Planning for independent disk pools
Several requirements must be satisfied to use independent disk pools, particularly if you plan to use switchable independent disk pools. Setting up an environment for switching devices begins with careful planning.
When you are ready to order a new system or a system upgrade to use clusters, IBM® will assist you in making sure that your cluster requirements are met. See Planning for Clustering.
Creating a stand-alone, or dedicated, independent disk pool does not require as much planning as a switchable independent disk pool. However, you should still take the time to make sure that your future needs will not require you to be able to switch the independent disk pool.
When independent disk pools are used, you should configure a storage pool for the independent disk pools separate from the base storage pool (pool number 2) and separate from storage pools configured for jobs that are not using independent disk pools.
- Switchable and stand-alone independent disk pools
There are two basic environments in which you can take advantage of independent disk pools, a multisystem environment managed by a cluster and a single-system environment with a single system.- Hardware requirements for independent disk pools
Depending on how you plan to use independent disk pools, have specific hardware and operating system releases.- Physical planning requirements
Depending on how you plan to use independent disk pools, satisfy specific physical planning requirements.- Software and licensing requirements
Depending on how you plan to use independent disk pools, have specific software and licenses.- Communications requirements
There are specific communication requirements for Multisystem clustered environment.- Cluster requirements
If you plan to use switchable independent disk pools or geographically mirrored independent disk pools, you need to configure a cluster.- Application considerations for independent disk pools
When you are designing or restructuring your application environment for use with independent disk pools, there are several things you should know.- Switching independent disk pool between different releases
There are restrictions to consider when switching independent disk pools between releases.- Storing and printing spooled files
This topic provides instructions for storing and printing spooled files on a disk pool group.- Object identification
Follow this information to learn about the complexity of using multiple databases on a single system and what different parameters mean to CL commands.- Multiple system libraries
All system libraries continue to exist in the system disk pool with additional system libraries.- Supported and unsupported object types
Supported and unsupported object types in independent disk pools.
Parent topic:
Planning for disk poolsRelated concepts
Requirements for geographic mirroring Independent disk pool examplesRelated tasks
Creating a switchable independent disk poolRelated information
Planning for Clustering