vRealize Operations Manager collects many metrics for host systems, including CPU use, datastore, disk, memory, network, storage, and summary metrics for host system objects.

Capacity metrics can be calculated for host system objects. See Capacity Analytics Generated Metrics.

Configuration Metrics for Host Systems

Configuration metrics provide information about host system configuration.

Metric Name Description
Configuration|Hyperthreading|Active Displays the hyperthreading status of the host.

Key: configuration|hypwerthreading|active

Configuration|Hyperthreading|Available Displays whether the hyperthreading option is available for this host.

Key: configuration|hypwerthreading|available

Configuration|Storage Device|Multipath Info|Total number of Active Path Displays the amount of active path information for the storage device

Key: configuration|storagedevice|multipathinfo|total numberofActive path

Configuration|Storage Device|Total number of path Displays the total number of path for the storage device.

Key: configuration|storagedevice|total number of path

Configuration|Failover Hosts Failover Hosts.

Key: configuration|dasConfig|admissionControlPolicy|failoverHost

Hardware Metrics for Host Systems

Hardware metrics provide information about host system hardware.

Metric Name Description
Hardware|Number of CPUs Number of CPUs for a host.

Key: hardware|cpuinfo|num_CpuCores

Hardware|ServiceTag Displays the service tag of the host system.

Key: hardware|servicetag

CPU Usage Metrics for Host Systems

CPU usage metrics provide information about CPU use.

Metric Name Description
CPU|Capacity Usage (%) Percent CPU capacity used.

Key: cpu|capacity_usagepct_average

CPU|Usage (%) Average CPU usage as a percentage.

Key: cpu|usage_average

CPU|CPU Contention (%) This metric indicates the percentage of time the virtual machines in the ESXi hosts are unable to run because they are contending for access to the physical CPU(s). This is the average number of all VMs. Naturally, the number will be lower than the highest number experienced by the worst hit VM (a VM that suffers the highest CPU contention).

Use this metric to verify if the host is able to serve all of its VMs well.

When using this metric, ensure the number is within your expectation. The metric is affected by several factors so you need to watch both relative numbers and absolute numbers. Relative means a drastic change in value. This indicates that the ESXi is unable to service its VMs.

Absolute means that the real value is high and should be checked. One factor that impacts the CPU contention metric is CPU Power Management. If CPU Power Management clocks down the CPU speed from 3 GHz to 2 GHz that reduction in speed is taken into consideration. This is because the VM is not running at full speed.

Key: cpu|capacity_contentionPct

CPU|Demand (%) This metric shows the percentage of CPU resources all the VMs would use if there was no CPU contention or any CPU limits set.

It represents the average active CPU load for the past five minutes.

Keep the number of this metric below 100% if you set Power Management to Maximum.

Key: cpu|demandPct

CPU|Demand (MHz) CPU demand in megahertz. CPU utilization level based on descendant Virtual Machines utilization. Includes limits and overhead to run Virtual Machines, but not reservations.

Key: cpu|demandmhz

CPU|IO Wait (ms) IO wait time in milliseconds.

Key: cpu|iowait

CPU|Number of CPU Sockets Number of CPU sockets.

Key: cpu|numpackages

CPU|Overall CPU Contention (ms) Overall CPU contention in milliseconds.

Key: cpu|capacity_contention

CPU|Provisioned Capacity (MHz) Capacity in MHz of the physical CPU cores.

Key: cpu|capacity_provisioned

CPU|Provisioned virtual CPUs Provisioned virtual CPUs.

Key: cpu|corecount_provisioned

CPU|Total Wait CPU time spent in idle state.

Key: cpu|wait

CPU|Demand CPU demand.

Key: cpu|demand_average

CPU|Usage (MHz) CPU use in megahertz.

Key: cpu|usagemhz_average

CPU|Reserved Capacity (MHz) The sum of the reservation properties of the (immediate) children of the host's root resource pool.

Key: cpu|reservedCapacity_average

CPU|Total Capacity (MHz) Total CPU capacity in megahertz. Amount of CPU resources configured on the ESXi hosts.

Key: cpu|capacity_provisioned

CPU|Overhead (KB) Amount of CPU overhead.

Key: cpu|overhead_average

CPU|Demand without overhead Value of demand excluding any overhead.

Key: cpu|demand_without_overhead

CPU|Core Utilization (%) Percent core utilization.

Key: cpu|coreUtilization_average

CPU|Utilization(%) Percent CPU utilization.

Key: cpu|utilization_average

CPU|Core Utilization (%) Core Utilization.

Key: cpu|coreUtilization_average

CPU|Utilization (%) Utilization.

Key: cpu|utilization_average

CPU|Co-stop (ms) Time the VM is ready to run, but is unable to due to co-scheduling constraints.

Key: cpu|costop_summation

CPU|Latency (%) Percentage of time the VM is unable to run because it is contending for access to the physical CPUs.

Key: cpu|latency_average

CPU|Ready (ms) Time spent in ready state.

Key: cpu|ready_summation

CPU|Run (ms) Time the virtual machine is scheduled to run.

Key: cpu|run_summation

CPU|Swap wait (ms) Amount of time waiting for swap space.

