NAME
New-VirtualDisk
SYNOPSIS
Creates a new virtual disk in the specified storage pool.
SYNTAX
New-VirtualDisk [-StoragePoolFriendlyName] [-AllocationUnitSize ] [-AutoNumberOfColumns]
[-AutoWriteCacheSize] [-CimSession ] [-ColumnIsolation {PhysicalDisk | StorageEnclosure |
StorageScaleUnit | StorageChassis | StorageRack}] [-FaultDomainAwareness {PhysicalDisk | StorageEnclosure |
StorageScaleUnit | StorageChassis | StorageRack}] [-Interleave ] [-IsEnclosureAware ] [-MediaType
{HDD | SSD | SCM}] [-NumberOfColumns ] [-NumberOfDataCopies ] [-NumberOfGroups ]
[-OtherUsageDescription ] [-PhysicalDiskRedundancy ] [-PhysicalDisksToUse ]
[-ProvisioningType {Unknown | Thin | Fixed}] [-ReadCacheSize ] [-ResiliencySettingName ] [-Size
] [-StorageTiers ] [-StorageTierSizes ] [-ThrottleLimit ] [-Usage {Other |
Unrestricted | ReservedForComputerSystem | ReservedForReplicationServices | ReservedForMigrationServices |
LocalReplicaSource | RemoteReplicaSource | LocalReplicaTarget | RemoteReplicaTarget | LocalReplicaSourceOrTarget |
RemoteReplicaSourceOrTarget | DeltaReplicaTarget | ElementComponent | ReservedAsPoolContributer |
CompositeVolumeMember | CompositeVirtualDiskMember | ReservedForSparing}] [-UseMaximumSize] [-WriteCacheSize
] -FriendlyName []
New-VirtualDisk [-AllocationUnitSize ] [-AutoNumberOfColumns] [-AutoWriteCacheSize] [-CimSession
] [-ColumnIsolation {PhysicalDisk | StorageEnclosure | StorageScaleUnit | StorageChassis |
StorageRack}] [-FaultDomainAwareness {PhysicalDisk | StorageEnclosure | StorageScaleUnit | StorageChassis |
StorageRack}] [-Interleave ] [-IsEnclosureAware ] [-MediaType {HDD | SSD | SCM}]
[-NumberOfColumns ] [-NumberOfDataCopies ] [-NumberOfGroups ] [-OtherUsageDescription
] [-PhysicalDiskRedundancy ] [-PhysicalDisksToUse ] [-ProvisioningType {Unknown |
Thin | Fixed}] [-ReadCacheSize ] [-ResiliencySettingName ] [-Size ] [-StorageTiers
] [-StorageTierSizes ] [-ThrottleLimit ] [-Usage {Other | Unrestricted |
ReservedForComputerSystem | ReservedForReplicationServices | ReservedForMigrationServices | LocalReplicaSource |
RemoteReplicaSource | LocalReplicaTarget | RemoteReplicaTarget | LocalReplicaSourceOrTarget |
RemoteReplicaSourceOrTarget | DeltaReplicaTarget | ElementComponent | ReservedAsPoolContributer |
CompositeVolumeMember | CompositeVirtualDiskMember | ReservedForSparing}] [-UseMaximumSize] [-WriteCacheSize
] -FriendlyName -StoragePoolUniqueId []
New-VirtualDisk [-AllocationUnitSize ] [-AutoNumberOfColumns] [-AutoWriteCacheSize] [-CimSession
] [-ColumnIsolation {PhysicalDisk | StorageEnclosure | StorageScaleUnit | StorageChassis |
StorageRack}] [-FaultDomainAwareness {PhysicalDisk | StorageEnclosure | StorageScaleUnit | StorageChassis |
StorageRack}] [-Interleave ] [-IsEnclosureAware ] [-MediaType {HDD | SSD | SCM}]
[-NumberOfColumns ] [-NumberOfDataCopies ] [-NumberOfGroups ] [-OtherUsageDescription
] [-PhysicalDiskRedundancy ] [-PhysicalDisksToUse ] [-ProvisioningType {Unknown |
Thin | Fixed}] [-ReadCacheSize ] [-ResiliencySettingName ] [-Size ] [-StorageTiers
] [-StorageTierSizes ] [-ThrottleLimit ] [-Usage {Other | Unrestricted |
ReservedForComputerSystem | ReservedForReplicationServices | ReservedForMigrationServices | LocalReplicaSource |
RemoteReplicaSource | LocalReplicaTarget | RemoteReplicaTarget | LocalReplicaSourceOrTarget |
RemoteReplicaSourceOrTarget | DeltaReplicaTarget | ElementComponent | ReservedAsPoolContributer |
CompositeVolumeMember | CompositeVirtualDiskMember | ReservedForSparing}] [-UseMaximumSize] [-WriteCacheSize
] -FriendlyName -StoragePoolName []
New-VirtualDisk [-AllocationUnitSize ] [-AutoNumberOfColumns] [-AutoWriteCacheSize] [-CimSession
