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The basic clustering requirements for Exchange or
SQL applications
The following listed here are basic clustering
requirements for both Exchange and SQL applications.
Software Requirements
• Windows Server 2003, Datacenter Edition or Enterprise Edition, or above
installed on all nodes.
• Exchange Server.
• A name resolution method such as Domain Name System (DNS).
• An existing domain. All cluster nodes must be in the same domain.
Hardware Requirements
• Hardware that conforms with the cluster service Hardware Compatibility
List (HCL). Please refer to Windows Hardware and Driver Central Web site
(http://go.microsoft.com/fwlink/?LinkId=31539) and search on clustering.
• Two NICs per node.
• Two storage array controllers.
Network Requirements
• Access to a domain controller.
• A statically assigned IP address for each network adapter on each node.
• Nodes that connect to two physically independent networks:
• A public interface supporting both node-to-node communication and
client-to-cluster communication.
• A private interface reserved for internal communication between the two
nodes.
• A dedicated private subnet for the cluster network.
• A separate network for the storage array (a requirement when using the
Intransa Storage System).
Shared Disk Requirements
• All shared disks must be physically attached to the same bus.
• A dedicated quorum disk (necessary for cluster management) of at least 50
MB must be available. A partition of at least 500 MB is recommended for
optimal NTFS file system performance.
• All disks must be configured as basic (not dynamic).
• All disks must be formatted with NTFS.
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