Key: cpu|swapwait_summation

CPU|Wait (ms) Total CPU time spent in wait state.

Key: cpu|wait_summation

CPU|Provisioned Capacity Provisioned capacity (MHz).

Key: cpu|vm_capacity_provisioned

CPU|Active Host Load For Balance (Long Term) Active Host Load For Balance (Long Term).

Key: cpu|acvmWorkloadDisparityPcttive_longterm_load

CPU|Active Host Load For Balance (Short Term) Active Host Load For Balance (Short Term).

Key: cpu|active_shortterm_load

CPU| CPU Model Displays the host's CPU model.

Key: cpu|cpu model

CPU|Peak CPU Core Usage The highest CPU Usage among the CPU cores. A constantly high number indicates that one or more physical cores have high utilization.

Key: cpu|peak_cpu_core_usage

CPU Utilization for Resources Metrics for Host Systems

CPU utilization for resources metrics provide information about CPU activity.

Metric Name Description
Rescpu|CPU Active (%) (interval) Average active time for the CPU over the past minute, past five minutes, and at one-minute, five-minute, and 15-minute peak active times.

Key:

rescpu|actav1_latest

rescpu|actav5_latest

rescpu|actav15_latest

rescpu|actpk1_latest

rescpu|actpk5_latest

rescpu|actpk15_latest

Rescpu|CPU Running (%) (interval) Average run time for the CPU over the past minute, past five minutes, past 15 minutes, and at one-minute, five-minute, and 15-minute peak times.

Key:

rescpu|runav1_latest

rescpu|runav5_latest

rescpu|runav15_latest

rescpu|runpk1_latest

rescpu|runpk5_latest

rescpu|runpk15_latest

Rescpu|CPU Throttled (%) (interval) Scheduling limit over the past minute, past five minutes, and past 15 minutes.

Key:

rescpu|maxLimited1_latest

rescpu|maxLimited5_latest

rescpu|maxLimited15_latest

Rescpu|Group CPU Sample Count Group CPU sample count.

Key: rescpu|sampleCount_latest

Rescpu|Group CPU Sample Period (ms) Group CPU sample period in milliseconds.

Key: rescpu|samplePeriod_latest

Datastore Metrics for Host Systems

Datastore metrics provide information about datastore use.

Metric Name Description
Datastore|Outstanding IO requests OIO for datastore.

Key: datastore|demand_oio

Datastore|Commands Averaged Average number of commands issued per second during the collection interval.

Key: datastore|commandsAveraged_average

Datastore|Number of Outstanding IO Operations Number of outstanding IO operations.

Key: datastore|oio

Datastore|Total Latency (ms) The average amount of time taken for a command from the perspective of a Guest OS. This is the sum of Kernel Command Latency and Physical Device Command Latency.

Key: datastore|totalLatency_average

Datastore|Total Throughput (KBps) Usage Average (KBps).

Key: datastore|usage_average

Datastore|Demand Demand.

Key: datastore|demand

Datastore|Storage I/O Control aggregated IOPS Aggregate number of IO operations on the datastore.

Key: datastore|datastoreIops_average

Datastore|Read IOPS Average number of read commands issued per second during the collection interval.

Key: datastore|numberReadAveraged_average

Datastore|Write IOPS Average number of write commands issued per second during the collection interval.

Key: datastore|numberWriteAveraged_average

Datastore|Read Throughput (KBps) Rate of reading data from the datastore in kilobytes per second.

Key: datastore|read_average

Datastore|Storage I/O Control normalized latency (ms) Normalized latency in microseconds on the datastore. Data for all virtual machines is combined.

Key: datastore|sizeNormalizedDatastoreLatency_average

Datastore|Read Latency (ms) Average amount of time for a read operation from the datastore. Total latency = kernel latency + device latency.

Key: datastore|totalReadLatency_average

Datastore|Write Latency (ms) Average amount of time for a write operation to the datastore. Total latency = kernel latency + device latency.

Key: datastore|totalWriteLatency_average

Datastore|Write Throughput (KBps) Rate of writing data to the datastore in kilobytes per second.

Key: datastore|write_average

Datastore|Max Queue Depth Max Queue Depth.

Key: datastore|datastoreMaxQueueDepth_latest

Datastore|Highest Latency Highest Latency.

Key: datastore|maxTotalLatency_latest

Datastore|Total Latency Max Total Latency Max (ms).

Key: datastore|totalLatency_max

Datastore|Read Latency Read Latency.

Key: datastore|datastoreNormalReadLatency_latest

Datastore|Write Latency Write Latency.

Key: datastore|datastoreNormalWriteLatency_latest

Datastore|Data Read Data Read.

Key: datastore|datastoreReadBytes_latest

Datastore|Data Read Rate Data Rate.

Key: datastore|datastoreReadIops_latest

Datastore|Read Load Storage DRS metric read load.

Key: datastore|datastoreReadLoadMetric_latest

Datastore|Outstanding Read Requests Outstanding Read Requests.

Key: datastore|datastoreReadOIO_latest

Datastore|Data Written Data Written.

Key: datastore|datastoreWriteBytes_latest

Datastore|Data Write Rate Data Write Rate.

