About HP-UX device addressing schemes
NetBackup supports the following two HP-UX device addressing schemes for mass storage devices:
Agile addressing, which was introduced in HP-UX 11i v3. Agile addressing uses persistent device special files (DSFs) for devices.
NetBackup device discovery finds persistent DSFs only. Therefore, Veritas recommends that you use persistent DSFs.
See About device drivers and files for HP-UX persistent DSFs.
The legacy naming model.
Legacy device files are supported in HP-UX 11i v3 and earlier.
If you use the legacy model, you must configure devices manually in NetBackup. You cannot use NetBackup device discovery and automatic configuration.
When HP-UX 11i v3 is installed, both legacy and persistent DSFs are created on the system. Both types of DSFs can coexist and may be used simultaneously to access mass storage devices.
NetBackup requires specific device file capabilities for tape drives.
See HP-UX tape drive device file requirements for NetBackup.
You may be required to perform other HP-UX configuration.
See About SPC-2 SCSI reserve on HP-UX.
See Creating device files for SAN Clients on HP-UX.
See About disabling the HP-UX EMS Tape Device Monitor for a SAN.