xDFSReplicationMembership - add support for modifying staging quota

[murrahjm]

Details of the scenario you tried and the problem that is occurring

When creating or modifying a DFS replication group membership, the staging quota size is left at the default of 4gb

Verbose logs showing the problem

Suggested solution to the issue

Add parameter to the xDFSReplicationGroup to allow setting the staging quota size

The DSC configuration that is used to reproduce the issue (as detailed as possible)

        DFSReplicationGroupMembership RGWebSiteMembershipHub
        {
            GroupName = 'WebSite'
            FolderName = 'WebSiteFiles'
            ComputerName = $HubComputerName
            ContentPath = 'd:\inetpub\wwwroot\WebSiteFiles'
            StagingPathQuotaInMB = 81960 # Proposed new parameter
            PrimaryMember = $true
            PSDSCRunAsCredential = $Credential
            DependsOn = '[DFSReplicationGroupFolder]RGWebSiteFolder'
        } # End of RGWebSiteMembershipHub Resource

The operating system the target node is running

OsName : Microsoft Windows 10 Enterprise
OsOperatingSystemSKU : EnterpriseEdition
OsArchitecture : 64-bit
WindowsVersion : 1709
WindowsBuildLabEx : 16299.431.amd64fre.rs3_release_svc_escrow.180502-1908
OsLanguage : en-US
OsMuiLanguages : {en-US}

Version and build of PowerShell the target node is running

Name Value

---

PSVersion 5.1.16299.611
PSEdition Desktop
PSCompatibleVersions {1.0, 2.0, 3.0, 4.0...}
BuildVersion 10.0.16299.611
CLRVersion 4.0.30319.42000
WSManStackVersion 3.0
PSRemotingProtocolVersion 2.3
SerializationVersion 1.1.0.1

Version of the DSC module that was used ('dev' if using current dev branch)

'dev'

[PlagueHO]

Awesome idea - thanks for raising this @murrahjm. I've tagged this as help wanted. I've got a bit of a long backlog but I'll try and get to this as soon as I have time.