A device class represents a device type that can be used by TSM. TSM uses the device class to determine which device and storage volume type to use to:
One device class can be associated with multiple storage pools. Each storage pool is associated with only one device class.
Each device class is characterized by its device type, which indicates the type of storage volumes that are used to store data. For random access storage, TSM supports only the DISK device class. The DISK device class is predefined by TSM. However, you can define many storage pools associated with the DISK device class.
For sequential access storage, TSM supports the following device types:
See the following sections:
In this chapter, most examples illustrate how to perform tasks by using the TSM command line interface. For information about the TSM commands, see Administrator's Reference, or issue the HELP command from the command line of a TSM administrative client.
All of the TSM commands can be performed from the administrative Web interface. For more information about using the administrative interface, see Quick Start.