Key: datastore|datastoreWriteIops_latest

Datastore|Write Load Storage DRS metric write load.

Key: datastore|datastoreWriteLoadMetric_latest

Datastore|Outstanding Write Requests Outstanding Write Requests.

Key: datastore|datastoreWriteOIO_latest

Datastore|VM Disk I/O Workload Disparity Percentage Disk I/O workload disparity among the VMs on the Host.

Key: datastore|vmWorkloadDisparityPc

Datastore|Peak Datastore Read Latency The highest read latency among the datastores. A high number indicates that one or more datastores are experiencing poor performance.

Key: datastore|peak_datastore_readLatency

Datastore|Peak Datastore Write Latency The highest write latency among the datastores. A high number indicates that one or more datastores are experiencing poor performance.

Key: datastore|peak_datastore_writeLatency

Disk Metrics for Host Systems

Disk metrics provide information about disk use.

Metric Name Description
Disk|Total Throughput (KBps) Average of the sum of the data read and written for all of the disk instances of the host or virtual machine.

disk|usage_average

Disk|I/O Usage Capacity

This metric is a function of storage|usage_average and disk|workload. storage|usage_average is an average over all storage devices. This means that disk|usage_capacity is not specific to the selected VM or the host of the VM.

Key: disk|usage_capacity

Disk|Total IOPS Average number of commands issued per second during the collection interval.

Key: disk|commandsAveraged_average

Disk|Total Latency (ms) The average amount of time taken for a command from the perspective of a Guest OS. This is the sum of Kernel Command Latency and Physical Device Command Latency.

Key: disk|totalLatency_average

Disk|Read IOPS Average number of read commands issued per second during the collection interval.

Key: disk|numberReadAveraged_average

Disk|Write IOPS Average number of write commands issued per second during the collection interval.

Key: disk|numberWriteAveraged_average

Disk|Read Throughput (KBps) Amount of data read in the performance interval.

Key: disk|read_average

Disk|Write Throughput (KBps) Amount of data written to disk in the performance interval.

Key: disk|write_average

Disk|Bus Resets The number of bus resets in the performance interval.

Key: disk|busResets_summation

Disk|Read Latency (ms) The average amount of time taken for a read from the perspective of a Guest OS. This is the sum of Kernel Read Latency and Physical Device Read Latency.

Key: disk|totalReadLatency_average

Disk|Write Latency (ms) The average amount of time taken for a write from the perspective of a Guest OS. This is the sum of Kernel Write Latency and Physical Device Write Latency.

Key: disk|totalWriteLatency_average

Disk|Physical Device Latency (ms) The average time taken to complete a command from the physical device.

Key: disk|deviceLatency_average

Disk|Kernel Latency (ms) The average time spent in ESX Server VMKernel per command.

Key: disk|kernelLatency_average

Disk|Queue Latency (ms) The average time spent in the ESX Server VMKernel queue per command.

Key: disk|queueLatency_average

Disk|Number of Outstanding IO Operations Number of Outstanding IO Operations.

Key: disk|diskoio

Disk|Queued Operations Queued Operations.

Key: disk|diskqueued

Disk|Demand Demand.

Key: disk|diskdemand

Disk|Total Queued Outstanding operations Sum of Queued Operation and Outstanding Operations.

Key: disk|sum_queued_oio

Disk|Max Observed OIO Max Observed IO for a disk.

Key: disk|max_observed

Disk|Highest Latency Highest Latency.

Key: disk|maxTotalLatency_latest

Disk|Max Queue Depth Maximum queue depth during the collection interval.

Key: disk|maxQueueDepth_average

Disk|SCSI Reservation Conflicts SCSI Reservation Conflicts.

Key: disk|scsiReservationConflicts_summation

Memory Metrics for Host Systems

Memory metrics provide information about memory use and allocation.

Metric Name Description
Mem|Contention (%) This metric is used to monitor ESXi memory usage.

When the value is high, it means the ESXi is using a good percentage of available memory. You may need to add more memory to other memory-related metrics.

Key: mem|host_contentionPct

Mem|Contention (KB) Host contention in kilobytes.

Key: mem|host_contention

Mem|Host Usage (KB) Machine usage in kilobytes.

Key: mem|host_usage

Mem|Machine Demand (KB) Host demand in kilobytes.

Key: mem|host_demand

Mem|Overall Memory used to run VMs on Host (KB) Overall memory used to run virtual machines on the host in kilobytes.

Key: mem|host_usageVM

Mem|Provisioned Memory (KB) Provisioned memory in kilobytes.

Key: mem|host_provisioned

Mem|Minimum Free Memory (KB) Minimum free memory.

Key: mem|host_minfree

Mem|Reserved Capacity (%) Percent reserved capacity.

Key: mem|reservedCapacityPct

Mem|Usable Memory (KB) Usable memory in kilobytes.

Key: mem|host_usable

Mem|Usage (%) Memory currently in use as a percentage of total available memory.

Key: mem|host_usagePct

Mem|ESX System Usage Memory usage by the VMkernel and ESX user-level services.

Key: mem|host_systemUsage

Mem|Guest Active (KB) Amount of memory that is actively used.

