Cluster, nodes, and networks

Review the custom topology configuration options that you might want to use for specific cases.

Options for configuring cluster topology components includes:

Configuring a PowerHA SystemMirror cluster
You can use the Custom Cluster Configuration path and the menus under Initial Cluster Setup (Custom) to configure the cluster a piece at a time. You can start by giving the cluster a name.
Configuring cluster heartbeat settings
The heartbeat function is configured to use specific paths between nodes. These paths allow heartbeats to monitor the health of all PowerHA® SystemMirror® networks, network interfaces, and nodes in the cluster.
AIX Live Update for PowerHA SystemMirror nodes
You can use the AIX® Live Update function to apply an interim fix for the AIX® operating system without restarting the system. The workloads on a system are not stopped during the update process of the system that uses the Live Update function.
Resetting cluster tunables
You can change the settings for a list of tunable values that were changed during the cluster maintenance and reset them to their default settings, or installation-time cluster settings.
Adding a node to a PowerHA SystemMirror cluster
You can use the SMIT interface to add a node when you are initially setting up the cluster or you can add a node to an existing cluster.
Adding a PowerVM NovaLink definition
You can use the SMIT interface to add a PowerVM® NovaLink definition that is used by the PowerHA® SystemMirror® cluster.
Configuring PowerHA SystemMirror networks
You can configure multiple networks in PowerHA® SystemMirror® to control application traffic over the cluster network interfaces. Use the Manage Networks and Network Interfaces > Networks path in SMIT to add, change, show, or remove networks from the cluster.
Configuring network interfaces to PowerHA SystemMirror
You can define which network interfaces are used to host clustered application IP traffic.
Configuring PowerHA SystemMirror persistent node IP labels/addresses
A persistent node IP label is an IP alias that can be assigned to a network for a specified node.
Managing a backup repository disk with SMIT
You can use the System Management Interface Tool (SMIT) to add backup repository disk, remove a backup repository disk that is not active, and view all configured repository disks.
Configuring the CRIT_DAEMON_RESTART_GRACE_PERIOD tunable
The Reliable Scalable Cluster Technology (RSCT) suite consists of multiple subsystems that provide various clustering tools and solutions for several products on AIX. The traditional RSCT Peer Domain (RPD), when configured without Cluster-Aware AIX (CAA), consists of several critical subsystems that monitor each other, and failures or excessive blockages detected between them triggers a node failure (often a panic or reboot), if necessary to protect the integrity of resources shared between multiple nodes in a cluster.
Replacing a repository disk with SMIT
Cluster Aware AIX® (CAA) detects when a repository disk failure occurs and generates a notification message. You will continue to receive notification messages until you replace the failed repository disk with a new repository disk.

Parent topic: Additional cluster configuration