How to get the disk performance using PowerShell?

To get the disk performance using PowerShell, we need to use the Performance counter of the disk. There are performance counters available for the Physical disk or the logical disk. To check what the disks related counter sets are available we can use the below command,

Example

PS C:\> Get-Counter -ListSet "*disk*" | Select CounterSetName

Output

CounterSetName -------------- FileSystem Disk Activity Storage Spaces Virtual Disk LogicalDisk PhysicalDisk

We will use a Logical disk to get more information about it. We will retrieve its counter first.

Example

Get-Counter -ListSet LogicalDisk | Select -ExpandProperty Counter

Output

We need to retrieve the Disk read time counter,

Example

Get-Counter -Counter '\LogicalDisk(*)\% Disk Read Time'

Output

The below command will retrieve the 2 sample counts with 2 sample intervals.

Example

Get-Counter -Counter '\LogicalDisk(*)\% Disk Read Time' -MaxSamples 2 -SampleInterval 2

To get the continuous intervals, use the below command.

Example

Get-Counter -Counter '\LogicalDisk(*)\% Disk Read Time' -Continuous