Key: mem|active_average

Mem|Consumed (KB) Amount of host memory consumed by the virtual machine for guest memory.

Key: mem|consumed_average

Mem|Granted (KB) Amount of memory available for use.

Key: mem|granted_average

Mem|Heap (KB) Amount of memory allocated for heap.

Key: mem|heap_average

Mem|Heap Free (KB) Amount of free space in the heap.

Key: mem|heapfree_average

Mem|VM Overhead (KB) Memory overhead reported by host.

Key: mem|overhead_average

Mem|Reserved Capacity (KB) Reserved capacity in kilobytes.

Key: mem|reservedCapacity_average

Mem|Shared (KB) Amount of shared memory in kilobytes.

Key: mem|shared_average

Mem|Shared Common (KB) Amount of shared common memory in kilobytes.

Key: mem|sharedcommon_average

Mem|Swap In (KB) Amount of memory swapped in.

Key: mem|swapin_average

Mem|Swap Out KB) Amount of memory swapped out.

Key: mem|swapout_average

Mem|Swap Used (KB) Amount of memory used for swapped space in kilobytes.

Key: mem|swapused_average

Mem|VM kernel Usage (KB) Amount of memory used by the VM kernel.

Key: mem|sysUsage_average

Mem|Unreserved (KB) Amount of unreserved memory in kilobytes.

Key: mem|unreserved_average

Mem|Balloon (KB) This metric shows the total amount of memory currently used by the VM memory control. This memory was reclaimed from the respective VMs at some point in the past, and was not returned.

Use this metric to monitor how much VM memory has been reclaimed by ESXi through memory ballooning.

The presence of ballooning indicates the ESXi has been under memory pressure. The ESXi activates ballooning when consumed memory reaches a certain threshold.

Look for increasing size of ballooning. This indicates that there has been a shortage of memory more than once. Look for size fluctuations which indicate the ballooned out page was actually required by the VM. This translates into a memory performance problem for the VM requesting the page, since the page must first be brought back from the disk.

Key: mem|vmmemctl_average

Mem|Zero (KB) Amount of memory that is all zero.

Key: mem|zero_average

Mem|State (0-3) Overall state of the memory. The value is an integer between 0 (high) and 3 (low).

Key: mem|state_latest

Mem|Usage (KB) Host memory use in kilobytes.

Key: mem|host_usage

Mem|Usage (%) Memory currently in use as a percentage of total available memory.

Key: mem|usage_average

Mem|Swap In Rate (KBps) Rate at which memory is swapped from disk into active memory during the interval in kilobyte per second.

Key: mem|swapinRate_average

Mem|Swap Out Rate (KBps) Rate at which memory is being swapped from active memory to disk during the current interval in kilobytes per second.

Key: mem|swapoutRate_average

Mem|Active Write (KB) Average active writes in kilobytes.

Key: mem|activewrite_average

Mem|Compressed (KB) Average memory compression in kilobytes.

Key: mem|compressed_average

Mem|Compression Rate (KBps) Average compression rate in kilobytes per second.

Key: mem|compressionRate_average

Mem|Decompression Rate (KBps) Decompression rate in kilobytes per second.

Key: mem|decompressionRate_average

Mem|Total Capacity (KB) Total capacity in kilobytes. Amount of physical memory configured on the ESXi hosts.

Key: mem|host_provisioned

Mem|Latency Percentage of time the VM is waiting to access swapped or compressed memory.

Key: mem|latency_average

Mem|Capacity Contention Capacity Contention.

Key: mem|capacity.contention_average

Mem|Swap In Rate from Host Cache Rate at which memory is being swapped from host cache into active memory.

Key: mem|llSwapInRate_average

Mem|Swap In from Host Cache Amount of memory swapped-in from host cache.

Key: mem|llSwapIn_average

Mem|Swap Out Rate to Host Cache Rate at which memory is being swapped to host cache from active memory.

Key: mem|llSwapOutRate_average

Mem|Swap Out to Host Cache Amount of memory swapped-out to host cache.

Key: mem|llSwapOut_average

Mem|Swap Space Used in Host Cache Space used for caching swapped pages in the host cache.

Key: mem|llSwapUsed_average

Mem|Low Free Threshold Threshold of free host physical memory below which ESX begins to reclaim memory from VMs through ballooning and swapping.

Key: mem|lowfreethreshold_average

Mem|VM Memory Workload Disparity Percentage Memory workload disparity among the VMs on the Host.

Key: mem|vmWorkloadDisparityPct

Mem|Active Host Load For Balance (Long Term) Active Host Load For Balance (Long Term).

Key: mem|active_longterm_load

Mem|Active Host Load For Balance (Short Term) Active Host Load For Balance (Short Term).

Key: mem|active_shortterm_load

Mem|Utilization Memory utilization level based on descendant Virtual Machines utilization. Includes reservations, limits and overhead to run Virtual Machines

Key: mem|total_need

Network Metrics for Host Systems

Network metrics provide information about network performance.

Metric Name Description
Network|Driver This metric displays the type of network driver.

Key: net|driver

Network|Speed This metric displays the network speed.

Key: net|speed

Network|Management Address This metric displays the management address of the host network.

