withdraw the 7135 RAIDiant Systems from marketing because it is equally possible to configure RAID on the SSA Subsystems.
2.4 Resource Planning
HACMP provides a highly available environment by identifying a set of
When a cluster node fails or detaches from the cluster for a scheduled outage, the Cluster Manager redistributes its resources among any number of the surviving nodes.
HACMP considers the following as resource types:
•Volume Groups
•Disks
•File Systems
•File Systems to be NFS mounted
•File Systems to be NFS exported
•Service IP addresses
•Applications
The following paragraphs will tell you what to consider when configuring resources to accomplish the following:
•IP Address Takeover
•Shared LVM Components
•NFS Exports
and the options you have when combining these resources to a resource group.
2.4.1 Resource Group Options
Each resource in a cluster is defined as part of a resource group. This allows you to combine related resources that need to be together to provide a particular service. A resource group also includes the list of nodes that can acquire those resources and serve them to clients.
A resource group is defined as one of three types:
