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The DiskSpd Storage Performance Tool


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This package was approved by moderator gep13 on 8/6/2019.

DiskSpd is a highly customizable I/O load generator tool that can be used to run storage performance tests against files, partitions, or physical disks. DiskSpd can generate a wide variety of disk request patterns for use in analyzing and diagnosing storage performance issues, without running a full end-to-end workload. You can simulate SQL Server I/O activity or more complex, changing access patterns, returning detailed XML output for use in automated results analysis.

Select highlights include:
- Ability to target physical disks in addition to partitions and files
- Variable read/write IO percentage settings
- Custom CPU affinity options
- Consumable XML output option
- Synchronization and tracing functionality

For a few basic usage examples, see the DiskSpd page on the TechNet Gallery.
The full documentation is available as a wiki on GitHub.

To install The DiskSpd Storage Performance Tool, run the following command from the command line or from PowerShell:

C:\> choco install diskspd

To upgrade The DiskSpd Storage Performance Tool, run the following command from the command line or from PowerShell:

C:\> choco upgrade diskspd


  • tools\amd64\diskspd.exe.ignore
  • tools\arm64\diskspd.exe.ignore
  • tools\chocolateyInstall.ps1 Show
    $ErrorActionPreference = 'Stop'
    $targetPath = Join-Path -Path $Env:chocolateyPackageFolder -ChildPath tools
    $arguments = @{
        packageName    = 'diskspd'
        url            = ''
        url64bit       = ''
        checksum       = 'D02F6BE976C518D4134E62AF7F518BAAD6C7C81F924CAAFBEBA65BD0831CE139'
        checksumType   = 'sha256'
        checksum64     = 'D02F6BE976C518D4134E62AF7F518BAAD6C7C81F924CAAFBEBA65BD0831CE139'
        checksumType64 = 'sha256'
        unzipLocation  = $targetPath
    $ignoreFilePath = Join-Path -Path $targetPath -ChildPath "${Env:PROCESSOR_ARCHITECTURE}\diskspd.exe.ignore"
    if (Test-Path -Path $ignoreFilePath)
        Remove-Item -Path $ignoreFilePath
        Write-Warning "Unsupported processor architecture: $Env:PROCESSOR_ARCHITECTURE"
    Install-ChocolateyZipPackage @arguments
    Write-Output 'The DiskSpd documentation is available as a wiki on GitHub:'
  • tools\x86\diskspd.exe.ignore

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Package Maintainer(s)

Software Author(s)

  • Microsoft


2016 Microsoft


Release Notes


DiskSpd Release Notes


2.0.21: Initial package release for software version 2.0.21a.

Version History

Version Downloads Last updated Status
The DiskSpd Storage Performance Tool 2.0.17 3152 Tuesday, September 20, 2016 approved

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