Changing P-VOL fence level

You can change the P-VOL's fence level, which specifies when to reject write operations to the P-VOL under certain failure circumstances.

For more information on fence levels, see the planning section on fence level options for I/O to the P-VOL after suspension in the TrueCopy User Guide.

Before you begin

  • Required status: Both volumes must be COPY or PAIR.
  • The Edit Pair Options window is used for the following procedure. If you select multiple pairs, the values do not display but are blank. When you change a value, the change applies to all selected pairs

In CCI, use the pairresync -f command.

Procedure

  1. Click Storage Systems, and then expand the Storage Systems tree.

  2. In the Storage Systems tree, click Replication Remote Replication.

  3. In the Remote Replication window, click the TC Pairs tab then select the pair whose options are to be changed.

  4. In the TC Pairs tab, click More Actions Edit Pair Options.

  5. In the Edit Pair Options window, for Primary Volume Fence Level box, select the fence level for the pairs.

    • Never: The P-VOL can always be written to.
    • Data: The P-VOL cannot be written to.
    • Status: The P-VOL cannot be written to only if the primary system is not able to change S-VOL status to PSUE.

  6. Click Finish.

  7. In the Confirm window, review the settings and enter a task name in the Task Name box.

  8. Click Apply to save your settings in the system.

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