IBM SG24-5131-00 manual Changing Cluster Resources, TaskGuide Requirements

To use the SMIT shortcuts to C-SPOC, type smit cl_lvm or smit cl_conlvm for concurrent volume groups. Concurrent volume groups must be varied on in concurrent mode to perform tasks.

8.4.4 TaskGuide

The TaskGuide is a graphical interface that simplifies the task of creating a shared volume group within an HACMP cluster configuration. The TaskGuide presents a series of panels that guide the user through the steps of specifying initial and sharing nodes, disks, concurrent or non-concurrent access, volume group name and physical partition size, and cluster settings. The TaskGuide can reduce errors, as it does not allow a user to proceed with steps that conflict with the cluster’s configuration. Online help panels give additional information to aid in each step.

8.4.4.1 TaskGuide Requirements

TaskGuide is only available since HACMP for AIX version 4.3. Before you start the TaskGuide, make sure that:

•You have a configured HACMP cluster in place

•You are on a graphics capable terminal

8.4.4.2 Starting the TaskGuide

You can start the TaskGuide from the command line by typing: /usr/sbin/cluster/tguides/bin/cl_ccvg, or you can use the SMIT interface as follows:

1.Type smit hacmp

2.From the SMIT main menu, choose Cluster System Management ->

Cluster Logical Volume Manager ->Taskguide for Creating a Shared Volume Group. After a pause, the TaskGuide Welcome panel appears.

3.Proceed through the panels to create or share a volume group.

8.5Changing Cluster Resources

In HACMP for AIX, you define each resource as part of a resource group. This allows you to combine related resources into a single logical entity for easier configuration and management. You then configure each resource group to have a particular kind of relationship with a set of nodes. Depending on this relationship, resources can be defined as one of three types: cascading, rotating, or concurrent access. You also assign a priority to each participating node in a cascading resource group chain.

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