IBM SG24-5131-00 사용자 설명서

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

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.

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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Frame 
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Primary CWS

Backup CWS

SP Ethernet

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HACMP
Heartbeat

HACMP
Serial
Link