The vRealize Operations Manager collects metrics and performs capacity trend analysis on a hybrid vSAN read cache. Read Cache metrics are not collected for a vSAN all-flash configuration.

Read cache metrics for the vSAN disk group include:

  • Read Cache|Hit Rate (%)

  • Read Cache|Miss Rate Ratio

  • Read Cache|Read Cache Reads Per Second (IOPS)

  • Read Cache|Read Cache Read Latency (ms)

  • Read Cache|Read Cache Read I/O Count

  • Read Cache|Read Cache Writes Per Second (IOPS)

  • Read Cache|Read Cache Write Latency (ms)

  • Read Cache|Read Cache Write I/O Count