Circular Logging and Mailbox Database Copies

In the transaction logging mechanism used by Exchange, each database transaction is written first to a log file and then to the database file.  When a log file reaches a certain size (1 MB in Exchange 2010), it's renamed with the next generation sequence number, and a new log file is created. Over time, this…

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Witness Server Warning Message When Using Certain Database Availability Group Tasks

Recently, some customers reported that when they create a DAG, they get a warning message that states the following: The Exchange Trusted Subsystem is not a member of the local Administrators group on specified witness server <ServerName>. In these cases, the customer’s intended witness server was not an Exchange 2010 server.  As documented in TechNet,…

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Exchange 2010 SP1 and Windows Bugchecks

In case you aren’t familiar with the word, a bugcheck is one of several technical terms used to describe the situation in which an operating system halts because it has encountered an error that prevents it from safely continuing to operate.  Other technical terms we used to describe this condition include: Kernel panic System halt…

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RELEASED: Updated Mailbox Server Role Requirements Calculator, Jetstress 2010 RTM and Load Generator 2010 RTM

It’s only Wednesday, and it’s been quite a week for Exchange tool releases.  Seems like only yesterday we released Remote Desktop Connection Manager (RDCMan).  But, alas, that was Friday.  Since then, we’ve had three major updates to some Exchange “must-have” tools: Mailbox Server Role Requirements Calculator – We actually updated the calculators for both Exchange Server…

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Exchange Server 2010 Service Pack 1 Beta Available for Download

This morning, we released a Beta of Service Pack 1 for Exchange 2010 to the Microsoft Download Center.  You can download the beta from http://go.microsoft.com/fwlink/?linkid=193120. Exchange Server 2010 SP1 Beta includes archiving and discovery enhancements, a faster Outlook Web App, upgraded mobility features, and several additions to the Exchange Management Console. So what are you waiting…

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First Details of Exchange Server 2010 Service Pack 1 Available!

We’ve published a post on the Exchange Team Blog that provides the first public details about Exchange Server 2010 Service Pack 1 (SP1).  SP1 will of course include fixes and enhancements in the areas customers have helped us identify (including code from all of the Exchange 2010 post RTM update rollups we’ve released to date). …

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Update to Windows Server 2008 Brings Failure Behavior Change for the File Share Witness resource

My friend and colleague, Tim McMichael, recently blogged about a behvaior change that was made in Windows Server 2008 R2 that was back-ported to Windows Server 2008.  The basics of the behavior change are as follows: When the server hosting the File Share Witness becomes unavailable, the File Share Witness resource will fail and cause…

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Exchange 2010 Mailbox Server Role Requirements Calculator v3.2 Available

We just released an updated version of the  Exchange Server 2010 Mailbox Server Role Requirements Calculator.  This version includes several improvements and new features, as well as some important bug fixes.  For more information about the updates to the Exchange 2010 Mailbox Server Requirements Calculator, check out Ross’ blog post.

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Download Exchange 2010 RTM!

Download Microsoft Exchange Server 2010Microsoft Exchange Server 2010 helps you achieve new levels of reliability and performance by delivering features that simplify your administration, protect your communications, and meet demands for greater business mobility.  Download it today from http://go.microsoft.com/?linkid=9694890.

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