Most commands should work on all PowerHA (HACMP prior to ) .. Compressing files under Linux or UNIX cheat sheet · Cloning rootvg. There is no specific command to get the PowerHA version. However, the version of the fileset actually reflects the PowerHA. PowerHA (formerly HACMP) and gain a cheat sheet on how to configure and set up a simple two-node cluster. Share: Christian Pruett is a senior UNIX systems.
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How to list the shared vgs in resource group dbRG. How to list the runtime parameters for the node node1. How to do graceful shutdown immediately with takeover. Again a reference node has to be specified. How to show info about ether network module. Congratulations for the initiative. How to list the logs. How to show heartbeat information.
The PowerHA for AIX (formerly HACMP) cheat sheet
They happen to work. Comments Sign in or register to add and subscribe to comments. You can purchase this software from IBM directly see Related topics for a link ; the file sets all start with the word cluster. Manoel Bezerra 5 April at This setting prevents the resources from going back to the original server when it is brought up, sueet is a wise thing to do.
From a systems administration point of view, the main concept behind PowerHA is to keep everything as redundant as possible to ensure that there is high availability at all levels. How to locate the resource groups and display their status.
Next, run cjeat command:. However, hardware failures aren’t the only reason for making resources move from one server to another. Sign in or register to add and subscribe to comments.
How to show short resource group information. When a problem occurs with the availability of some of the physical resources, such as some wires being accidentally unplugged, PowerHA senses the errors and makes shret other server take over. How to force shutdown cluster immediately without releasing resources.
A number of steps must take place before you can configure an PowerHA cneat and make it available. How to show resource information by resource group.
No development servers I have seen many environments in a number of different companies over the years in which the decision is made to declare one of the nodes in a cluster a “production” server and the other a “development” server. Valid values are between 1 and When this strategy is used, invariably differences in the two servers arise, as development causes differences in software, applications, shest operating haccmp functions.
The more you test, the more reliable your cluster will be.
unixwerk: cluster commandline
How to show info about all network modules. Once the servers are built, consider them joined at the hip: How to remove all resources from resource group appRG. Repeat step 7except this time, select the Discovered option and the target disk. How to add node5 to the cluster.
There is a momentary pause in the availability of the resources, but then everything comes up as though it were on the original machine, and no one can tell the difference, as shown in Figure 3. If there is some syntax error, please consult the manual page for that command. Check the subnet masks for consistency. In this example, you set up a simple two-node cluster hcamp two Ethernet networks: Then, perform these steps:.
How to list the shared file systems. This decision is typically hacp because companies decide that having a server sit idle more than 90 percent of the time in case of a disaster is a waste of money. Virtual local area network WAN: How to list the shared lvs.
X utility for cluster status. How to do graceful shutdown immediately with no takeover. And when the time comes that the production resource group has to be failed over to the development server because it’s always a matter of when, not ifthose hseet will prevent things from running correctly. How to cueat the VG of LV nodelv. How to locate the resource groups and display status -s. How to change the cluster node name node5 to node3.
This brought us a new command: X utility for cluster status.