Product manual

GFI MailEssentials 16 Appendix 3 - Microsoft® Exchange 2003 Clusters | 278
16 Appendix 3 - Microsoft
®
Exchange 2003 Clusters
Use this appendix for instructions on how to install and uninstall GFI MailEssentials on Microsoft
®
Exchange 2003 clusters.
A cluster is a group of servers, technically known as nodes, working collectively as a single server.
Such environment provides high availability and fail over mechanisms to ensure constant availability
of resources and applications including email infrastructures. If one of the nodes in the cluster fails/is
not available, resources and applications switch to another cluster node.
NOTE
GFI MailEssentials can only be installed in an Active-Passive cluster environment. In an
active/passive cluster, a ‘failover’ mechanism ensures that whenever an active cluster
fails, one of the available passive nodes becomes active (i.e. takes over the role of the
failed node).
16.1 Installing GFI MailEssentials in a cluster environment
To install GFI MailEssentials on a Microsoft
®
Exchange Server 2000/2003 cluster ensure that:
Any running applications are closed.
Microsoft
®
Exchange Server 2000/2003 is installed in clustered mode.
An Exchange Virtual Server cluster group resource exists and includes, among other things, a
Physical Disk cluster resource.
All cluster nodes should be turned off, except the node where GFI MailEssentials will first be
installed.
1. Start the installation process and ensure that:
All files are installed on the shared hard drive
You are installing on the machine’s Default Website
2. On completion, start default website using IISManager.
3. Go to Control Panel > Administrative Tools > Cluster Administrator and create a new resource
group (Right click Groups > New > Group).
4. Key in GFIMailEssentials as the name and Services for GFIMailEssentials as
the description. Click Next.
5. Move all available nodes to Preferred Owners and click Finish.
6. Right click GFIMailEssentials >New> Resource.
7. Set the name as GFIList Server.
8. Set Resource Type to Generic Service and click Next.
9. Set all available nodes to possible owners and click Next.
10. Click Next.
11. Set service name to listserv and click next.