Stuff I'm Up To

Technical Ramblings

Exchange 2013 Error: “The Microsoft Exchange Diagnostics service terminated unexpectedly” — January 24, 2017

Exchange 2013 Error: “The Microsoft Exchange Diagnostics service terminated unexpectedly”

Had this showing up regularly in the event log of one of our Exchange servers. A quick delete of the following keys and a reboot all sorted:

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tree\Microsoft\Windows\PLA

ExchangeDiagnosticsDailyPerformanceLog

and

ExchangeDiagnosticsPerformanceLog

References: http://exchangeitup.blogspot.co.uk/2016/01/exchange-2013-error-microsoft-exchange.html

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Putting Exchange into Maintenance Mode — January 23, 2017

Putting Exchange into Maintenance Mode

Before performing any type of software or hardware maintenance on a DAG member, you should first place the DAG member into maintenance mode. This involves moving all active databases off the server and blocking active databases from moving to the server.

https://technet.microsoft.com/en-us/library/74be3f97-ec0f-4d2a-b5d8-7770cc489919(v=exchg.150)#Pm