Cluster Shared Volume Performance Chart

The Disk chart displays historical statistics on disk usage for the selected Cluster Shared Volume.

CSV Performance Chart (Windows Server 2012/2012 R2/2016)

The following table provides information on predefined views and counters.

Chart View

Counter

Measurement Unit

Description

Usage

Disk/CSV: Read Bytes/sec

KB/s

Rate at which data is read from the volume in the Direct Access or Redirected Access mode.

Disk/CSV: Write Bytes/sec

KB/s

Rate at which data is written to the volume in the Direct Access or Redirected Access mode.

Disk/CSV: Total Bytes/sec

KB/s

Rate at which data is read from and written to the volume in the Direct Access or Redirected Access mode.

IOPS

Disk/CSV: Reads/sec

Number

Rate at which read operations were performed directly on a volume.

Disk/CSV: Writes/sec

Number

Rate at which write operations were performed directly on a volume.

Disk/CSV2012: IOPS

Number

Rate at which read and write operations were performed directly on a volume.

Latency

Disk/CSV: Read Latency

Millisecond

Average latency between the time a read request arrived to a file system and the time when it was completed.

Disk/CSV: Write Latency

Millisecond

Average latency between the time a write request arrived to a file system and the time when it was completed.

Disk/CSV: Latency

Millisecond

Average latency required to complete read and write operations on a volume.

Datastore Queue Length

Disk/CSV: Read Queue Length

Number

Number of read operations queued for a volume.

Disk/CSV: Write Queue Length

Number

Number of write operations queued for a volume.

Disk/CSV: Queue Length

Number

Number of read and write operations that were queued for a volume during the sample interval.

Direct/Redirected Usage

Disk/CSV: Redirected Bytes/sec

KB/s

Average amount of data transferred to or from a disk during write or read operations over the network stack.

Disk/CSV: Direct Bytes/sec

KB/s

Average amount of data transferred to or from a disk during write or read operations.

Direct/Redirected Latency

Disk/CSV: Direct Latency

Millisecond

Average latency required to for complete read and write operations on a volume in the Direct Access mode.

Disk/CSV: Redirected Latency

Millisecond

Average latency required to complete read and write requests on a volume in the Redirected Access mode.

Direct/Redirected IOPS

Disk/CSV: Direct IOPS

Number

Rate at which read and write operations were performed directly on a disk.

Disk/CSV: Redirected IOPS

Number

Rate at which read and write operations were redirected to a volume through the network.