Optimize-Volume

Optimizes a volume, performing such tasks as defragmentation and trim.

Syntax

Optimize-Volume
        [-DriveLetter] <Char[]>
        [-Analyze]
        [-AsJob]
        [-CimSession <CimSession[]>]
        [-Defrag]
        [-ReTrim]
        [-SlabConsolidate]
        [-ThrottleLimit <Int32>]
        [-Confirm]
        [-WhatIf]
Optimize-Volume
        [-Analyze]
        [-AsJob]
        [-CimSession <CimSession[]>]
        [-Defrag]
        [-ReTrim]
        [-SlabConsolidate]
        [-ThrottleLimit <Int32>]
        -ObjectId <String[]>
        [-Confirm]
        [-WhatIf]
Optimize-Volume
        [-Analyze]
        [-AsJob]
        [-CimSession <CimSession[]>]
        [-Defrag]
        [-ReTrim]
        [-SlabConsolidate]
        [-ThrottleLimit <Int32>]
        -InputObject <CimInstance[]>
        [-Confirm]
        [-WhatIf]
Optimize-Volume
        [-Analyze]
        [-AsJob]
        [-CimSession <CimSession[]>]
        [-Defrag]
        [-ReTrim]
        [-SlabConsolidate]
        [-ThrottleLimit <Int32>]
        -Path <String[]>
        [-Confirm]
        [-WhatIf]
Optimize-Volume
        [-Analyze]
        [-AsJob]
        [-CimSession <CimSession[]>]
        [-Defrag]
        [-ReTrim]
        [-SlabConsolidate]
        [-ThrottleLimit <Int32>]
        -FileSystemLabel <String[]>
        [-Confirm]
        [-WhatIf]

Description

The Optimize-Volume cmdlet optimizes a volume, performing such tasks as defragmentation and trim.

If no parameter is specified, then the default operation will be performed per the drive type as follows.

Defragment (drive type) : HDD

Slab : YES

Consolidation : NO

TRIM : NO

Defragment (drive type) : SSD

Slab : NO

Consolidation : NO

TRIM : YES

Defragment (drive type): VHD

Slab : YES

Consolidation : NO

TRIM : NO

Defragment (drive type): diff VHD

Slab : NO

Consolidation : NO

TRIM : YES

Defragment (drive type): Thinly Provisioned (Storage Spaces, thinly provisioned SAN Virtual Disk, Dynamic VHD)

Slab : NO

Consolidation : YES

TRIM : YES

Examples

Example 1: Perform TRIM optimization

PS C:\>Optimize-Volume -DriveLetter H -ReTrim -Verbose

This example optimizes drive H by re-sending Trim requests. This is useful on SSD media, and thinly provisioned storage.

Example 2: Analyze a volume

PS C:\>Optimize-Volume -DriveLetter H -Analyze -Verbose

This example reports only the current optimization state of drive H.

Example 3: Defragment a volume

PS C:\>Optimize-Volume -DriveLetter H -Defrag -Verbose

This example defragments drive H.

Example 4: Perform slab consolidation

PS C:\>Optimize-Volume -DriveLetter H -SlabConsolidate -Verbose

This example performs slab consolidation on the storage space backing volume H.

Required Parameters

-DriveLetter

Specifies the drive letter of the volume to optimize.

Type:Char[]
Position:1
Default value:None
Accept pipeline input:True (ByPropertyName)
Accept wildcard characters:False
-FileSystemLabel

Specifies the file system label of the volume to optimize.

Type:String[]
Position:Named
Default value:None
Accept pipeline input:True (ByPropertyName)
Accept wildcard characters:False
-InputObject

Accepts an object from the pipeline as input.

Type:CimInstance[]
Position:Named
Default value:None
Accept pipeline input:True (ByValue)
Accept wildcard characters:False
-ObjectId

Specifies the ID of the volume to optimize.

Type:String[]
Aliases:Id
Position:Named
Default value:None
Accept pipeline input:True (ByPropertyName)
Accept wildcard characters:False
-Path

Specifies the path of the volume to optimize.

Type:String[]
Position:Named
Default value:None
Accept pipeline input:True (ByPropertyName)
Accept wildcard characters:False

Optional Parameters

-Analyze

Analyzes the volume specified for defrag or optimize statistics. Performs analysis only and reports the current optimization state of the volume.

Type:SwitchParameter
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-AsJob

ps_cimcommon_asjob

Type:SwitchParameter
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-CimSession

Runs the cmdlet in a remote session or on a remote computer. Enter a computer name or a session object, such as the output of a New-CimSessionhttp://go.microsoft.com/fwlink/p/?LinkId=227967 or Get-CimSessionhttp://go.microsoft.com/fwlink/p/?LinkId=227966 cmdlet. The default is the current session on the local computer.

Type:CimSession[]
Aliases:Session
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-Confirm

Prompts you for confirmation before running the cmdlet.

Type:SwitchParameter
Position:Named
Default value:False
Accept pipeline input:False
Accept wildcard characters:False
-Defrag

Runs the defragment function on the specified volume, consolidating fragmented files to improve read and write performance.

Type:SwitchParameter
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-ReTrim

Generates TRIM and Unmap hints for all previously used sectors of the volume, notifying the underlying storage that the sectors are no longer needed and can be purged. This can recover unused capacity on thinly provisioned drives and on solid state drives (SSDs).

Type:SwitchParameter
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-SlabConsolidate

Optimizes the volume per the supplied slab size and alignment to reduce the number of slabs on which the volumes is mounted. Perfoms slab consolidation on the storage to optimize slab allocations.

Type:SwitchParameter
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-ThrottleLimit

Specifies the maximum number of concurrent operations that can be established to run the cmdlet. If this parameter is omitted or a value of 0 is entered, then Windows PowerShell® calculates an optimum throttle limit for the cmdlet based on the number of CIM cmdlets that are running on the computer. The throttle limit applies only to the current cmdlet, not to the session or to the computer.

Type:Int32
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-WhatIf

Shows what would happen if the cmdlet runs. The cmdlet is not run.

Type:SwitchParameter
Position:Named
Default value:False
Accept pipeline input:False
Accept wildcard characters:False

Inputs

Microsoft.Management.Infrastructure.CimInstance#ROOT/Microsoft/Windows/Storage/MSFT_Volume

You can pipe a Volume object to the InputObject parameter.