Editing the data pool warning threshold

You can prevent the pool from reaching full capacity by monitoring the pool usage rate.

For more information about checking alerts and checking the details of a SIM, see the Hitachi Device Manager - Storage Navigator User Guide for your storage system.

For more information about SNMP, see the SNMP Agent User Guide.

Before you begin

  • You must not be decreasing the pool capacity.

Procedure

  1. In the Explorer pane, click Storage Systems, expand the storage system tree, and then click Pools.

  2. In the Pools tab, from the list of pools, select the check box for the pool with the warning threshold that you want to change, and then click More Actions Edit Pools.

  3. In the Edit Pools window of the Edit Pools wizard, complete the following:

    Warning Threshold
    • Enter the data pool warning threshold.
    • Range: 20% - 95%, in 1% increments.
    • Default: 80%
    CautionExcessive pool usage rates (rates over 50%) are rounded down to the closest integer. Therefore, excessive pool usage in SIM and SNMP might be reported when the actual pool usage rate exceeds the threshold, even though the value shown is only 50%.

  4. Click Finish, and then confirm the settings.

  5. Accept the default task name or enter a unique name.

    You can enter up to 32 letters, numbers, and symbols, except the following:

    \ / : , ; * ? " < > |

  6. If you want to monitor the task after submitting it, select Go to tasks window for status.

  7. Click Apply to submit the task.

Parent Topic
  • Managing pools

    Use Thin Image to manage pools, such as monitoring information about a selected pool (for example, the LDEV ID and Used Pool Capacity), viewing used pool capacity by pool or by the Thin Image pair's root volume, viewing the progress of rebalancing the pool usage rates among parity groups, increasing pool volume by adding pool-VOLs to a pool, decreasing the pool volume, and monitoring the pool usage rate.