Q1. In a highly available cluster, do all nodes have to run the same
level HACMP? Same version? Same release?
Q2. In a highly available cluster, do all nodes have to run the same
level of AIX?
Q3. When building a highly available cluster, is it possible to mix
RS/6000s and SP2 nodes? Of coure assuming that all nodes run
compatible levels of AIX and/or HACMP.
Q4. According to RPQ P91137, HACMP for SP2 is functionally equivalent
to
HACMP/6000 Version 2.1. According to its announcement letter, the
IBM 7137 is supported by HACMP/6000 Version 2.1. Is it correct
to say that HACMP for SP2 supports the 7137 in the same as does
HACMP/6000 2.1?
ANSWER
Hello, I will answer your questions in order:
Q1. In a highly available cluster, do all nodes have to run the same
level HACMP? Same version? Same release?
A1. The answer to this is Yes Yes Yes. All members of your cluster must
be running the same version and release of HACMP. The keepalive
packets from each release of HACMP are incompatible with other
releases.
Q2. In a highly available cluster, do all nodes have to run the same
level of AIX?
A2. The practical answer to this is Yes. While it is probably possible to
run different HACMP nodes with different PTF levels of AIX (within a
release), it is strongly recommended in the documentation and by me
that you keep all nodes in your cluster at the same AIX PTF level.
In the process of applying PTFs in your cluster, you will probably
apply them to one node and then to the other, bringing each node out
of the cluster while you apply its PTFs, but you should at the end
of that exercise have all nodes at the same level.
Q3. When building a highly available cluster, is it possible to mix
RS/6000s and SP2 nodes? Of course assuming that all nodes run
compatible levels of AIX and/or HACMP.
A3. Yes, you would be able to mix RS/6000 and SP/2 nodes in a cluster,
given they are at the same levels of AIX and HACMP.
Q4. According to RPQ P91137, HACMP for SP2 is functionally equivalent to
HACMP Version 2.1. According to its announcement letter, the
IBM 7137 is supported by HACMP/6000 Version 2.1. Is it correct to
say that HACMP for SP2 supports the 7137 in the same way as does
HACMP/6000 2.1?
A4. Yes.
S e a r c h - k e y w o r d s:
HACMP VERSION COMPATIBLE 7137 SP/2 AIX PTF
WWQA: ITEM: RTA000066242 ITEM: RTA000066242
Dated: 03/1996 Category: ITSAIHA6000
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