Datastore Performance Chart

The Datastore chart displays historical statistics for all datastores (including vSAN datastores) used by the selected infrastructure component and its child objects.

Datastore Performance Chart

Host

The following table provides information on predefined views and counters that apply to hosts.

Chart View

Counter

Measurement Unit

Description

Datastore IOPS

Disk/ESXi: Datastore I/O

Number

Aggregate number of I/O operations on a datastore.

Disk/ESXi: Datastore Read I/O

Number

Average number of read commands per second to a datastore.

Disk/ESXi: Datastore Write I/O

Number

Average number of write commands per second to a datastore.

Datastore Usage Rates

Disk/ESXi: Datastore Read Rate

MB/s

Rate at which data is read from a datastore.

Disk/ESXi: Datastore Usage

MB/s

Sum of read and write rates to a datastore.

Disk/ESXi: Datastore Write Rate

MB/s

Rate at which data is written to a datastore.

Datastore Latency

Disk/ESXi: Datastore Highest Latency

Millisecond

Highest latency value across all datastores used by a host.

Disk/ESXi: Datastore Latency Observed by VMs

Millisecond

Average datastore latency as seen by VMs.

Disk/ESXi: Datastore Read Latency

Millisecond

Average amount of time that a read from the datastore takes.

Disk/ESXi: Datastore Write Latency

Millisecond

Average amount of time that a write operation to a datastore takes.

Datastore Issues

Disk/ESXi: Datastore Bus Resets

Number

Number of SCSI bus reset commands.

Disk/ESXi: Datastore Command Aborts

Number

Number of aborted SCSI commands.

Disk/ESXi: Datastore Maximum Queue Depth

Number

Number of outstanding requests to a storage device.

Virtual Machine

The following table provides information on predefined views and counters that apply to VMs.

Chart View

Counter

Measurement Unit

Description

Datastore IOPS

Datastore I/O

Number

Aggregate number of I/O operations on a datastore.

Datastore Read I/O

Number

Average number of read commands per second to a datastore.

Datastore Write I/O

Number

Average number of write commands per second to a datastore.

Disk/vSAN: Recovery Write I/O

Number

Average number of write commands per second to a vSAN datastore disk that contains copy of VM data.

Datastore Usage Rates

Datastore Read Rate

MB/s

Rate at which data is read from a datastore.

Datastore Usage

MB/s

Sum of read and write rates for a datastore.

Datastore Write Rate

MB/s

Rate at which data is written to a datastore.

Disk/vSAN: Recovery Write Rate

MB/s

Rate of writing data to a vSAN datastore disk that stores copy of VM data.

Datastore Latency

Datastore Highest Latency

Millisecond

Highest latency value across all datastores used by a host.

Datastore Read Latency

Millisecond

Average amount of time that a read operation from a datastore takes.

Datastore Write Latency

Millisecond

Average amount of time that a write operation to a datastore takes.

Disk/vSAN: Recovery Write Latency

Millisecond

Average amount of time that a write operation to a vSAN datastore disk storing copy of VM data takes.

Datastore Issues

Datastore Bus Resets

Number

Number of SCSI bus reset commands.

Datastore Command Aborts

Number

Number of aborted SCSI commands.

For objects that are parent to ESXi hosts and VMs, Veeam ONE Monitor displays rollup values.
Charts for folders, clusters, datacenters, vCenter Servers display rollup values for all hosts in the container. Chart for a resource pool displays rollup values for all VMs in the resource pool.