Server 2003 and Server 2008 Cluster Models are different in the following ways: Server 2003 utilizes the Shared Quorum Model for Single Copy Clusters and utilizes Majority Node Set for Cluster Continuous Replication Clusters. Server 2008 utilizes Majority Node Set for both Single Copy Clusters and Cluster Continuous Replication Clusters. When using Single Copy Clusters […]
Exchange 2010 introduced a vast amount of changes to the High Availability model with the addition of the Database Availability Group (DAG). Some features of the DAG are having up to 16 members, automatic database *over to another site as long as you still have quorum, and much more. Exchange also introduced Database Activation […]
Welcome to Part 3 of Exchange 2010 Site Resilient DAGs and Majority Node Set Clustering. In Part 1, I discussed what Majority Node Set Clustering is and how it works with Exchange Site Resilience when you have one DAG member in a Primary Site and one DAG member in a Failover Site. In Part […]
Welcome to Part 2 of Exchange 2010 Site Resilient DAGs and Majority Node Set Clustering. In Part 1, I discussed what Majority Node Set Clustering is and how it works with Exchange Site Resilience when you have one DAG member in a Primary Site and one DAG member in a Failover Site. In this […]
http://www.shudnow.net/2011/08/05/exchange-2010-site-resilient-dags-and-majority-node-set-clustering-part-1/ I’ve talked about this topic in some of my other articles but wanted to create an article that talks specifically about this model and show several different examples in a Database Availability Group (DAG)’s tolerance for node and File Share Witness (FSW) failure. Many people don’t properly understand how the Majority Node Set Clustering […]
Introduction In part three of this multi-part article, we created the log and database LUNs, changed the path for the logs and databases, created the DAG, and added the servers to the DAG. In this fourth part of this multi-part article uncovering Exchange 2010 Database Availability Groups (DAGs), I am going to show you how […]
Introduction In the second part of this multi-part article uncovering Exchange 2010 Database Availability Groups (DAGs), we prepared the two servers and installed Exchange 2010 on both. In this article, we will continue where we left off. We will move the databases to the LUNs attached to each server, create the DAG and test that […]
Introduction In the first part of this multi-part article uncovering Exchange 2010 Database Availability Groups (DAGs); we had a look at what Exchange 2007 and earlier versions provided when it comes to native high availability functionality for Mailbox servers. In this part of this multi-part series, I will provide the steps necessary in order to […]
High Availability Changes in Exchange Server 2010? With Exchange 2010, we no longer have the concept of Local Continuous Replication (LCR), Single Copy Clusters (SCC), Cluster Continuous Replication (CCR) or Standby Continuous Replication (SCR) for that matter. WHAT!? I hear some of you yell! Yes I am not kidding here. But to be more specific, […]
This is how to configure Multi Path I/O for iSCSI on Windows 2012 Server. I want to use this for our Hyper-V implementation to increase through put and redundancy. Setup iSCSI NICs In this server I have eight NICS, I have chosen to use two NICS for iSCSI and here you can see I have […]