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Cluster Management and Administration 167
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.
8.5 Changing 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.