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ETERNUS SFAdvancedCopy Manager 14.0 Operator's Guide forTape Server Option

5.5.4 Deleting a device

This section describes deleting a device. The process depends on the device type.

5.5.4.1 Deleting a transaction volume

To delete a transaction volume, follow the steps shown below. Ensure that these steps are performed before the target transaction volume is removed.

  1. Execute 11.2.2.10 acmhistdel (History information delete command) to delete the backup history for the transaction volume to be deleted.

    A command execution example is shown below.

    # /opt/FJSVswstc/bin/acmhistdel -z /dev/dsk/c1t1d0s6
    /dev/dsk/c1t1d0s6 acmhistdel completed
    #
  2. Execute "11.2.1.7 acmbkpoldel (Disk backup policy delete command)" and "11.2.1.10 acmtpbkpoldel (Tape backup policy delete command)" to delete the backup policy for the transaction volume to be deleted.

    Command execution examples are shown below.

    # /opt/FJSVswstc/bin/acmbkpoldel /dev/dsk/c1t1d0s6
    /dev/dsk/c1t1d0s6 acmbkpoldel completed
    #
    # /opt/FJSVswstc/bin/acmtpbkpoldel /dev/dsk/c1t1d0s6
    /dev/dsk/c1t1d0s6 acmtpbkpoldel completed
    #
  3. Execute 11.2.1.3 acmdevinfoset (Device information setting command) to delete device information for the transaction volume to be deleted.

    A command execution example is shown below.

    # /opt/FJSVswstc/bin/acmdevinfoset -o /dev/dsk/c1t1d0s6
    acmdevinfoset completed
    #

5.5.4.2 Deleting a backup volume

To delete a backup volume follow the steps as shown below.

  1. Give the backup volume to be deleted the unused status.

    When a volume is unused, this volume does not exist in a backup history. If the volume exists in a backup history, delete the backup history. When the same backup history also exists on tape, the history on tape need not be deleted. For details, refer to "11.2.2.10 acmhistdel (History information delete command)".

    If the volume is already unused, skip to the next step.

    A command execution example is shown below.

    # /opt/FJSVswstc/bin/acmhistdel -m DISK -g 1 /dev/dsk/c1t1d0s6
    /dev/dsk/c1t1d0s6 acmhistdel completed
    #
  2. Execute 11.2.1.3 acmdevinfoset (Device information setting command) command delete device information for the backup volume to be deleted.

    A command execution example is shown below.

    # /opt/FJSVswstc/bin/acmdevinfoset -o /dev/dsk/c1t2d1s6
    acmdevinfoset completed
    #

Note

If a backup volume is deleted, an already defined backup policy may no longer be met (e.g., the number of backup volumes may now be less than the number of preservation generations). In such a case, the backup operation can no longer be continued. To avoid this, be sure to check already defined backup policies before deleting a backup volume.

If an insufficient number of backup volumes will remain, first register a backup volume and then delete the target backup volume.