] [-ColumnIsolation {PhysicalDisk | StorageEnclosure | StorageScaleUnit | StorageChassis |
StorageRack}] [-FaultDomainAwareness {PhysicalDisk | StorageEnclosure | StorageScaleUnit | StorageChassis |
StorageRack}] [-Interleave ] [-IsEnclosureAware ] [-MediaType {HDD | SSD | SCM}]
[-NumberOfColumns ] [-NumberOfDataCopies ] [-NumberOfGroups ] [-OtherUsageDescription
] [-PhysicalDiskRedundancy ] [-PhysicalDisksToUse ] [-ProvisioningType {Unknown |
Thin | Fixed}] [-ReadCacheSize ] [-ResiliencySettingName ] [-Size ] [-StorageTiers
] [-StorageTierSizes ] [-ThrottleLimit ] [-Usage {Other | Unrestricted |
ReservedForComputerSystem | ReservedForReplicationServices | ReservedForMigrationServices | LocalReplicaSource |
RemoteReplicaSource | LocalReplicaTarget | RemoteReplicaTarget | LocalReplicaSourceOrTarget |
RemoteReplicaSourceOrTarget | DeltaReplicaTarget | ElementComponent | ReservedAsPoolContributer |
CompositeVolumeMember | CompositeVirtualDiskMember | ReservedForSparing}] [-UseMaximumSize] [-WriteCacheSize
] -FriendlyName []
DESCRIPTION
The New-VirtualDisk cmdlet creates a new virtual disk in the specified storage pool.
PARAMETERS
-AllocationUnitSize []
Specifies the allocation unit size to use when create the virtual disk.
Required? false
Position? named
Default value none
Accept pipeline input? false
Accept wildcard characters? false
-AutoNumberOfColumns []
Specifies that the number of columns used by the virtual disk should be automatically determined. Columns
represent the number of underlying physical disks across which one stripe of data for a virtual disk is
written.
Required? false
Position? named
Default value none
Accept pipeline input? false
Accept wildcard characters? false
-AutoWriteCacheSize []
Indicates that the cmdlet sets the size of the write-back cache to 1 GB for all types of storage spaces, which
include simple, mirror, and parity, to create from the pool. If the number or size of the solid-state drives
(SSDs) or journal disks in the storage pool is not sufficient and you specify a value of $True for this
parameter, the cmdlet sets the write-back cache size to 0 for simple and mirror spaces, and to 32 MB for
parity spaces.
Required? false
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-CimSession or Get-CimSession cmdlet. The default is the current session on the local
computer.
Required? false
Position? named
Default value none
Accept pipeline input? false
Accept wildcard characters? false
-ColumnIsolation []
Specifies at which level columns within a virtual disk should be isolated from each other. We recommend
omitting this parameter and using the defaults. The acceptable values for this parameter are:
-- PhysicalDisk
-- StorageScaleUnit
-- StorageChassis
-- StorageEnclosure
-- StorageRack
Required? false
Position? named
Default value none
Accept pipeline input? false
Accept wildcard characters? false
-FaultDomainAwareness []
Specifies at what level you want the virtual disk to be fault tolerant. The acceptable values for this
parameter are:
-- PhysicalDisk
-- StorageScaleUnit
-- StorageChassis
-- StorageEnclosure
-- StorageRack
For example, specify StorageScaleUnit to store data copies on separate nodes of a Storage Spaces Direct
cluster. This cmdlet refers to nodes of a Storage Spaces Direct cluster as storage scale units because you can
expand the scale of the cluster by adding more nodes.
Required? false
Position? named
Default value none
Accept pipeline input? false
Accept wildcard characters? false
-FriendlyName
Specifies the friendly name for the virtual disk. The friendly name is not required to be unique.
