Sybase high availability requires the following hardware and system components:
Two homogenous, network systems with similar configurations in terms of resources like CPU, memory, and so on.
High availability subsystem package and the associated hardware.
Devices that are accessible to both nodes.
A logical volume manager (LVM) to maintain unique device pathnames across the cluster nodes.
Vendor provided mirroring, not Sybase mirroring, used for media failure protection.
See your hardware and operating system documentation for information about installing platform specific high availability software.
