Seagate ST3400071FC Betriebsanweisung Seite 144

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11.18
Command Line Interface Reference InForm OS Version 2.2.4
–al <percent>
Specifies the virtual volume’s allocation limit. The snapshot data space of the virtual volume
is prevented from growing beyond the specified percentage of the virtual volume size.
After reached, new writes to the volume fail.
–aw <percent>
Specifies the percentage of used snapshot data space that when reached, results in a
warning alert. To disable the warning, enter
0.
-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 no_stale_ss|stale_ss|one_host|no_one_host
Specifies the policy (rule) that the created virtual volume follows. If an argument is not
specified, the policy defaults to
stale_ss.
stale_ss
Specifies that invalid snapshot volumes are permitted. Failure to update snapshot
data does not affect the write to the base volume. However, the snapshot is
considered invalid.
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.
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