Veritas NetBackup™ Device Configuration Guide
- Introducing device configuration
- Section I. Operating systems
- AIX
- About configuring tape drive device files in AIX
- Creating AIX no rewind device files for tape drives
- HP-UX
- About device drivers and files for HP-UX persistent DSFs
- About configuring persistent DSFs
- About HP-UX legacy device drivers and files
- About configuring legacy device files
- Linux
- About the required Linux SCSI drivers
- About configuring robot and drive control for Linux
- Solaris
- Installing/reinstalling the sg and the st drivers
- About Solaris robotic controls
- About Solaris tape drive device files
- Configuring Solaris SAN clients to recognize FT media servers
- Windows
- AIX
- Section II. Robotic storage devices
- Robot overview
- Oracle StorageTek ACSLS robots
- About removing tapes from ACS robots
- Robot inventory operations on ACS robots
- NetBackup robotic control, communication, and logging
- ACS robotic test utility
- ACS configurations supported
- Device configuration examples
HP-UX tape drive device file requirements for NetBackup
The following table describes the requirements for tape drive device files.
Table: Tape drive device file requirements
Requirement | Description |
---|---|
Berkeley-style close | NetBackup requires Berkeley-style close for tape drive device files. The letter b in the file name indicates Berkeley-style close device files. In Berkeley-style close, the tape position remains unchanged by a device close operation. (Conversely, in AT&T-style close, the drive advances the tape to immediately after the next end-of-file (EOF) marker.) To establish the correct position for the next tape operation, applications must assume the tape's position after a close. NetBackup assumes Berkeley-style close on HP-UX systems. |
Fast-tape positioning (locate-block) | HP-UX supports locate-block for most drive types for Fast Wide GSC SCSI adapters. For a list of drive types that NetBackup supports, see the Veritas Hardware Compatibility List: http://www.netbackup.com/compatibility NetBackup uses the locate-block command by default if a pass-through path is configured. To disable locate-block positioning, execute the following command: touch /usr/openv/volmgr/database/NO_LOCATEBLOCK When locate-block positioning is disabled, NetBackup uses the forward-space-file/record method. |
No rewind on close | NetBackup requires no rewind on close for tape devices. The letter n in the file name indicates no rewind device files. |