CCR SP1

How to Upgrade a Clustered Mailbox Server in a CCR Environment to Exchange 2007 SP1

2tb cluster

A hotfix is available that adds support for GUID partition table (GPT) volumes that are larger than 2 terabytes on a Windows Server 2003-based server cluster

2K7SP1 CCR on 2k8 steps

Deploying an Exchange 2007 SP1 CCR Cluster on a Windows Server 2008 Failover Cluster – Part 1: Prerequisites & Configuring the failover cluster nodes