Aliasing simplifies the process of device identification. Aliasing binds a physical path name (PPN) or a serial number (SN) of a tape or a medium changer to a persistent, but modifiable alias name.
|Scenario||Reassigning of the alias|
|When the system reboots||The tape drive is automatically reassigned its previous alias.|
|When a tape device moves to another port||The alias can be adjusted to point to the new address.|
|When more than one system uses a particular tape device||The user can set the alias to be the same for all the systems.|
You can use tape aliases as parameters to the dump, restore, smtape backup, and smtape restore commands.
There are two types of names available for aliasing: physical path name and serial number.