAID level requirements (see section
4-3-3
)
4-3-1 P-VOL Requirements
Requirements for a logical device to be selectable as a primary volume (SP-VOL) for a copy pair differ
depending on the storage subsystem or copy type.
Table 4-1
shows the requirements for a logical device to be
selectable as a primary volume.
Table 4-1
Requirements for a logical device to be selectable as a primary volume (SP-volume)
Storage subsystem
Requirements for a logical device to be selectable as a primary volume (SP-volume)
Common to all storage
subsystems
Common conditions
for paired volumes
•
The logical device must be identifiable to the Device Manager
agent. You can confirm this by checking whether the date is
updated to the last update time. However, if the host uses the
central management method for pair management, the Device
Manager agent does not need to identify the logical device.
•
The combination of the RAID levels must satisfy the conditions
shown in
Table 4-3
.
•
The LUN security must be set up for the target host.
•
The logical device must be of an open system.
•
The logical device must belong to a storage subsystem for which a
command device is set up. The command device must not be
mounted.
•
The logical device must not be a command device.
If the host uses the central management method for pair management,
the logical device must be a volume that belongs to the storage
subsystem for the command device identified by the host that manages
copy pairs.
Condition
for
Continuous Access
XP Synchronous and
Continuous Access
XP Extension
•
The primary volume must not have any secondary volumes.
StorageWorks
XP12000/XP10000*
Common condition for
paired volume
For an internal volume mapped to an external volume, the host I/O
suppression mode must be disabled.
Conditions
for
Continuous Access
XP*
•
The logical device must not be a primary or secondary volume for
Continuous Access XP.
•
The logical device must not be a primary or secondary volume for
Continuous Access XP Extension.
•
The logical device must belong to the CU (MCU) for which the RCU
is set up.
•
The logical device must not be a primary volume, V-volume or data
pool for Snapshot XP.