New-SRGroup
Creates a replication group.
Syntax
Default (Default)
New-SRGroup
[[-ComputerName] <String>]
[-Name] <String>
[-VolumeName] <String[]>
[-LogVolumeName] <String>
[[-LogSizeInBytes] <UInt64>]
[[-Description] <String>]
[-EnableConsistencyGroups]
[-EnableEncryption]
[-EnableCompression]
[-Force]
[-CimSession <CimSession[]>]
[-ThrottleLimit <Int32>]
[-AsJob]
[<CommonParameters>]
Description
The New-SRGroup cmdlet creates a replication group. A replication group contains one or more
data volumes and an associated log volume. A replication group is the container for replication.
Examples
Example 1: Create a replication group
New-SRGroup -ComputerName "SR-SRV05" -Name "ReplicationGroup01" -VolumeName "D:" -LogVolumeName "E:"
This command creates a replication group for server named SR-SRV05. The command specifies the
replicated volume and the log volume. Because this command does not specify other parameters, the
replication group uses default values. Replication will not start until you run the
New-SRPartnership cmdlet.
Example 2: Create a replication group that uses custom properties
$Parameters = @{
ComputerName = 'SR-SRV05'
Name = 'ReplicationGroup02'
VolumeName = 'D:'
LogVolumeName = 'E:'
LogSizeInBytes = '32GB'
EnableEncryption = $True
}
New-SRGroup @Parameters
This command creates a replication group for server named SR-SRV05. The command specifies the
replicated volume and the log volume. The command also specifies a custom log size in GB and enables
replication traffic encryption. Replication will not start until you run New-SRPartnership.
This example uses splatting to pass parameter values from the $Parameters variable to the command.
Learn more about Splatting.
Parameters
-AsJob
Runs the cmdlet as a background job. Use this parameter to run commands that take a long time to complete.
Parameter properties
| Type: | SwitchParameter |
| Default value: | None |
| Supports wildcards: | False |
| DontShow: | False |
Parameter sets
(All)
| Position: | Named |
| Mandatory: | False |
| Value from pipeline: | False |
| Value from pipeline by property name: | False |
| Value from remaining arguments: | 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.
Parameter properties
| Type: | CimSession[] |
| Default value: | None |
| Supports wildcards: | False |
| DontShow: | False |
| Aliases: | Session |
Parameter sets
(All)
| Position: | Named |
| Mandatory: | False |
| Value from pipeline: | False |
| Value from pipeline by property name: | False |
| Value from remaining arguments: | False |
-ComputerName
Specifies a single replica host computer NetBIOS name or fully qualified domain name (FQDN) of a computer to belong to the replication group. The default value is the local computer.
Parameter properties
| Type: | String |
| Default value: | None |
| Supports wildcards: | False |
| DontShow: | False |
| Aliases: | CN |
Parameter sets
(All)
| Position: | 0 |
| Mandatory: | False |
| Value from pipeline: | False |
| Value from pipeline by property name: | True |
| Value from remaining arguments: | False |
-Description
Specifies a description for the replication group.
Parameter properties
| Type: | String |
| Default value: | None |
| Supports wildcards: | False |
| DontShow: | False |
| Aliases: | D |
Parameter sets
(All)
| Position: | 5 |
| Mandatory: | False |
| Value from pipeline: | False |
| Value from pipeline by property name: | False |
| Value from remaining arguments: | False |
-EnableCompression
Indicates that this Storage Replica group should use SMB compression for data transfer. SMB compression is only used with TCP, and isn't supported on both SMB Direct and RDMA networks.
Parameter properties
| Type: | SwitchParameter |
| Default value: | None |
| Supports wildcards: | False |
| DontShow: | False |
| Aliases: | ECMP |
Parameter sets
(All)
| Position: | 9 |
| Mandatory: | False |
| Value from pipeline: | False |
| Value from pipeline by property name: | False |
| Value from remaining arguments: | False |
-EnableConsistencyGroups
Indicates that consistency groups are enabled for the replication group that contains multiple volumes. Consistency groups provide write ordering. This can be important, for example, for replication of application data on multiple volumes.
If you enable consistency groups, it may decrease replication and write Input/Output performance.
