Veritas NetBackup™ SAN Client and Fibre Transport Guide
- Introducing SAN Client and Fibre Transport
- Planning your deployment
- Planning your SAN Client deployment
- SAN Client operational notes
- About SAN Client storage destinations
- How to choose SAN Client and Fibre Transport hosts
- About NetBackup SAN Client support for agents
- About NetBackup SAN Client support for clustering
- About NetBackup SAN Client support for Windows Hyper-V Server
- About NetBackup SAN Client unsupported restores
- About Fibre Transport throughput
- Converting a SAN media server to a SAN client
- Preparing the SAN
- Licensing SAN Client and Fibre Transport
- Configuring SAN Client and Fibre Transport
- Configuring SAN Client and Fibre Transport
- Configuring a Fibre Transport media server
- About the target mode driver
- About nbhba mode and the ql2300_stub driver
- About FC attached devices
- How to identify the HBA ports
- About HBA port detection on Solaris
- About Fibre Transport media servers and VLANs
- Starting nbhba mode
- Marking the Fibre Transport media server HBA ports
- Configuring the media server Fibre Transport services
- Configuring SAN clients
- Configuring SAN clients in a cluster
- About configuring Fibre Transport properties
- Configuring Fibre Transport properties
- Fibre Transport properties
- About SAN client usage preferences
- Configuring SAN client usage preferences
- Managing SAN clients and Fibre Transport
- Disabling SAN Client and Fibre Transport
- Troubleshooting SAN Client and Fibre Transport
- About troubleshooting SAN Client and Fibre Transport
- SAN Client troubleshooting tech note
- Viewing Fibre Transport logs
- About unified logging
- Stopping and starting Fibre Transport services
- Backups failover to LAN even though Fibre Transport devices available
- Kernel warning messages when Veritas modules load
- SAN client service does not start
- SAN client Fibre Transport service validation
- SAN client does not select Fibre Transport
- Media server Fibre Transport device is offline
- No Fibre Transport devices discovered
- Appendix A. AIX Specific Configuration Details
- Appendix B. HP-UX Specific Configuration Details
- HP-UX Reference Information
- Before you begin configuring NetBackup on HP-UX
- About HP-UX device drivers for legacy device files
- About legacy robotic control device files
- About legacy tape drive device files
- About legacy pass-through paths for tape drives
- Creating device files for SAN Clients on HP-UX
- About configuring legacy device files
- Index
About non-QIC tape drives on AIX
Variable length block and fixed length block refer to how the operating system reads from and writes to a tape. Variable-mode devices allow more flexibility to read previously written tapes. Many tape devices can be accessed in either mode. NetBackup assumes variable length for non-quarter inch cartridge (QIC) drives.
For more information, see the chdev(1) and smit(1) man pages and the system management guide. The smit application is the most convenient way to change from fixed to variable-length-block devices manually.
Warning:
For NetBackup, you must configure non-QIC tape drives as variable-length-block devices. Otherwise NetBackup can write data but may not be able to read it correctly. During a read, you may see a not in tar format error.
When you add a non-QIC tape drive to NetBackup, NetBackup issues the chdev command to configure the drive as a variable length block device. For reference, the following is the command that NetBackup uses to configure a drive for variable mode:
/usr/sbin/chdev -l Dev -a block_size=0
Dev represents the logical identifier for the drive (for example: rmt0 or rmt1).
Therefore, you do not have to configure the drive manually for variable mode.