12-16 Dell PowerVault 720N, 740N, and 760N System Administrator and Command Reference Guide
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You must meet all the prerequisites described in Prerequisites for the Dump
Command.
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You can run up to four dump commands in parallel.
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Follow these steps to execute a dump command:
1. Prepare the number of tapes required, following the steps described in Deter-
mining the Number of Tapes for the Backup.
2. Determine and note the blocking factor used in the backup. For more information
about blocking factors, refer to Meaning of Tape Block.
3. Determine and note the tape file size used in the backup. For more information
about tape file size, refer to Meaning of Tape File.
4. Enter the dump command in the appropriate format, using the examples that fol-
low as a guide.
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The following list provides examples of level-0 backups to a local tape file.
dump 0f rst0a /vol/vol1/users/tom/specs
The command performs a full backup of the /vol/vol1/users/tom/specs directory.
After the dump command is finished, the filer rewinds the tape.
dump 0uf rst0a /vol/vol1/users/tom
The command performs a full backup of the /vol/vol1/users/tom directory and
records the backup in the /etc/dumpdates file.
dump 0fQ rst0a /vol/vol1
The command performs a full backup of all data in the /vol/vol1 volume that does
not belong in any qtrees.
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dump 0f filer1:nrst0a /vol/vol1
The command performs a backup to a tape drive attached to a filer named filer1.
dump 0f unix_machine:/dev/rst0 /vol/vol1
The command performs a backup to a tape drive on a UNIX system.