HP Serviceguard Extended Distance Cluster for Linux A.01.01 Release Notes, Third Edition, May 2009

Figure 1-1 Package failover sequence
In this figure, nodes N1 and N2 are in Datacenter 1 at Site 1, while N3 and N4 are in
Datacenter 2 in Site 2. In the package configuration file, you need to specify the failover
sequence such that N1 of Site 1 is followed by a node in Site 2. In this figure, you need
to specify that N1 is followed by N3. Similarly, specify that N2 of Site 1 is followed by
N4.
Table 1-2 describes the failover sequence that you need to specify to ensure that there
is not data loss when there is a site failure.
Table 1-2 Failover Sequence
SiteNode
Site 1N1
Site 2N3
Site 1N2
Site 2N4
or
12 HP Serviceguard Extended Distance Cluster for Linux A.01.01 Release Notes