Veritas NetBackup™ Administrator's Guide, Volume II
- NetBackup licensing models and the nbdeployutil utility
- Creating and viewing the licensing report
- Reviewing a capacity licensing report
- Reconciling the capacity licensing report results
- Reviewing a traditional licensing report
- Additional configuration
- About dynamic host name and IP addressing
- About busy file processing on UNIX clients
- About the Shared Storage Option
- About configuring the Shared Storage Option in NetBackup
- Viewing SSO summary reports
- About the vm.conf configuration file
- Holds Management
- Menu user interfaces on UNIX
- About the tpconfig device configuration utility
- About the NetBackup Disk Configuration Utility
- Reference topics
- Host name rules
- About reading backup images with nbtar or tar32.exe
- Factors that affect backup time
- NetBackup notify scripts
- Media and device management best practices
- About TapeAlert
- About tape drive cleaning
- How NetBackup reserves drives
- About SCSI persistent reserve
- About the SPC-2 SCSI reserve process
- About checking for data loss
- About checking for tape and driver configuration errors
- How NetBackup selects media
- About selecting media in robots
- About selecting media in standalone drives
- About Tape I/O commands on UNIX
About spanning media
Media selection after an end of media (EOM) condition depends on whether NetBackup is configured to allow backups to span media, as follows:
After an EOM condition, NetBackup attempts to use an unassigned volume rather than one that already has images on it. NetBackup checks the EMM database for a volume that is the correct media type, in the correct volume pool, and so on.
If a suitable unassigned volume is unavailable, NetBackup selects a volume.
NetBackup does not span media if thehost property is not specified. The backup terminates abnormally when the end of media is reached. The operation is rescheduled according to the master server host property .
You can further configure NetBackup behavior for standalone drives. Normally, when NetBackup spans media and an EOM is encountered on a standalone drive, NetBackup searches for other media or generates a pending mount request. You can configure a wait period for standalone drives. The wait period is helpful when a gravity feed tape stacker takes a long time to load the next media in the drive.
To configure NetBackup to wait, specify themedia server host property. This property specifies the number of seconds NetBackup waits to use a volume that is loaded in a compatible drive. After the wait period expires, NetBackup searches for another drive. NetBackup also waits to generate a pending mount request during tape span operations. The property applies only when standalone drive extensions are enabled.