HP 3PAR OS 3.1.3 Command Line Interface Reference

Do not ask for confirmation before creating a volume with retention time (-retain).
-retain <time>[d|D|h|H]
Specifies the amount of time, relative to the current time, that the volume will be retained. <time>
is a positive integer value and in the range of 1 - 43,800 hours (1,825 days). Time can be
optionally specified in days or hours providing either d or D for day and h or H for hours following
the entered time value.
NOTE: If the volume is not in any domain, then its retention time cannot exceed the value of the
system's VVRetentionTimeMax . The default value for the system's VVRetentionTimeMax is 14 days.
If the volume belongs to a domain, then its retention time cannot exceed the value of the domain's
VVRetentionTimeMax , if set. The retention time cannot be removed or reduced once it is set. If the
volume has its retention time set, it cannot be removed within its retention time. If both expiration
time and retention time are specified, then the retention time cannot be longer than the expiration
time. This option requires the HP 3PAR Virtual Lock License. Contact your local HP 3PAR Authorized
Service Provider for more information.
-spt <sectors_per_track>
Defines the VV geometry sectors_per_track value that is reported to the hosts through the
SCSI mode pages. The valid range is from 4 to 8192 and the default value is 304.
-hpc <heads_per_cylinder>
Defines the VV geometry heads_per_cylinder value that is reported to the hosts though
the SCSI mode pages. The valid range is from 1 to 1024 and the default value is 8.
–pol <pol>[,<pol>...]
Specifies the VV policies.
stale_ss
Specifies that invalid snapshot volumes are permitted. Failure to update snapshot data does not
affect the write to the base volume, but the snapshot is considered invalid. This is the default policy
setting.
no_stale_ss
Specifies that invalid snapshot volumes are not permitted. Failure to update a snapshot is considered
a failure to write to the base volume.
one_host
This constrains the export of a volume to one host or one host cluster (when cluster names can be
used as a host name).
no_one_host
This policy should only be used when exporting a VV to multiple hosts for use by a cluster-aware
application, or when port presents VLUNs are used. This is the default policy setting.
zero_detect
This policy enables the HP 3PAR Storage System to scan for zeros in the incoming write data. This
feature when used during physical copy to a TPVV will avoid allocating space for blocks containing
zero. This feature when used with a Thin Persistence license will reclaim allocated space when
zero blocks are written to the TPVV. This policy is only applicable for the base TPVV.
NOTE: Thin Persistence can have some performance implications during extremely busy system
conditions. HP recommends the zero_detect policy only be enabled during Thin Persistence and
Thin Conversion operations. The zero_detect policy should be disabled during normal operation.
no_zero_detect
This policy disables the HP 3PAR Storage System to scan for zeros in the incoming write data to
reclaim allocated space on the volume. This is the default policy setting.
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