Building Disaster Tolerant Serviceguard Solutions Using Metrocluster with EMC SRDF
Building a Metrocluster Solution with EMC SRDF
Chapter 5 299
Building a Metrocluster Solution with EMC
SRDF
Setting up 1 by 1 Configurations
The most common Symmetrix configuration used with Metrocluster with
EMC SRDF is a 1 by 1 configuration in which there is a single
Symmetrix frame at each Data Center. This section describes how to set
up this configuration using EMC Solutions Enabler and HP-UX
commands. It is assumed the Symmetrix CLI database is already set up
on each node, as described in the previous section “Preparing the Cluster
for Data Replication.”
A basic 1 by 1 configuration is shown in Figure 5-7, which is a graphical
view of the data in Table 5-2.
Figure 5-7 Mapping HP-UX Device File Names to Symmetrix Units
Creating Symmetrix Device Groups
A single Symmetrix device group must be defined for each package on
each node that is connected to the Symmetrix. The following procedure
must be done on each node that may potentially run the package:
Symmetrix ID 95
Data Center A
Node 1
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Symmetrix ID 50
Data Center B
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