xExchDatabaseAvailabilityGroup Should Check If Failover-Clustering Is Installed Before Modifying DAG Membership

[mhendric]

The xExchDatabaseAvailabilityGroup resource does not currently check if a server has the Failover-Clustering feature installed before trying to add a server to a DAG. We should add a check to ensure that the feature has an Install State of Installed before proceeding. If it's in a state of InstallPending, we should force a reboot. We also may want to add an option on the resource to install the Failover-Clustering feature automatically.

PRE INSTALLATION:

PS > Get-WindowsFeature fail*

Display Name Name Install State

---

[ ] Failover Clustering Failover-Clustering Available

PS > Get-WindowsFeature fail* | Install-WindowsFeature

Success Restart Needed Exit Code Feature Result

---

True Yes SuccessRest... {Failover Clustering} WARNING: You must restart this server to finish the installation process. WARNING: Windows automatic updating is not enabled. To ensure that your newly-installed role or feature is automatically updated, turn on Windows Update.

POST INSTALLTION, PRE REBOOT:

PS > Get-WindowsFeature fail*

Display Name Name Install State

---

[X] Failover Clustering Failover-Clustering InstallPending

POST REBOOT:

PS > Get-WindowsFeature fail*

Display Name Name Install State

---

[X] Failover Clustering Failover-Clustering Installed

[mhendric]

I got this one.

[mhendric]

Resolved in https://github.com/PowerShell/xExchange/pull/183