Key: net|management address

Network|IP Address This metric displays the IP address of the host network.

Key: net|IPaddress

Net|Packets Transmitted per second This metric shows the number of packets transmitted during the collection interval.

Key: net|packetsTxPerSec

Net|Packets per second Number of packets transmitted and received per second.

Key: net|packetsPerSec

Net|Total Throughput (KBps) The sum of the data transmitted and received for all the NIC instances of the host or virtual machine.

Key: net|usage_average

Net|I/O Usage Capacity I/O Usage Capacity.

Key: net|usage_capacity

Net|Data Transmit Rate (KBps) Average amount of data transmitted per second.

Key: net|transmitted_average

Net|Data Receive Rate (KBps) Average amount of data received per second.

Key: net|received_average

Net|Packets Received Number of packets received in the performance interval.

Key: net|packetsRx_summation

Net|Packets Transmitted Number of packets transmitted in the performance interval.

Key: net|packetsTx_summation

Net|Broadcast Packets Received Number of broadcast packets received during the sampling interval.

Key: net|broadcastRx_summation

Net|Broadcast Packets Transmitted Number of broadcast packets transmitted during the sampling interval.

Key: net|broadcastTx_summation

Net|Error Packets Transmitted Number of packets with errors transmitted.

Key: net|errorsTx_summation

Net|Multicast Packets Received Number of multicast packets received.

Key: net|multicastRx_summation

Net|Multicast Packets Transmitted Number of multicast packets transmitted.

Key: net|multicastTx_summation

Net|FT Throughput Usage FT Throughput Usage.

Key: net|throughput.usage.ft_average

Net|HBR Throughput Usage HBR Throughput Usage.

Key: net|throughput.usage.hbr_average

Net|iSCSI Throughput Usage iSCSI Throughput Usage.

Key: net|throughput.usage.iscsi_average

Net|NFS Throughput Usage NFS Throughput Usage.

Key: net|throughput.usage.nfs_average

Net|VM Throughput Usage VM Throughput Usage.

Key: net|throughput.usage.vm_average

Net|vMotion Throughput Usage vMotion Throughput Usage.

Key: net|throughput.usage.vmotion_average

Net|Unknown Protocol Frames Received Number of frames with unknown protocol received.

Key: net|unknownProtos_summation

System Metrics for Host Systems

System metrics provide information about the amount of CPU that resources and other applications use.

Metric Name Description
Sys|Power On 1 if the host system is powered on, 0 if the host system is powered off, or -1 if the power state is unknown.

Key: sys|poweredOn

Sys|Uptime (seconds) Number of seconds since the last system startup.

Key: sys|uptime_latest

Sys|Disk Usage (%) Percent disk use.

Key: sys|diskUsage_latest

Sys|Resource CPU Usage (MHz) Amount of CPU that the Service Console and other applications use.

Key: sys|resourceCpuUsage_average

Sys|Resource CPU Active (1 min. average) Percentage of resource CPU that is active. Average value during a one-minute period.

Key: sys|resourceCpuAct1_latest

Sys|Resource CPU Active (%) (5 min. average) Percentage of resource CPU that is active. Average value during a five-minute period.

Key: sys|resourceCpuAct5_latest

Sys|Resource CPU Alloc Max (MHz) Maximum resource CPU allocation in megahertz.

Key: sys|resourceCpuAllocMax_latest

Sys|Resource CPU Alloc Min (MHz) Minimum resource CPU allocation in megahertz.

Key: sys|resourceCpuAllocMin_latest

Sys|Resource CPU Alloc Shares Number of resource CPU allocation shares.

Key: sys|resourceCpuAllocShares_latest

Sys|Resource CPU Max Limited (%) (1 min. average) Percent of resource CPU that is limited to the maximum amount. Average value during a one-minute period.

Key: sys|resourceCpuMaxLimited1_latest

Sys|Resource CPU Max Limited (%) (5 min. average) Percentage of resource CPU that is limited to the maximum amount. Average value during a five-minute period.

Key: sys|resourceCpuMaxLimited5_latest

Sys|Resource CPU Run1 (%) Percent resource CPU for Run1.

Key: sys|resourceCpuRun1_latest

Sys|Resource CPU Run5 (%) Percent resource CPU for Run5.

Key: sys|resourceCpuRun5_latest

Sys|Resource Memory Alloc Max (KB) Maximum resource memory allocation in kilobytes.

Key: sys|resourceMemAllocMax_latest

Sys|Resource Memory Alloc Min (KB) Minimum resource memory allocation in kilobytes.

Key: sys|resourceMemAllocMin_latest

Sys|Resource Memory Alloc Shares Number of resource memory shares allocated.

Key: sys|resourceMemAllocShares_latest

Sys|Resource Memory Cow (KB) Cow resource memory in kilobytes.

Key: Sys|resourceMemCow_latest

Sys|Resource Memory Mapped (KB) Mapped resource memory in kilobytes.

Key: ys|resourceMemMapped_latest

Sys|Resource Memory Overhead (KB) Resource memory overhead in kilobytes.

Key: sys|resourceMemOverhead_latest

Sys|Resource Memory Shared (KB) Shared resource memory in kilobytes.

