Recommendations for enabling a two node Standby Continuous Replication target based on a Single Copy Cluster (Exchange 2007 SP1)

In this blog post I will assume there exists a source cluster that consists of a two node Exchange 2007 SP1 Single Copy Cluster (SCC) hosted on either Windows 2003 or Windows 2008.  Standby Continuous Replication (SCR) was designed, in this type of deployment, to have a target that is a single node cluster.  Recently…

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Get-storagegroupcopystatus = Initializing

A question that I see a lot of, and causes come confusion out there, is why does get-storagegroupcopystatus report a status of initializing for replicated storage groups.  This status occurs when using any form of replication (LCR = local continuous replication / CCR = cluster continuous replication / SCR = standby continuous replication).   Some…

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Cluster stability issues with Exchange 2007 SP1 RU5 Single Copy Clusters (SCC) enabled for Standby Continuous Replication (SCR) on Windows 2008

In the recent weeks I’ve worked several cases where Exchange 2007 SP1 Single Copy Clusters with storage groups enabled for Standby Continuous Replication on Windows 2008 have had performance and network connectivity issues.  These issues have manifested themselves with the following symptoms:   Outlook clients appear to have no issues connecting to or using the…

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Inconsistent results when enabling standby continuous replication (SCR) in Exchange 2007 SP1.

A common question that I receive from customers is why do I experience inconsistent results when I enable a storage group in Exchange 2007 SP1 for standby continuous replication.  Usually the conversation focuses on why replication instances initially show failed and then soon after go healthy, or why the replication service reports that databases are…

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Exchange 2007 SP1 CCR- Windows 2008 Clusters – File Share Witness (FSW) failures.

Exchange 2007 SP1 Cluster Continuous Replication (CCR) clusters built on Windows 2008 most commonly uses the quorum model "Node Majority with File Share Witness".   In the past few weeks administrators have noticed that the file share resource is sometimes in a failed state.  Under normal circumstances this is not an issue since both nodes…

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The Windows Cluster service encountered and error during function OpenCluster.

When users attempt to use Exchange Management Shell (PowerShell) to perform management tasks against an Exchange 2007 SP1 Cluster on Windows 2008, certain functions return "The Windows Cluster service encountered an error during function OpenCluster".   In the following example I am using a new account I created in active directory.  This account is a…

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Exchange Replication Service (Exchange 2007 SP1) and Windows 2008 Clusters

If you are reading this blog post I also suggest you read the the following white paper:  "White Paper:  Continuous Replication Deep Dive" which can be found at http://technet.microsoft.com/en-us/library/cc535020.aspx.  This white paper does a fantastic job of covering the operations of the replication service.   Windows 2008 and Windows 2008 clustering introduce changes to the…

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Exchange 2007 SP1 RU5 – Error regarding replication between computers in different domains when using standby continuous replication (SCR).

Exchange 2007 SP1 RU5 introduces an error into the enable-storagegroupcopy -standbymachine commandlet when attempting to enable SCR on a storage group. The error is only present when there is a parent domain -> child domain active directory domain structure.  The issue does not occur if the active directory domain / forest is flat. When attempting…

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Windows 2008 / Exchange 2007 SP1 – ESE 522 errors on CCR passive or SCR target machine.

There are some users that are experiencing errors on CCR (cluster continuous replication) passive nodes or SCR (standby continuous replication) target machines.  Here is an example error: Event ID     : 522 Raw Event ID : 522 Record Nr.   : 3965 Category     : General Source       : ESE Type         : Error Generated    : 6/4/2008 4:48:58 PM Written     …

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