Simple MC/ServiceGuard clusters are usually configured
in a single data center, often in a single room, to provide protection
against failures in CPUs, interface cards, and software. Extended
MC/ServiceGuard clusters are specialized cluster configurations,
which allow a single cluster to extend across two or three separate
data centers for increased disaster tolerance. Depending on the
type of links employed, distances of up to 100 km between data centers
can be achieved.
This chapter discusses several types of extended distance
cluster that use basic MC/ServiceGuard technology with MirrorDisk/UX
and FibreChannel. Both two-data center and three data center architectures are
illustrated. The chapter discusses the following:
Printable version