Parameter properties
| Type: | SwitchParameter |
| Default value: | None |
| Supports wildcards: | False |
| DontShow: | False |
| Aliases: | EC |
Parameter sets
(All)
| Position: | 6 |
| Mandatory: | False |
| Value from pipeline: | False |
| Value from pipeline by property name: | False |
| Value from remaining arguments: | False |
-EnableEncryption
Indicates that this partnership should encrypt connection by using SMB AES-128-GCM. Enabling encryption can protect Storage Replica block transfers from man-in-the-middle interception or reading. Enabling encryption decreases performance.
Parameter properties
| Type: | SwitchParameter |
| Default value: | None |
| Supports wildcards: | False |
| DontShow: | False |
| Aliases: | EE |
Parameter sets
(All)
| Position: | 7 |
| Mandatory: | False |
| Value from pipeline: | False |
| Value from pipeline by property name: | False |
| Value from remaining arguments: | False |
-Force
Forces the command to run without asking for user confirmation.
Parameter properties
| Type: | SwitchParameter |
| Default value: | None |
| Supports wildcards: | False |
| DontShow: | False |
| Aliases: | F |
Parameter sets
(All)
| Position: | 100 |
| Mandatory: | False |
| Value from pipeline: | False |
| Value from pipeline by property name: | False |
| Value from remaining arguments: | False |
-LogSizeInBytes
Specifies the aggregate size of log files on each server in the replication group for the volumes that are associated with this replication group. The minimum size 512MB. You can specify a value by using the Windows PowerShell byte conversion capability, such as 4GB or 3200MB.
A value that is too small may cause decreased replication performance or increased recovery time after an interruption between computers.
Parameter properties
| Type: | UInt64 |
| Default value: | None |
| Supports wildcards: | False |
| DontShow: | False |
| Aliases: | LS |
Parameter sets
(All)
| Position: | 4 |
| Mandatory: | False |
| Value from pipeline: | False |
| Value from pipeline by property name: | True |
| Value from remaining arguments: | False |
-LogVolumeName
Specifies a drive letter, mount point path, or volume GUID where Storage Replication creates destination replication logs. The value must contain an NTFS-formatted volume or ReFS-formatted volume. The path must exist. The path cannot be a mapped drive or UNC path.
Storage Replication creates logs in the System Volume Information folder.
Parameter properties
| Type: | String |
| Default value: | None |
| Supports wildcards: | False |
| DontShow: | False |
| Aliases: | LV |
Parameter sets
(All)
| Position: | 3 |
| Mandatory: | True |
| Value from pipeline: | False |
| Value from pipeline by property name: | True |
| Value from remaining arguments: | False |
-Name
Specifies a name for the replication group.
Parameter properties
| Type: | String |
| Default value: | None |
| Supports wildcards: | False |
| DontShow: | False |
| Aliases: | N |
Parameter sets
(All)
| Position: | 1 |
| Mandatory: | True |
| Value from pipeline: | False |
| Value from pipeline by property name: | True |
| Value from remaining arguments: | 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.
Parameter properties
| Type: | Int32 |
| Default value: | None |
| Supports wildcards: | False |
| DontShow: | False |
Parameter sets
(All)
| Position: | Named |
| Mandatory: | False |
| Value from pipeline: | False |
| Value from pipeline by property name: | False |
| Value from remaining arguments: | False |
-VolumeName
Specifies an array of drive letters or mount point paths for the replica. The volumes must exist. The volumes cannot be mapped drives or UNC paths.
This is an ordered list. The order of volumes determines the order of replication. For more
information, see the DestinationVolumeName parameter of the New-SRPartnership cmdlet.
We do not recommend replicating different drive letters or mount point paths. The practice can cause application failures because of stored settings after a failover occurs.
Parameter properties
| Type: | String[] |
| Default value: | None |
| Supports wildcards: | False |
| DontShow: | False |
| Aliases: | VN |
Parameter sets
(All)
| Position: | 2 |
| Mandatory: | True |
| Value from pipeline: | False |
| Value from pipeline by property name: | True |
| Value from remaining arguments: | False |
CommonParameters
This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable, -InformationAction, -InformationVariable, -OutBuffer, -OutVariable, -PipelineVariable, -ProgressAction, -Verbose, -WarningAction, and -WarningVariable. For more information, see about_CommonParameters.