Key: sys|resourceMemShared_latest

Sys|Resource Memory Swapped (KB) Swapped resource memory in kilobytes.

Key: sys|resourceMemSwapped_latest

Sys|Resource Memory Touched (KB) Touched resource memory in kilobytes.

Key: sys|resourceMemTouched_latest

Sys|Resource Memory Zero (KB) Zero resource memory in kilobytes.

Key: sys|resourceMemZero_latest

Sys|Resource Memory Consumed Resource Memory Consumed Latest (KB).

Key: sys|resourceMemConsumed_latest

Sys|Resource File descriptors usage Resource File descriptors usage (KB).

Key: sys|resourceFdUsage_latest

Sys|vMotion Enabled 1 if vMotion is enabled or 0 if vMotion is not enabled.

Key: sys|vmotionEnabled

Sys|Not in Maintenance Not in maintenance.

Key: sys|notInMaintenance

Management Agent Metrics for Host Systems

Management agent metrics provide information about memory use.

Metric Name Description
Management Agent|Memory Used (%) Amount of total configured memory that is available for use.

Key: managementAgent|memUsed_average

Management Agent|Memory Swap Used (KB) Sum of the memory swapped by all powered-on virtual machines on the host.

Key: managementAgent|swapUsed_average

Management Agent|Memory Swap In (KBps) Amount of memory that is swapped in for the Service Console.

Key: managementAgent|swapIn_average

Management Agent|Memory Swap Out (KBps) Amount of memory that is swapped out for the Service Console.

Key: managementAgent|swapOut_average

Management Agent|CPU Usage CPU usage.

Key: managementAgent|cpuUsage_average

Storage Adapter Metrics for Host Systems

Storage adapter metrics provide information about data storage use.

Metric Name Description
Storage Adapter|Driver Displays the driver details of the storage adapter.

Key: storage adapter|driver

Storage Adapter|Port WWN Displays the world wide network port for the storage adapter.

Key: storage adapter|portwwn

Storage Adapter|Total Usage (KBps) Total latency.

Key: storageAdapter|usage

Storage Adapter|Total IOPS Average number of commands issued per second by the storage adapter during the collection interval.

Key: storageAdapter|commandsAveraged_average

Storage Adapter|Read IOPS Average number of read commands issued per second by the storage adapter during the collection interval.

Key: storageAdapter|numberReadAveraged_average

Storage Adapter|Write IOPS Average number of write commands issued per second by the storage adapter during the collection interval.

Key: storageAdapter|numberWriteAveraged_average

Storage Adapter|Read Throughput (KBps) Rate of reading data by the storage adapter.

Key: storageAdapter|read_average

Storage Adapter|Read Latency (ms) This metric shows the average amount of time for a read operation by the storage adapter.

Use this metric to monitor the storage adapter read operation performance. A high value means that the ESXi is performing a slow storage read operation.

Total latency is the sum of kernel latency and device latency.

Key: storageAdapter|totalReadLatency_average

Storage Adapter|Write Latency (ms) This metric shows the average amount of time for a write operation by the storage adapter.

Use this metric to monitor the storage adapter write performance operation. A high value means that the ESXi is performing a slow storage write operation.

Total latency is the sum of kernel latency and device latency.

Key: storageAdapter|totalWriteLatency_average

Storage Adapter|Write Throughput (KBps) Rate of writing data by the storage adapter.

Key: storageAdapter|write_average

Storage Adapter|Demand Demand.

Key: storageAdapter|demand

Storage Adapter|Highest Latency Highest Latency.

Key: torageAdapter|maxTotalLatency_latest

Storage Adapter|Outstanding Requests Outstanding Requests.

Key: storageAdapter|outstandingIOs_average

Storage Adapter|Queue Depth Queue Depth.

Key: storageAdapter|queueDepth_average

Storage Adapter|Queue Latency (ms) The average time spent in the ESX Server VM Kernel queue per command.

Key: storageAdapter|queueLatency_average

Storage Adapter|Queued Queued.

Key: storageAdapter|queued_average

Storage Adapter|Peak Adapter Read Latency The highest read latency among the storage adapters. A high number indicates that one or more storage adapters are experiencing poor performance.

Key: storageAdapter|peak_adapter_readLatency

Storage Adapter|Peak Adapter Write Latency The highest write latency among the storage adapters. A high number indicates that one or more storage adapters are experiencing poor performance.

Key: storageAdapter|peak_adapter_writeLatency

Storage Metrics for Host Systems

Storage metrics provide information about storage use.

Metric Name Description
Storage|Total IOPS Average number of commands issued per second during the collection interval.

Key: storage|commandsAveraged_average

Storage|Read Latency (ms) Average amount of time for a read operation in milliseconds.

Key: storage|totalReadLatency_average

Storage|Read Throughput (KBps) Read throughput rate in kilobytes.

Key: storage|read_average

Storage|Read IOPS Average number of read commands issued per second during the collection interval.

Key: storage|numberReadAveraged_average

Storage|Total Latency (ms) Total latency in milliseconds.

Key: storage|totalLatency_average

Storage|Total Usage (KBps) Total throughput rate in kilobytes per second.

