Cables types for using hacmp

As Stefano says there is no need for a cross over cable. The only
point of that would be to remove the network/routers as SPF's.
Depending on the distance between the systems you may also want to
consider using a SAN (disk) heartbeat as well as, or in place of, the
serial connection. Both of these remove the TCP/IP stack as a SPF.
options are to use target mode SCSI or SSA connections.

11/2/05, braccos via ibm-aix-l <ibm-aix-l (AT) groups (DOT) ittoolbox.comwrote:
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Hi John,
>
As far as I know, it is not certified use of p520 with rs232 and HACMP.
The alternative thing (I asked the same to IBM) is to have an 8 port
extension on each cluster node and use a rs232 network between two of the
16
RS232 ports.
Use of cross cable is not necessary (you can have a switch in the middle of
the two network connections) for eathbit, many times I consider it
"unsecure".
If you have the 8 ports you need an rs232 male male 25 pin to implement the
cluster.
In this way you have an additional network using serial cables that is
always a good choice.
>
Stefano
>
>
Message
From: John CLARK via ibm-aix-l [mailto:ibm-aix-l (AT) Groups (DOT) ITtoolbox.com]
Sent: Tuesday, 01 November, 2005 20:11
To: braccos
Subject: [ibm-aix-l] Cables types for using hacmp
>
>
Dear friends,
>
I have two servers p520 wich i want to make them in a clustered
environment.
I had install hacmp on both servers.
But my question is : i need 2 cross cables rj45 and 1 serial cable RS232 ?
Is the type of cables is correct
>
Thank's a lot.
Best regards.
>
>
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