Managing Devices and Media › MM Admin Interface › Schedule Object › Rotation Object

Rotation Object

Media management relies upon user-defined rotation policies to determine when and where tape volumes should be moved. Use the Rotation object to set or update the retention policies that determine when tapes will be moved or released from the vault and returned to Tape Service.

When you select the Rotation object, the right pane of the MM Admin interface lists the following information about previously defined rotations:

• Rotation Name--The name of the rotation.
• Vault Name--The name of the vault the rotation is associated with.
• Retention Hold Days--Starting from the Last Write date (the date the media was last written to), this indicates the number of days that the tape volumes will be held in this rotation.

  Note: To view the Last Write date, expand the Vault object and highlight a media name in the top right-hand pane. The Last Write date appears in the lower right-hand pane.

• Retention Keep for Cycles--Indicates the specific number of vault cycles and tape volumes that are held in this rotation.
• Retention Days Elapsed from First Format Date--Indicates that tape volumes are held in this rotation until a specified number of days have elapsed since they were first formatted.
• Retention Permanent--Indicates that tape volumes will remain in this rotation permanently.
• Retention By Tape Expiration Date--Indicates that tape volumes remain in this rotation until the tape expiration dates have passed.
• Retention By Date--Indicates that tape volumes remain in this rotation until the specified date has passed.
• Create Date--The date the rotation was created.
• Description--A user-defined description of the rotation.

Existing rotations are also listed in the right pane of the MM Admin window under the Rotation object.

• To update an existing rotation, right-click the rotation name and select Update from the pop-up menu.
• To create a new rotation, right-click the Rotation object and select Create.