As snapshots are created, modified, refreshed, and deleted on the system, the information is logged or updated depending on the action taken. These values provide useful information to the user about each snapshot and can help with locating a specific point-in-time image of the parent resource. Figure 20 shows an example of the Snapshots tab within the Protection tab in the properties window for a volume. Listed in this example is the Name, Type, Secure Snapshot, Creation Time, Source Data Time, and Expiration Time for each snapshot. Multiple other columns can be added to the view. This is completed by clicking the Show/Hide Table Columns button and selecting which columns to display.

Figure 20.    Snapshots tab within the Protection tab of a volume

The following information is available for snapshots:

Name: This is the current name of the snapshot. Depending on the resource type, this name may be updated. The default name for a user-created snapshot includes the date and timestamp for when the snapshot was created in Coordinated Universal Time (UTC) time. For snapshots created by a snapshot rule, the default name includes the snapshot rule name, resource name, and date and timestamp in UTC format. Snapshot names must be unique within a storage resource family.

Type: Defines the type of snapshot that was created. The Type can either be User (for user created snapshots) or Scheduled (for snapshots created by a snapshot rule within the system).

Secure Snapshot: Defines if the Secure Snapshot setting is enabled with Yes/No.

Creation Time: The date and time the snapshot was created. PowerStore Manager adjusts this value and displays it in the local time zone of the user.

Expiration Time: The date and time the snapshot is due to be automatically deleted by the system. PowerStore Manager adjusts this value and displays it in the user’s local time zone.

Source Data Time: The date and time the snapshot was created. When the snapshot is replicated, it is the creation time of the source snapshot.

State: The current state of the snapshot. The states can either be Ready (operating normally), Initializing (snapshot is being created), Offline (the snapshot is not available due to an issue on the system), and Destroying (the snapshot is being deleted).

Application Consistent: Defines if the snapshot is taken by an application or script which guarantees application consistency. The possible values are Yes and No.

Write-Order Consistent (volume groups only): Defines if the snapshot was created with the volume group write-order consistency setting enabled or disabled.

Volume Members (volume groups only): Displays the number of volumes within the volume group when the snapshot was taken.

VG Snapshot Name (volume groups only): Displays the name of the equivalent snapshot at the volume group level.

Access Type (file systems only): Displays the type of access allowed to the snapshot. The type of snapshot can either be Protocol (read-only) or Snapshot (read-only).

Last Refresh Time (file systems only): Displays the date and time the snapshot was last refreshed. If the snapshot has not been refreshed, -- is displayed.