7.7.5.22 DESCRIBE PMEMCACHE

Purpose

The DESCRIBE PMEMCACHE command displays a list of attributes for the PMEMCACHE object type.

Note:

The DESCRIBE PMEMCACHE command can only be used on Exadata X8M and X9M storage server models.

Syntax

DESCRIBE PMEMCACHE

Usage Notes

The attributes displayed by the DESCRIBE PMEMCACHE command can include:

• cellDisk: Cell disk names used by the PMEM cache.

• creationTime: Time stamp when the PMEM cache was created.

• degradedCelldisks: List of cell disks configured for the cache but not currently available.

• effectiveCacheSize: Usable PMEM cache size after deducting space on unavailable cell disks.

• id: Global unique identifier (GUID) that is generated when the PMEM cache is created.

• name: Unique name of the PMEM cache.

• size: Total size of the PMEM cache.

• status: Current status of the PMEM cache, such as normal, warning or critical.

• On Exadata X8M and X9M systems with Oracle Exadata System Software release 23.1.0, you can interchangeably use DESCRIBE XRMEMCACHE instead of DESCRIBE PMEMCACHE.

Examples

The following example shows the DESCRIBE command with the PMEMCACHE object.

Example 7-114 Describing the PMEMCACHE Object

CellCLI> DESCRIBE PMEMCACHE

         name
         cellDisk               modifiable
         creationTime
         degradedCelldisks
         effectiveCacheSize 
         id
         size                   modifiable
         status