Required? true
Position? named
Default value none
Accept pipeline input? false
Accept wildcard characters? false
-Interleave []
Specifies the interleave value to use during the creation of a virtual disk. The interleave value represents
the number of bytes that is written to a single physical disk. Therefore, Interleave * NumberOfColumns yields
the size of one stripe of user data.
Required? false
Position? named
Default value none
Accept pipeline input? false
Accept wildcard characters? false
-IsEnclosureAware []
Specifies that the virtual disk should use enclosure awareness.
To support deployments that require an added level of fault tolerance, Storage Spaces can associate each copy
of data with a particular just-a-bunch-of-disk (JBOD) enclosure. This capability is known as enclosure
awareness. With enclosure awareness, if one enclosure fails or goes offline, the data remains available in one
or more alternate enclosures.
To use enclosure awareness, you must use JBODs that are certified for use with Storage Spaces and you must
have a sufficient number of JBODs and disks to support the resiliency types of the storage spaces you create
(generally you'll need three or four JBODs). For a list of certified JBODs, see the Windows Server Catalog.
For more information about enclosure awareness, see Storage Spaces Frequently Asked Questions.
Required? false
Position? named
Default value none
Accept pipeline input? false
Accept wildcard characters? false
-MediaType []
Specifies the media type of the storage tier. The cmdlet creates the storage tier for the media type that you
specify. The acceptable values for this parameter are:
-- SSD
-- SCM
-- HDD
Use SCM for storage-class memory such as NVDIMMs.
Required? false
Position? named
Default value none
Accept pipeline input? false
Accept wildcard characters? false
-NumberOfColumns []
Specifies the number of columns to use when allocating the virtual disk.
Required? false
Position? named
Default value none
Accept pipeline input? false
Accept wildcard characters? false
-NumberOfDataCopies []
Specifies the number of data copies to create. Specify 2 to create a two-way mirror, or 3 to specify a
three-way mirror or for dual parity.
Required? false
Position? named
Default value none
Accept pipeline input? false
Accept wildcard characters? false
-NumberOfGroups []
specifies the number of groups used by Local Reconstruction Coding (LRC) with a dual parity virtual disk. We
recommend omitting this parameter and using the defaults.
Required? false
Position? named
Default value none
Accept pipeline input? false
Accept wildcard characters? false
-OtherUsageDescription []
Specifies an OtherUsageDescription string for the virtual disk. You can use the OtherUsageDescription
parameter only if you set the Usage parameter to Other or do not include the Usage parameter.
Required? false
Position? named
Default value none
Accept pipeline input? false
Accept wildcard characters? false
-PhysicalDiskRedundancy []
Specifies the physical disk redundancy value to use during the creation of a virtual disk. This value
represents how many failed physical disks the virtual disk can tolerate without data loss.
-- For two-way mirror spaces, the virtual disk can tolerate 1 failed physical disk without data loss.
-- For three-way mirror spaces, the virtual disk can tolerate 2 failed physical disks without data loss.
-- For single-parity spaces, the virtual disk can tolerate 1 failed physical disk without data loss.
-- For dual-parity spaces the virtual disk can tolerate 2 failed physical disks without data loss.
Required? false
Position? named
Default value none
Accept pipeline input? false
Accept wildcard characters? false
-PhysicalDisksToUse []
Specifies an array of one or more PhysicalDisk objects. The PhysicalDisk objects represent the specific
physical disks on which to create this virtual disk.
Required? false
Position? named
Default value none
Accept pipeline input? false
Accept wildcard characters? false
-ProvisioningType []
Specifies the type of provisioning. The acceptable values for this parameter are:Fixed, or Thin. You must
specify Fixed for storage spaces that use storage tiers or a clustered storage pool.
Required? false
Position? named
Default value none
Accept pipeline input? false
Accept wildcard characters? false
-ReadCacheSize []
This parameter is no longer supported.
Required? false
Position? named
Default value none
Accept pipeline input? false
Accept wildcard characters? false
-ResiliencySettingName []
Specifies the resiliency setting, or storage layout, to use for the virtual disk. Acceptable values vary by
storage subsystem.
Allowed values for the Windows Storage subsystem are: Simple, Mirror, or Parity. By default, when you specify
Mirror, Storage Spaces creates a two-way mirror, and when you specify Parity, Storage Spaces creates a
single-parity space.
To create a three-way mirror space, specify 3 for the NumberofDataCopies parameter or 2 for the
PhysicalDiskRedundancy parameter.
