Using parallel accessed SCSI disks as cluster storage, while supported on Windows Server 2003, should not be used on Windows Server 2008. Make sure you have a NAS, SAN, or iSCSI storage solution before upgrading your Windows Server 2003 Failover Cluster to Windows Server 2008.

If you use an iSCSI attached storage device, problems can occur with the disk arbitration during Ingres installation. Restarting the cluster service should solve them, in most cases. For example, if Ingres installation fails during creation of the log file or the system databases, restart the cluster service by running net stop clussvc and net start clussvc.

Do not start multiple nodes at the same time. There should be a 30-second delay between the startup of each node.