Workflow for fixing errors when SIMs related to cache management devices are reported

The Reference code 670000 SIM (service information message) is issued if the number of the remaining cache management devices falls below 4,096.

For more information about SIM reference codes, contact customer support.

You can view SIMs that occur in the storage system in an HDvM - SN window.

For more information about checking alerts and the details of a SIM, see the System Administrator Guide for your storage system.

You must reserve enough cache management devices. If a warning SIM is issued before you deplete cache management devices, a problem has not necessarily occurred. Using the storage system and depleting the cache management devices blocks the Thin Image pair and suspends the pair ("PSUE" status) and snapshot data cannot be stored or pairs cannot be cloned. In addition, you cannot create a new Thin Image pair using another P-VOL.

Use the following workflow to fix errors when the warning SIMs related to cache management devices are reported:

1. Confirm that the number of remaining cache management devices is at least 4,096. If the number is less than 4,096, perform the following:
   • Remove unneeded V-VOLs.
   • Remove all of the snapshots in the unneeded P-VOLs by resynchronizing the pairs.
2. (VSP 5000 series) Manually complete the SIMs related to cache management devices.