To create a dual-parity space, specify 2 for the PhysicalDiskRedundancy parameter and Fixed provisioning for
the ProvisioningType parameter.
Required? false
Position? named
Default value none
Accept pipeline input? false
Accept wildcard characters? false
-Size []
Specifies the size of the virtual disk to create. The default unit is Bytes; to specify a different unit,
enter the size followed by one of the following unit values, with no spaces: Bytes, KB, MB, GB, or TB.
Required? false
Position? named
Default value none
Accept pipeline input? false
Accept wildcard characters? false
-StoragePoolFriendlyName
Specifies the friendly name of the storage pool in which to create the virtual disk. Enter a friendly name, or
use wildcard characters to enter a name pattern.
Required? true
Position? 1
Default value none
Accept pipeline input? True (ByPropertyName)
Accept wildcard characters? false
-StoragePoolName
Specifies the name of the storage pool in which to create the virtual disk. Enter the name of the storage pool
provided by the Storage Management Provider, or use wildcard characters to enter a name pattern.
Required? true
Position? named
Default value none
Accept pipeline input? True (ByPropertyName)
Accept wildcard characters? false
-StoragePoolUniqueId
Specifies the ID of the storage pool in which to create the virtual disk Enter an ID or use wildcard
characters to enter a pattern.
Required? true
Position? named
Default value none
Accept pipeline input? True (ByPropertyName)
Accept wildcard characters? false
-StorageTiers []
Specifies an array of storage tiers as a CIMInstance object. The cmdlet adds the storage tiers that you
specify to the virtual disk. To obtain a virtual disk object, use the Get-StorageTier cmdlet.
Required? false
Position? named
Default value none
Accept pipeline input? false
Accept wildcard characters? false
-StorageTierSizes []
Specifies an array of sizes of the storage tiers that you specify for the StorageTiers parameter.
Required? false
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 PowerShellr 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.
Required? false
Position? named
Default value none
Accept pipeline input? false
Accept wildcard characters? false
-Usage []
Specifies the intended usage of the virtual disk. You can specify one of the predefined descriptions, or use
the default value (Other) and instead use the OtherUsageDescription parameter to specify a custom value.
Required? false
Position? named
Default value none
Accept pipeline input? false
Accept wildcard characters? false
-UseMaximumSize []
Creates a virtual disk with the maximimum size possible given the available storage pool space and specified
parameters.
Required? false
Position? named
Default value none
Accept pipeline input? false
Accept wildcard characters? false
-WriteCacheSize []
Specifies the size of the write-back cache. The cmdlet creates the write-back cache of the size that you
specify when the cmdlet creates the virtual disk space.
The following describes the behavior of this parameter based on the value that you specify:
-- 1. If you do not specify this parameter, the cmdlet sets the value of the WriteCacheSizeDefault property
from the storage pool.
-- 2. The default setting of WriteCacheSizeDefault for a storage pool is Auto, which specifies that Windows
Server automatically selects the optimal write-back cache size for your configuration. You can change the
value of WriteCacheSizeDefault to a concrete value at any time.
-- 3. The Auto setting for WriteCacheSize functions as follows:
ÿÿÿÿÿa. If any of the following is true, Auto is set to 1 GB:
i. The storage pool contains at least N drives with enough capacity and you set the Usage parameter to
Journal. (N = 1 for simple spaces, N = 2 for two-way mirror and single parity, N = 3 for three-way mirror and
dual parity)
ii. The storage pool contains at least N drives with enough capacity and the media type of the virtual disk is
set to SSD (N = 1 for simple spaces, N = 2 for two-way mirror and single parity, N = 3 for three-way mirror
and dual parity)
ÿÿÿÿÿb. Otherwise, Auto is set to 0 (no log) for simple and mirror spaces, and 32 MB for parity spaces.
-- 4. If you specify Auto or 0 (zero) for this parameter and the storage space is not a parity space, the
cmdlet verifies that either 3.a.i or 3.a.ii is true. If either 3.a.i or 3.a.ii is not true, you cannot set
WriteCacheSize to Auto or 0.
a. The objective of these conditions is to help you avoid scenarios in which you force the creation of a
write-back cache in situations that result in slower performance.
Required? false
Position? named
Default value none
Accept pipeline input? false
Accept wildcard characters? false
This cmdlet supports the common parameters: Verbose, Debug,
ErrorAction, ErrorVariable, WarningAction, WarningVariable,
OutBuffer, PipelineVariable, and OutVariable. For more information, see
about_CommonParameters (https:/go.microsoft.com/fwlink/?LinkID=113216).
