VMware 4817V62 Administration Guide - Page 332

vSphere Basic System Administration Table C-3. Disk Data Counters Entity Counter Label Description VHR C commands commandsAborted deviceLatency deviceReadLatency deviceWriteLatency kernelLatency kernelReadLatency Disk Commands Issued Disk Command Aborts Physical Device Command Latency Physical Device Read Latency Physical Device Write Latency Kernel Disk Command Latency Kernel Disk Read Latency Number of SCSI commands issued during the collection interval. n Stats Type: delta n Unit: number n Rollup Type: summation n Collection Level: 2 n VC/ESX: Yes/Yes ••ο ο Number of SCSI commands aborted during the collection interval. n Stats Type: delta n Unit: number n Rollup Type: summation n Collection Level: 2 n VC/ESX: Yes/Yes ••ο ο Average amount of time, in milliseconds, to complete a SCSI command from the physical device. n Stats Type: absolute n Unit: millisecond n Rollup Type: average n Collection Level: 2 n VC/ESX: Yes/Yes ο•ο ο Average amount of time, in milliseconds, to complete read from the physical device. n Stats Type: absolute n Unit: millisecond n Rollup Type: average n Collection Level: 2 n VC/ESX: Yes/Yes ο•ο ο Average amount of time, in milliseconds, to write to the physical device (LUN). n Stats Type: absolute n Unit: millisecond n Rollup Type: average n Collection Level: 2 n VC/ESX: Yes/Yes ο•ο ο Average amount of time, in milliseconds, spent by VMkernel processing each SCSI command. n Stats Type: absolute n Unit: millisecond n Rollup Type: average n Collection Level: 2 n VC/ESX: Yes/Yes ο•ο ο Average amount of time, in milliseconds, spent by VMKernel processing each SCSI read command. n Stats Type: absolute n Unit: millisecond n Rollup Type: average n Collection Level: 2 n VC/ESX: Yes/Yes ο•ο ο 332 VMware, Inc.