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SSSU Command Reference
40
Command View EVA Storage System Scripting Utility Reference Guide
The ADD SNAPSHOT command creates a picture (not a full copy) of a virtual
disk family’s active virtual disk.
disk family’s active virtual disk.
Note:
Creating snapshots of virtual disks depends on your licensing level. Attempting
to add a snapshot without the license returns an error message. This message indicates
that you need to enter your licensing information in the Command View EVA. You must
have a registered license.
Syntax
ADD SNAPSHOT <snapshot_name> VDISK=<vdisk_to_snapshot>
Switches
The following switches are available with the ADD SNAPSHOT command.
ALLOCATION_POLICY=
Indicates how the space for the snapshot is allocated.
■
DEMAND—Storage is allocated for the snapshot only when required. As the
snapshot and the original storage’s information diverges, the space allocated
for the snapshot increases.
snapshot and the original storage’s information diverges, the space allocated
for the snapshot increases.
■
FULLY—All storage required to fully contain a snapshot is allocated when
the snapshot is created. This is the conservative method to create a snapshot,
because adequate space is guaranteed for a full snapshot. This is the default.
the snapshot is created. This is the conservative method to create a snapshot,
because adequate space is guaranteed for a full snapshot. This is the default.
OS_UNIT_ID=
The ID that is presented to the host operating system. If set to zero, no ID is
presented to the host.
presented to the host.
REDUNDANCY=
The amount of data protection set when creating the virtual disk. If not specified,
the default is Vraid0.
the default is Vraid0.
ADD SNAPSHOT