INPUTS
Microsoft.Management.Infrastructure.CimInstance#ROOT/Microsoft/Windows/Storage/MSFT_StoragePool
http://msdn.microsoft.com/library/windows/desktop/hh830551.aspx
You can use the pipeline operator to pass an MSFT_StoragePool object to the InputObject parameter.
Microsoft.Management.Infrastructure.CimInstance#ROOT/Microsoft/Windows/Storage/MSFT_StorageTier
http://msdn.microsoft.com/library/windows/desktop/dn535818(v=vs.85).aspx
You can use the pipeline operator to pass an array of MSFT_StorageTier objects to the StorageTiers parameter.
OUTPUTS
Microsoft.Management.Infrastructure.CimInstance#ROOT/Microsoft/Windows/Storage/MSFT_VirtualDisk
http://msdn.microsoft.com/library/windows/desktop/hh830584.aspx
The New-VirtualDisk cmdlet returns an object that represents the newly created virtual disk.
Example 1: Creating a 100 GB virtual disk using default settings
PS C:\> New-VirtualDisk -StoragePoolFriendlyName CompanyData -FriendlyName UserData -Size 100GB
This example creates a virtual disk named UserData from the storage pool named CompanyData that is 100GB in size,
using the storage pool default settings for unspecified parameters.
Example 2: Creating a thinly-provisioned mirror
PS C:\> New-VirtualDisk -StoragePoolFriendlyName CompanyData -FriendlyName DataWarehouse -ResiliencySettingName
Mirror -Size 42TB -ProvisioningType Thin
This example creates a virtual disk named DataWarehouse, which is 42TB in size, uses the Mirror resiliency
setting, and is thinly provisioned.
Example 3: Creating a three-way mirror
PS C:\> New-VirtualDisk -StoragePoolFriendlyName CompanyData -FriendlyName BusinessCritical -ResiliencySettingName
Mirror -NumberOfDataCopies 3 -Size 42TB -ProvisioningType Thin
This example creates a 42 TB thinly-provisioned virtual disk on the Windows Storage subsystem, using the Mirror
resiliency setting with three data copies. This creates a three-way mirror that is capable of tolerating two disk
failures).
Example 4: Creating a two-column mirror
PS C:\> New-VirtualDisk -StoragePoolFriendlyName CompanyData -FriendlyName BusinessCritical -ResiliencySettingName
Mirror - -Size 42TB -ProvisioningType Thin -NumberOfColumns 2
This example creates a thinly-provisioned virtual disk on the Windows Storage subsystem that uses two columns,
regardless of how many physical disks are in the storage pool above the two-disk minimum for a two-way mirror.
Example 5: Create a mirror space with storage tiers
PS C:\> $SSD = Get-StorageTier -FriendlyName *SSD*
PS C:\> $HDD = Get-StorageTier -FriendlyName *HDD*
PS C:\> Get-StoragePool CompanyData | New-VirtualDisk -FriendlyName "UserData01" -ResiliencySettingName "Mirror"
-StorageTiers $SSD, $HDD -StorageTierSizes 8GB, 32GB
This example creates a 40 GB fixed provisioning virtual disk on the Windows Storage subsystem. The virtual disk
uses the Mirror resiliency setting and storage tiers to store 8 GB of data on the SSD tier and 32 GB of data on
the HDD tier.
Example 6: Create a dual-parity space
PS C:\>New-VirtualDisk -StoragePoolFriendlyName "CompanyData" -FriendlyName "ArchivalData" -Size 50GB
-ProvisioningType Fixed -ResiliencySettingName "Parity" -PhysicalDiskRedundancy 2
This example creates a virtual disk on the Windows Storage subsystem that uses the dual-parity resiliency type to
help protect against two simultaneous disk failures and maximize capacity efficiency.
RELATED LINKS
Online Version: http://go.microsoft.com/fwlink/?LinkId=816439
Add-VirtualDiskToMaskingSet
Connect-VirtualDisk
Disconnect-VirtualDisk
Get-StoragePool
Get-StorageTier
Get-VirtualDisk
Hide-VirtualDisk
New-MaskingSet
Remove-VirtualDisk
Repair-VirtualDisk
Resize-VirtualDisk
Set-VirtualDisk
Show-VirtualDisk