Key: storage|usage_average

Storage|Write Latency (ms) Average amount of time for a write operation in milliseconds.

Key: storage|totalWriteLatency_average

Storage|Write Throughput (KBps) Write throughput rate in kilobytes per second.

Key: storage|write_average

Storage|Write IOPS Average number of write commands issued per second during the collection interval.

Key: storage|numberWriteAveraged_average

Sensor Metrics for Host Systems

Sensor metrics provide information about host system cooling.

Metric Name Description
Sensor|Fan|Speed (%) Percent fan speed.

Key: Sensor|fan|currentValue

Sensor|Fan|Health State Fan health state.

Key: Sensor|fan|healthState

Sensor|Temperature|Temp C Fan temperature in centigrade.

Key: Sensor|temperature|currentValue

Sensor|Temperature|Health State Fan health state.

Key: Sensor|temperature|healthState

Power Metrics for Host Systems

Power metrics provide information about host system power use.

Metric Name Description
Power|Energy (Joule) Total energy used since last stats reset.

Key: power|energy_summation

Power|Power (Watt) Host power use in watts.

Key: power|power_average

Power|Power Cap (Watt) Host power capacity in watts.

Key: power|powerCap_average

Disk Space Metrics for Host Systems

Disk space metrics provide information about disk space use.

Metric Name Description
Diskspace|Number of Virtual Disks Number of virtual disks.

Key: diskspace|numvmdisk

Diskspace|Shared Used (GB) Used shared disk space in gigabytes.

Key: diskspace|shared

Diskspace|Snapshot Disk space used by snapshots in gigabytes.

Key: diskspace|snapshot

Diskspace|Virtual Disk Used (GB) Disk space used by virtual disks in gigabytes.

Key: diskspace|diskused

Diskspace|Virtual machine used (GB) Disk space used by virtual machines in gigabytes.

Key: diskspace|used

Diskspace|tTotal disk space used Total disk space used on all datastores visible to this object.

Key: diskspace|total_usage

Diskspace|Total disk spacey Total disk space on all datastores visible to this object.

Key: diskspace|total_capacity

Diskspace|Total provisioned disk space Total provisioned disk space on all datastores visible to this object.

Key: diskspace|total_provisioned .

Diskspace|Utilization (GB) Storage space utilized on connected vSphere datastores.

Key: diskspace|total_usage

Diskspace|Workload (%) Total storage space available on connected vSphere datastores.

Key: diskspace|total_capacity

Summary Metrics for Host Systems

Summary metrics provide information about overall host system performance.

Metric Name Description
Summary|Number of Running VMs This metric shows the number of VMs running on the host during the last metric collection time.

Large spikes of running VMs might be a reason for CPU or memory spikes as more resources are used in the host.

Number of Running VMs gives you a good indicator of how many requests the ESXi host must juggle. This excludes powered off VMs as they do not impact ESXi performance. A change in this number in your environment can contribute to performance problems. A high number of running VMs in a host also means a higher concentration risk, as all the VMs will become unavailable (or be relocated by HA) if the ESXi crashes.

Look for any correlation between spikes in the number of running VMs and spikes in other metrics such as CPU Contention/Memory Contention.

Key: summary|number_running_vms

Summary|Maximum Number of VMs Maximum number of virtual machines

Key: summary|max_number_vms

Summary|Number of vMotions This metric shows the number of vMotions that occurred in the host in the last X minutes.

The number of vMotions is a good indicator of stability. In a healthy environment, this number should be stable and relatively low.

Look for correlation between vMotions and spikes in other metrics such as CPU/Memory contention.

The vMotion should not create any spikes, however, the VMs moved into the host might create spikes in memory usage, contention and CPU demand and contention.

Key: summary|number_vmotion

Summary|Total Number of Datastores Total Number of Datastores.

Key: summary|total_number_datastores

Summary|Number of VCPUs on Powered On VMs Total number of VCPUs of Virtual Machines that are powered on.

Key: summary|number_running_vcpus

Summary|Total Number of VMs Total number of virtual machines.
Note: This is the total number of VMs excluding VM templates.

Key: summary|total_number_vms

Summary|Number of VM Templates Number of VM Templates

Key: summary|number_vm_templates

Summary|Consider for Balance Summary|Consider for Balance = 1 when the host is Powered On, Connected, not in Maintenance Mode, and not a Failover Host, otherwise it = -1

HBR Metrics for Host Systems

Host-based replication (HBR) metrics provide information about vSphere replication.

Metric Name Description
HBR|Replication Data Received Rate Replication Data Received Rate.

Key: hbr|hbrNetRx_average

HBR|Replication Data Transmitted Rate Replication Data Transmitted Rate.

Key: hbr|hbrNetTx_average

HBR|Replicated VM Count Number of replicated virtual machines.

Key: hbr|hbrNumVms_average

Cost Metrics for Host Systems

Cost metrics provide information about the cost.

Metric Name Description
Monthly Maintenance Total Cost Monthly total cost for maintenance.

Key: cost|maintenanceTotalCost

Monthly Host OS License Total Cost Monthly total cost for the host operating system license.

