Controlling Thin Image pair behavior in a Dynamic Provisioning pool

Use this procedure to control whether Thin Image pairs are suspended when the free capacity of a Dynamic Provisioning pool that contains Thin Image pairs and snapshot data is depleted.

The Suspend TI pairs when depletion threshold is exceeded option enables you to stop Thin Image pair copy operations in a Dynamic Provisioning pool and prioritize the writing process to DP-VOLs when the free capacity of the pool is depleted. When this option is enabled and the pool used capacity exceeds the depletion threshold, SIM code 62Exxx is output. After this SIM code is output, if you split a Thin Image pair in the depleted pool, the operation fails and the pair is suspended by error (PSUE). You can restore the suspended Thin Image pairs when the pool used capacity has decreased below the depletion threshold and the SIM code has been cleared.

Before you begin

  • The Storage Administrator (Provisioning) role is required to perform this task.
  • The target pool must be a Dynamic Provisioning pool that contains Thin Image pairs and snapshot data.

Procedure

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

  2. Click Pools.

  3. In the Pools table, select the pool you want to edit, click More Actions, and select Edit Pools.

  4. In the Edit Pools window, expand Options, and then select Suspend TI pairs when depletion threshold is exceeded.

  5. Select Yes to enable the option, or select No to disable the option.

  6. Click Finish.

  7. Check the settings in the Confirmation window, and then enter the task name in Task Name.

    You can enter up to 32 ASCII characters and symbols in all, except for \ / : , ; * ? " < > |. The value "date-window name" is entered by default.

  8. Click Apply.

    The task is registered. If you selected Go to tasks window for status, the Tasks window appears.
Parent Topic
  • Thresholds for monitoring pools

    Dynamic Provisioning monitors pool capacity using thresholds. A threshold is the proportion (%) of the used capacity of the pool to the total capacity of the pool, or the proportion (%) of the physical used capacity of the pool to the total capacity reserved for writing of the pool.