Write Buffer Metrics for vSAN Disk Groups

The vRealize Operations collects the metrics you use to monitor the write buffer capacity of your vSAN disk groups.

A reasonably balanced system consumes a significant amount of write buffer. Before placing additional workload on the vSAN, check the write buffer metrics for the vSAN disk group.

• Write Buffer|Capacity (bytes)
• Write Buffer|Free (%)
• Write Buffer|Usage (%)
• Write Buffer|Used (byte)
• Write Buffer|Reads Per Second (IOPS)
• Write Buffer|Read Latency (ms)
• Write Buffer|Writes Per Second (IOPS)
• Write Buffer|Write Latency (ms)

The following write buffer metrics are disabled by default:

• Write Buffer|Read I/O Count
• Write Buffer|Write I/O Count