V-vol limits, Prerequisites for creating v-vols, 111 prerequisites for creating v-vols – HP XP Racks User Manual
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V-VOL limits
The maximum number of V-VOL groups that can be created for each storage system is 65,280. For
XP24000/XP20000 storage systems, the maximum number of V-VOLs in a V-VOL group is 1024.
For HP StorageWorks P9500 storage systems, the default maximum number of V-VOLs that can be
created at one time with the Create V-VOL Wizard is 900. (Exceeding this limit will fail with the error
RPM-01014.) To increase this value, you must modify the
server.http.entity.maxLength
property in the
server.properties
file of the Device Manager server.
By increasing the value of
server.http.entity.maxLength
to 141,500 or greater, the limit on
the number of V-VOLs that can be created at one time for HP StorageWorks P9500 storage systems
is increased to 1,024.
For details about editing the
server.properties
file, see the HP P9000 Command View Advanced
Edition Suite Software Administrator Guide.
Prerequisites for creating V-VOLs
The following prerequisite conditions must be satisfied before creating V-VOLs:
•
The storage device is an XP24000/XP20000 or HP StorageWorks P9500 storage system.
•
A Snapshot license has been registered on the storage device.
•
The platform used for setting and displaying V-VOLs is open system.
Conditions for primary volumes that can be added (V-VOL Creation)
The following are the requirements for volumes that are displayed as P-VOL candidate volumes in the
2. Select Primary LDEVs page of the Create V-VOL Wizard.
•
The volume must not be a Snapshot S-VOL.
•
Volume types including command devices, pool volumes, journal volumes, system volumes and V-
VOLs must not be set.
•
The volume attributes must not include POOL.
•
The volume attributes must not include V-VOL.
•
The volume attributes must not include LUSE.
•
The emulation type must be OPEN-V.
•
A path must be defined.
•
The capacity must be between 46 MB and 4 TB.
Permitted V-VOL operations based on CVS installation
The operations that can be performed on V-VOLs depend on whether CVS (Open Volume Management)
has been installed. V-VOLs can be added or deleted from an existing V-VOL group only when CVS
has been installed. The following table lists the conditions and restrictions when creating V-VOL groups:
NOTE:
The maximum number of V-VOLs on an HP StorageWorks P9500 storage system are not restricted
based on CVS installation.
User Guide
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