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:
3570 | IBM 3570 cartridge tape devices |
3590 | IBM 3590 tape drives |
4MM | 4mm tape drives, such as IBM 7206-005 |
8MM | 8mm tape drives, such as IBM 7208-001 and 7208-011 |
DLT | Digital linear tape (DLT) drives |
DTF | Digital tape format |
FILE | Storage volumes that are files in the file system of the server machine |
GENERICTAPE | Tape drives supported by a Windows NT tape device driver. |
OPTICAL | Optical drives that use 5.25-inch rewritable optical cartridges |
QIC | Quarter-inch cartridge tape drives, such as the IBM 7207 |
REMOVABLEFILE | Removable media devices that are attached as local, removable file systems (for example, Iomega Zip or Jaz drives, or CDROM media) |
SERVER | Storage volumes that are actually files archived in the server storage of another TSM server (a target server) |
WORM | Optical drives that use 5.25-inch write-once read-many optical cartridges |
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.