Key: cost|hostOslTotalCost

Monthly Network Total Cost Monthly total cost for network including cost of NIC cards associated with host.

Key: cost|networkTotalCost

Monthly Server Hardware Total Cost Monthly total cost for server hardware, based on amortized monthly value.

Key: cost|hardwareTotalCost

Monthly Facilities Total Cost Monthly total cost of facilities including real estate, power, and cooling.

Key: cost|facilitiesTotalCost

Monthly Server Labor Total Cost Monthly total cost for the server operating system labor.

Key: cost|hostLaborTotalCost

Monthly Server Fully Loaded Cost Monthly cost for a fully loaded server incorporating all cost driver values attributed to the server.

Key: cost|totalLoadedCost

MTD Server Total Cost Month to date cost for a fully loaded server incorporating all cost driver values attributed to the server.

Key: totalMTDCost

Server Accumulated Depreciation Month to date accumulated cost for a deprecated server.

Key: Cost|Server Accumulated Depreciation

Aggregated Daily Total Cost Daily aggregate daily total cost of the deleted VM present in the host system.

Key: Cost|aggregatedDailyTotalCost

Aggregated Deleted VM Daily Total Cost Daily aggregate cost of the deleted VM present in the host system.

Key: Cost|aggregatedDeletedVmDailyTotalCost

Disabled Instanced Metrics

The instance metrics created for the following metrics are disabled in this version of vRealize Operations Manager . This means that these metrics collect data by default but all the instanced metrics created for these metrics, do not collect data by default.

Metric Name
Datastore|Outstanding IO requests (OIOs)
Datastore|Read IOPS
Datastore|Read Latency (ms)
Datastore|Read Throughput (KBps)
Datastore|Total Latency (ms)
Datastore|Total Throughput (KBps)
Datastore|unmapIOs_summation
Datastore|unmapsize_summation
Datastore|Write IOPS
Datastore|Write Latency (ms)
Datastore|Write Throughput (KBps)
Disk|Physical Device Latency (ms)
Disk|Queue Latency (ms)
Disk|Read IOPS
Disk|Read Latency (ms)
Disk|Read Throughput (KBps)
Disk|Write IOPS
Disk|Write Latency (ms)
Disk|Write Throughput (KBps)
Net|Data Receive Rate (KBps)
Net|Data Transmit Rate (KBps)
Net|Error Packets Transmitted
Net|Packets Dropped (%)
Net|Packets Transmitted per second
Net|Received Packets Dropped
Net|Transmitted Packets Dropped
Net|Usage Rate (%)
Storage Adapter|Read IOPS
Storage Adapter|Read Latency (ms)
Storage Adapter|Read Throughput (KBps)
Storage Adapter|Write IOPS
Storage Adapter|Write Latency (ms)
Storage Adapter|Write Throughput (KBps)

Disabled Metrics

The following metrics are disabled in this version of vRealize Operations Manager . This means that they do not collect data by default.

You can enable these metrics in the Policy workspace. For more information, in VMware Docs search for Collect Metrics and Properties Details.

Metric Name Key
CPU|Idle (msec) cpu|idle_summation
CPU|Used (msec) cpu|used_summation
Datastore I/O|Average Observed Virtual Machine Disk I/O Workload datastore|vmPopulationAvgWorkload
Datastore I/O|Max Observed Number of Outstanding IO Operations datastore|maxObserved_OIO
Datastore I/O|Max Observed Read Rate (kbps) datastore|maxObserved_Read
Datastore I/O|Max Observed Reads per second datastore|maxObserved_NumberRead
Datastore I/O|Max Observed Write Rate (kbps) datastore|maxObserved_Write
Datastore I/O|Max Observed Writes per second datastore|maxObserved_NumberWrite
Datastore I/O|Maximum Observed VM Disk I/O Workload datastore|vmPopulationMaxWorkload
Network I/O|bytesRx (kbps) net|bytesRx_average
Network I/O|bytesTx (kbps) net|bytesTx_average
Network I/O|Demand (%) net|demand
Network I/O|Error Packets Received net|errorsRx_summation
Network I/O|Max Observed Received Throughput (kbps) net|maxObserved_Rx_KBps
Network I/O|Max Observed Throughput (kbps) net|maxObserved_KBps
Network I/O|Max Observed Transmitted Throughput (kbps) net|maxObserved_Tx_KBps
Network I/O|Packets Received per second net|packetsRxPerSec
Network I/O|Packets Dropped net|dropped
Summary|Workload Indicator summary|workload_indicator
vFlash Module|Latest Number of Active Vm Disks vflashModule|numActiveVMDKs_latest
Net|Received Packets Dropped Number of received packets dropped in the performance interval.

Key: net|droppedRx_summation

Net|Transmitted Packets Dropped Number of transmitted packets dropped in the performance interval.

Key: net|droppedTx_summation

Net|Packets Dropped (%) This metric shows the percentage of received and transmitted packets dropped during the collection interval.

This metric is used to monitor reliability and performance of the ESXi network. When a high value is displayed, the network is not reliable and performance suffers.

Key: net|droppedPct

Diskspace|Not Shared (GB) Unshared disk space in gigabytes.

Key: diskspace|notshared