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Operating Systems AIX hacmp in a 7 node configuration ? Post 302348341 by zxmaus on Friday 28th of August 2009 03:36:14 AM
Old 08-28-2009
hacmp in a 7 node configuration ?

Hi Guys,

I have to design a multinode hacmp cluster and am not sure if the design I am thinking of makes any sense.
I have to make an environment that currently resides on 5 nodes more resilient but I have the constrain of only having 4 frames. In addition the business doesnt want to pay for more lpars than they have to. So I would like to go for a 5 active + 2 spare cluster with following setup:

Quote:
F1: A1 + A2
F2: A3 + S1
F3: A4 + S2
F4: A5

A1 could failover to S1
A2 could failover to S2
A3 could failover to S2
A4 could failover to S1
A5 could failover to S1 or S2 (this is the most important environment).
A1 has higher need in resources so I would give S1 the same amount of resources A1 has and all others need about half as much resources, so S2 would have their amount.

Do I have to make all storage (about 3-5 TB / lpar) visible to all nodes or just to the nodes that are intended to takeover the resources.

Does this sound sensible or do I forget anything in this setup? Does anyone maybe run a similar setup and can share his experiences?

I appreciate your comments.

Kind regards
zxmaus

Last edited by zxmaus; 08-28-2009 at 04:41 AM..
 

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clinfo(1M)						  System Administration Commands						clinfo(1M)

NAME
clinfo - display cluster information SYNOPSIS
clinfo [-nh] DESCRIPTION
The clinfo command displays cluster configuration information about the node from which the command is executed. Without arguments, clinfo returns an exit status of 0 if the node is configured and booted as part of a cluster. Otherwise, clinfo returns an exit status of 1. OPTIONS
The following options are supported: -h Displays the highest node number allowed to be configured. This is different from the maximum number of nodes supported in a given cluster. The current highest configured node number can change immediately after the command returns since new nodes can be dynami- cally added to a running cluster. For example, clinfo -h might return 64, meaning that the highest number you can use to identify a node is 64. See the Sun Cluster 3.0 System Administration Guide for a description of utilities you can use to determine the number of nodes in a cluster. -n Prints the number of the node from which clinfo is executed. EXIT STATUS
The following exit values are returned: 0 Successful completion. 1 An error occurred. This is usually because the node is not configured or booted as part of a cluster. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
attributes(5) SunOS 5.11 12 Mar 2002 clinfo(1M)
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