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IBM Certification Study Guide AIX HACMP
need to have the frame supervisors support dual tty lines in order to get both
control workstations connected at the same time. Contact your IBM
representative for the neccessary hardware (see Figure 16 on page 184).
Both the tty network and the RS/6000 SP internal ethernet are extended to
the backup cws. In contrast to standard HACMP, you don’t need to have a
second ethernet adapter on the backup cws. In case you have only one, the
HACWS software will work with ip aliasing addresses on one adapter.
Figure 16. A Simple HACWS Environment
9.1.2 Software Requirements
Both of the control workstations must have the same software installed, that
is, they must be on the same AIX level, use the same PSSP software level
and have to have HACMP on the same level as well. For example, if you want
to use HACMP 4.3 for AIX, you have to use PSSP 3.1 and therefore AIX
Version 4.3.2 on the primary cws and on the backup cws.
9.1.3 Configuring the Backup CWS
The primary cws is configured exactly as usual, as far as the AIX and PSSP
software is concerned, as if there were no HACWS at all.
SP Ethernet
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