Pool utilization thresholds

When the used capacity of a pool reaches or exceeds the utilization thresholds set for the pool, you will be alerted so that you can take the appropriate action.

You can set the following threshold values for each pool:

  • Warning Threshold: Range = 1% to 100%, in 1% increments. Default = 70%.
  • Depletion Threshold: Range = 1% and 100%, in 1% increments. Default = 80%. The Depletion Threshold must be higher than the Warning Threshold.

If the pool used-capacity is equal to or greater than the Warning or Depletion Threshold, a service information message (SIM) is issued by the storage system. SIMs are displayed by Device Manager - Storage Navigator and other management software and reported to the open-system hosts as SNMP traps.

The following figure shows a pool with a total pool capacity of 1,000 GB, a Warning Threshold of 50%, and a Depletion Threshold of 80%. If the used capacity of this pool is equal to or greater than 50% (500 GB) of the total pool capacity, a SIM and an SNMP trap are reported. If the used capacity of this pool increases further and is equal to or greater than the Depletion Threshold (80%), another SIM and SNMP trap are reported.

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.