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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 cluster topology information. If you really want to make sure your cluster is solid, perform testing by literally removing cables and seeing how the resources move back and forth.

Again a reference node has to be specified.

The most widely known tool to check the cluster state is probably clstat: Chear two simple Korn shell scripts—one that starts an application and one that stops an application. How to list the name and security level of the cluster. My preference is not to have the cluster start on reboot, because if there is a PowerHA-related problem on startup, it can be difficult to troubleshoot it.

How to change the cluster security to enhanced.

How to list the name and security level of the cluster. How to sync the cluster topology. The more you test, the more reliable your cluster will be. xheat


With all of the virtualization technology available today, it’s far more worthwhile to use VIO to create a pair of production and development LPARs on the same set of System p servers and hardware resources than to try to save a few dollars at the expense of sacrificing the true purpose for which PowerHA was designed.

SNMP-based tool to show cluster state. A cluster ping program with more arguments. How to list the resources defined for all resource group.

The PowerHA for AIX (formerly HACMP) cheat sheet

You only need to set Superstrictness and upperbound if not already set. They happen to work. Cluster rsh program that take cluster node names as argument. Similar to cldump, perl script to show cluster state.

The second step, which should coincide with the first, is to size the environment in such a way that each node can manage all the resource groups simultaneously. Restore your mistakenly deleted files in How to list the network for ip How to remove the node node How to create resource group sapRG with nodes n1,n2 in cascade. How to list the VG of LV nodelv. If there is some syntax error, please consult the manual page for that command. How to list the local view of the cluster subsystems.

How to locate the resource groups and display their status. The map file must only contain the additional mappings. When this strategy is used, invariably differences in the two servers arise, as development causes differences in software, applications, and operating system functions. How to locate the resource hacnp and display their status.


Once the servers are built, consider them cueat at the hip: Keep these scripts in identical directories on both nodes. How to remove the application server app How to list the runtime parameters for the node node1. How to list the shared vgs in resource group dbRG.

One or more PVs can be added to an existing volume group.

You can purchase this software from IBM directly see Related topics for a link ; the file sets all start with the word cluster. The number of processors, the quantity of memory, and the types of Fibre Channel and Ethernet adapters should all be the same.

UNIX Health Check – Useful HACMP commands

Since it is not guaranteed that the hdisks are numbered the same way across all nodes you need to specify a reference node with the “-R” switch: How to list the info about the cluster nodes. There’s a very nice page about AIX cluster. How to show info about ether network module.