Metrics for vSAN Cache Disk

The VMware Aria Operations collects the metrics you use to monitor the performance of your vSAN cache disk.

Metrics for vSAN cache disk include:


Component	Metrics
Performance	Performance\|Bus Resets Performance\|Commands Aborted Per Second The following performance metrics are disabled by default: Performance\|Device Latency (ms) Performance\|Device Read Latency (ms) Performance\|Device Write Latency (ms) Performance\|Read Requests Per Second Performance\|Average Reads Per Second Performance\|Write Requests Per Second Performance\|Average Writes Per Second Performance\|Read Rate Performance\|Write Rate Performance\|Usage Performance\|HDD Errors
SCSI SMART Statistics Note: SMART data collection is disabled by default. To enable SMART data collection, ensure that the Enable SMART data collection instance identifier is set to true. For proper data collection, ensure that ESXi hosts in your vCenter Server inventory have CIM service enabled and CIM providers for each SMART metric installed.	SCSI SMART Statistics\|Health Status SCSI SMART Statistics\|Media Wearout Indicator SCSI SMART Statistics\|Write Error Count SCSI SMART Statistics\|Read Error Count SCSI SMART Statistics\|Power on Hours SCSI SMART Statistics\|Reallocated Sector Count SCSI SMART Statistics\|Raw Read Error Rate SCSI SMART Statistics\|Drive Temperature SCSI SMART Statistics\|Maximum Observed Drive Temperature SCSI SMART Statistics\|Drive Rated Max Temperature SCSI SMART Statistics\|Write Sectors TOT Count SCSI SMART Statistics\|Read Sectors TOT Count SCSI SMART Statistics\|Initial Bad Block Count SCSI SMART Statistics\|Worst Media Wearout Indicator SCSI SMART Statistics\|Worst Write Error Count SCSI SMART Statistics\|Worst Read Error Count SCSI SMART Statistics\|Worst Power-on Hours SCSI SMART Statistics\|Power Cycle Count SCSI SMART Statistics\|Worst Power Cycle Count SCSI SMART Statistics\|Worst Reallocated Sector Count SCSI SMART Statistics\|Worst Raw Read Error Rate SCSI SMART Statistics\|Worst Driver Rated Max Temperature SCSI SMART Statistics\|Worst Write Sectors TOT Count SCSI SMART Statistics\|Worst Read Sectors TOT Count SCSI SMART Statistics\|Worst Initial Bad Block Count
Capacity	vSAN\|Health\|Capacity\|Total Disk Capacity (GB) vSAN\|Health\|Capacity\|Used Disk Capacity (GB)
Congestion Health	vSAN\|Health\|Congestion Health\|Congestion Value
Performance	vSAN\|Performance\|Physical Layer Reads Per Second vSAN\|Performance\|Physical Layer Writes Per Second vSAN\|Performance\|Physical Layer Read Throughput (KBps) vSAN\|Performance\|Physical Layer Write Throughput (KBps) vSAN\|Performance\|Physical Layer Read Latency (ms) vSAN\|Performance\|Physical Layer Write Latency (ms) vSAN\|Performance\|Physical Layer Read Count vSAN\|Performance\|Physical Layer Write Count vSAN\|Performance\|Device Average Latency (ms) vSAN\|Performance\|Guest Average Latency (ms)