Defrag dialog box

You use this dialog box to issue the DFSMSdss DEFRAG command to defragment the volumes that you selected in the Tivoli® Enterprise Portal. To learn about the standard capabilities of a dialog box, see Standard tabs in the dialog boxes of the Storage Toolkit. The topic includes a link to the Reference guides for commands that are used in the Storage Toolkit.

The dialog box provides the following options:
  • Exclude Datasets qualified by: You can add a qualifier to exclude data sets. Enter a fully-qualified name or pattern that identifies the data sets to exclude.
  • Fragmentation Index: Specify an integer n. When fragmentation drops below the value of n, the defragmentation operation ends. The DFSMSdss facility places a decimal point before the value that you specify for n, as in these examples:
    • If you specify 1, the value becomes .1.
    • If you specify 999, the value becomes .999.
    • If you specify 001, the value becomes .001.
  • Fast Replication: Use the drop-down menu to set your preference for use of the DFSMSdss fast replication feature. If the Fast Replication option is blank (the default), fast replication is not enabled.
  • Run as DFSMSdss Administrator: Select this option to cause the command to run with Administrator authorization in DFSMSdss. The user ID that you are using must be authorized as a storage administrator in DFSMSdss.
  • Dynamic Allocation: Select this option to cause the command to use dynamic allocation for the affected data sets.
  • Peer-To-Peer Remote Copy for FlashCopy®: Select this option to specify that a Peer-to-Peer Remote Copy (PPRC) primary volume is allowed to become a FlashCopy target volume. This option is ignored when FlashCopy is not used for defragmentation. RACF® authorization might be required for this option.
  • Consolidate: Select this option to enable the command to consolidate multiple extent data sets when possible.
  • Write Check: Select this option to enable verification for the data moved by defragmentation. Verification increases the time required for the defragmentation operation.
Parent topic: Volume actions in the Storage Toolkit