Datastore Performance Chart

In this article

    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.