The Set-DfsnRoot cmdlet changes settings for a Distributed File System (DFS) namespace.
You can use this cmdlet to enable or disable the following settings:
Site costing
In-site referrals
Access-based enumeration
Root scalability
Target failback
You can also add or change a descriptive comment, change the state of the DFS namespace, or set the
Time to Live (TTL) interval for referrals.
To manage the DFS namespace, you can use this cmdlet to grant or revoke permissions to users or user
groups. Users who have these permissions can add, remove, and modify namespace folders and folder
targets for the DFS namespace.
This command modifies settings for the DFS namespace that has the path
\\Contoso\AccountingResources. The command enables root scalability, which allows the DFS
namespace server to poll ___domain controllers for updates. The command also sets the referral TTL
interval to 900 seconds.
Parameters
-AsJob
Runs the cmdlet as a background job. Use this parameter to run commands that take a long time to
complete.
The cmdlet immediately returns an object that represents the job and then displays the command
prompt. You can continue to work in the session while the job completes. To manage the job, use the
*-Job cmdlets. To get the job results, use the
Receive-Job cmdlet.
For more information about Windows PowerShell background jobs, see
about_Jobs.
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.
Indicates whether a DFS namespace uses Access-based enumeration. If this value is $true, a DFS
namespace server shows a user only the files and folders that the user can access.
Indicates whether a DFS namespace server provides a client only with referrals that are in the same
site as the client. If this value is $true, a DFS namespace server provides only in-site
referrals. If this value is $false, the DFS namespace server provides in-site referrals first,
then other referrals.
Indicates whether a DFS namespace uses root scalability mode. If this value is $true, DFS
namespace servers connect to the nearest ___domain controllers for periodic namespace updates. If this
value is $false, the servers connect to the primary ___domain controller (PDC) emulator.
Indicates whether a DFS namespace uses cost-based selection. If a client cannot access a folder
target in-site, a DFS namespace server selects the least resource-intensive alternative. If you
provide a value of $true for this parameter, the DFS namespace favors high-speed links over wide
area network (WAN) links.
Indicates whether a DFS namespace uses target failback. If a client attempts to access target link
on a server and that server is not available, the client fails over to another referral. If this
value is $true, once the first server becomes available again, the client fails back to the first
server. If this value is $false, the DFS namespace server does not require the client to fail back
to the preferred server.
Specifies an array of accounts. This cmdlet grants management permissions the users and user groups
specified for the DFS namespace. Users can add, remove, and modify namespace folders and folder
targets.
Specifies the state of the DFS namespace root. The acceptable values for this parameter are:
Online
Offline
Clients do not receive referrals for a DFS namespace folder that is offline. If you set a namespace
root to a value of Offline, the entire namespace becomes inaccessible.
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.
Specifies a TTL interval, in seconds, for referrals. Clients store referrals to root targets for
this length of time. The default TTL interval for root referrals is 300 seconds.
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.