High availability requires:
Two homogenous, networked systems with similar configurations in terms of resources such as CPU, memory, and so on.
The high availability package and the associated hardware.
Devices that are accessible to both nodes.
A logical volume manager (LVM) to maintain unique device path names across the cluster nodes.
Volumes or disk suite objects on the multihost disks.
Third-party vendor mirroring rather than Sybase mirroring for media failure protection.
For more information about requirements for running Sun Cluster, see the Sun Cluster documentation.
See your hardware and operating system documentation for information about installing platform-specific high availability software.
