IBM SG24-5131-00 사용자 설명서

IBM Certification Study Guide  AIX HACMP

withdraw the 7135 RAIDiant Systems from marketing because it is equally 
possible to configure RAID on the SSA Subsystems.

HACMP provides a highly available environment by identifying a set of 
cluster-wide resources essential to uninterrupted processing, and then 
defining relationships among nodes that ensure these resources are 
available to client processes.

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.

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: