CRA turned off for TMSXE

[mlentfer]

Can anyone answer why Cisco "strongly recommends" turning off Calendar Repair Assistant (CRA) for Room Resources in TMSXE? Is this a Microsoft issue or a TMSXE issue?

[Manish Gogna]

Hi,

By default, the Calendar Repair assistant (CRA) is not set to run automatically in Exchange. CRA detects and corrects inconsistencies that occur for single and recurring calendar items for mailboxes that are homed on the Mailbox server that is running CRA. The purpose of this process is to make sure that recipients won't miss meetings or have unreliable meeting information. Nevertheless, Cisco recommends to  have this setting disabled for all resource mailboxes because of a simple reason, if CRA on Exchange is enabled, it could detect bookings from TMSXE as inconsistent bookings and could delete them.  It is a precautionary way to avoid inconsistency issues between bookings on TMS and Exchange.

Manish

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[darmckin]

Actually, Calendar Repair Assistant (CRA) is ENABLED by default on Exchange 2013, and Office 365. 

• To check if CRA is running on Exchange 2013, use the following powershell command:

Get-MailboxServer | Select Identity,CalendarRepairWorkCycle,CalendarRepairWorkCycleCheckpoint,CalendarRepairMode

• To disable CRA on all mailboxes in Exchange 2013:

Get-MailboxServer | Set-MailboxServer –CalendarRepairWorkCycle $null -CalendarRepairWorkCycleCheckpoint $null –CalendarRepairMode ValidateOnly