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InForm OS Version 2.2.4 Command Line Interface Reference

names of the volumes are <VV_name>.0 through <VV_name>.<count-1>. If the ID is

specified, it is used as the ID of

VV_name.0 and incremented by 1 for each subsequent

volume.

-spt <sectors_per_track>

Allows you to define the virtual volume 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>

Allows you to define the virtual volume 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>...]

Allows you to set the policy of a virtual volume. If an argument is not specified, the option

defaults to

no_one_host. The available policies are:

stale_ss

Allows stale (invalid) snapshots. This means that failures to update the snapshot

data do not affect the writing to the base volume, but the snapshot is then

considered invalid. This is the default setting for all volumes.

no_stale_ss

Specifies that invalid snapshot volumes are not permitted. A 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 virtual volume to multiple hosts

for use by a cluster-aware application, or when port presents VLUNs are used. This is

the default policy setting.

tp_bzero

For thin provisioned volumes, when a host write results in the allocation of a new

data page that is only partially filled by the host write, then you can do a zero-fill on

the unwritten portion of the page to ensure that the host never reads old data from

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