Designing Disaster Tolerant High Availability Clusters, 10th Edition, March 2003 (B7660-90013)

Building a Metropolitan Cluster Using MetroCluster/SRDF
Preparing a Cluster for MetroCluster/SRDF
Chapter 4144
Figure 4-10 shows a 2 by 2 configuration with R1 volumes for pkg A and
pkg B on the Symmetrix frames located in Data Center A and R2
volumes and BCVs at Data Center B. Many of the examples given later
in this chapter are based on this configuration.
Figure 4-10 2 by 2 Node and Data Center Configuration
Figure 4-11 below shows a bidirectional 2 by 2 configuration with
additional packages on node3 and node4, and R1 and R2 volumes at both
data centers. In this configuration, R1 volumes for pkg A and pkg B are
node3
Data Center B
node5
Third Location
pkg A
node2
pkg B
node6
SRDF Links
Data Center A
(Arbitrators)
R1 vols
R1 vols
R2 vols
node4
R2 vols
node1
BCVs
SRDF Links