Exchange Server 2010 – Resolving Calendar Attendant\Requests Failed

calendarexchange-2010exchange-serverperformance-countersperformance-monitoring

On my Exchange mailbox server, I am receiving the alert:

MSExchange Calendar Attendant\Requests Failed

Or in Solarwinds Orion:

Requests Failed (Calendar Attendant) for Exchange 2010 Mailbox Role Counters (Advanced) on *servername*

All I know is this figure should be 0 at all times. Currently I am at 2, and this is the only alert on the Exchange servers. No where I can find how to resolve this. How can I fix this?

Thank you.

Best Answer

How do you know for sure that this figure should be 0 at all times?

I would take a look at this technet article:

http://technet.microsoft.com/en-us/library/ff360647(v=exchg.140).aspx

It lists a variety of solutions on the bottom. Also note that this article specifies 100 as the warning threshold, not 0.