Monday morning after a week off and surprise surprise, a call at 6am to say the system is down!
All servers are working - apart from one. The one that stores the user profiles (we discovered that our fail-over wasn't working, that blog will come later!). At the console we're met with the Ctrl+Alt+Del screen and are able to enter our credentials. We tried both domain and local users, but couldn't get further than either Please wait for the User Profile Service with the domain account or Loading Windows Personalisation with the local account. Luckily, with the local account, we could hit Ctrl+Alt+Del and bring up the Task manager.
With the Task Manager open you can select Services and see which services had started correctly and which ones were still in the Starting phase. For us, the Citrix MFCOM and IMA services were still Starting and gave us some clues as to what was happening. Cue a Safe Mode with networking restart and we were able to log in with the local account.
When we opened the Services.msc console we could see that since the last restart, the two services for Citrix mentioned above were now trying to log in with our Backup Exec account. A quick check on the other Citrix servers and we could see that it should be using the Network account. using the log on tab in the services properties, we were able to switch back to using the Network account.
*Quick Note* To change back to the Network account, open the service's Properties, choose the log on tab, click Browse and type in Network, then hit Enter - this will automatically change the account to Network. Remove the password in the boxes below this and Apply and close the properties box.
Complete this for both services and Restart the server. Hey Presto! Server and resources now work. All that's left is to investigate what (or WHO!) switched the log on account from Network to Backup Exec!
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