Modifying the consistency group timeout value

Complete this task to modify the consistency group timeout value, which determines the amount of time that I/O is withheld from updating a source volume of a consistency group an error occurs.

The consistency group timeout value is the time in seconds that a volume in a Metro Mirror consistency group stays unavailable after an error causes the suspension of a consistency group operation if a consistency group is not received before the timeout value. The consistency group timeout value enables automation software to detect that an error has occurred and to issue a command to freeze all other volumes of the consistency group. When an error is detected, a long-busy condition occurs.

Perform the following steps to modify the consistency group timeout value:

  1. In the navigation, select Real-time Manager > Copy Services > Paths.
  2. On the Paths — Main page, select LSS copy options from the Select Action drop-down list. Then click Go. The LSS copy options page is displayed.
  3. From the LSS copy options page, accept or modify the storage complex from the Storage complex drop-down list.
  4. Accept or modify the storage unit from the Storage unit drop-down list.
  5. Accept or modify the selected LSSs from the Select LSS drop-down list. The LSSs that you selected appear in the table. If you select All LSSs, the timeout value applies to all LSSs in the storage unit that you selected on this page.
  6. Accept or modify the consistency group timeout value (two minutes) by highlight the value and typing over the default.
  7. Click Next.
  8. If the attributes and values are not correct, click Cancel as appropriate to return to the page where you want to make changes and then specify the correct values. Otherwise, click OK to complete the volume group creation process.
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