Check backup file size on backup tape

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Old 10-25-2007
Check backup file size on backup tape


I performed backup on tape and I want to append more files to my previous backup on the same backup tape. But before I do that I need to know the backup file size of the first backup I performed so that I know the available size on the backup tape. Can someone help me what command I will use to check the size? I use tar on performing the backup. Thanks!
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AMRMTAPE(8)						      System Manager's Manual						       AMRMTAPE(8)

amrmtape - remove a tape from the Amanda database SYNOPSIS
amrmtape [ -n ] [ -v ] [ -q ] [ -d ] config label DESCRIPTION
Amrmtape invalidates the contents of an existing backup tape in the configuration database. This is meant as a recovery mechanism when a good backup is damaged either by faulty hardware or user error, e.g. the tape is eaten by the drive or is overwritten. See the amanda(8) man page for more details about Amanda. OPTIONS
-n Generate new tapelist and database files with label removed, but leave them in /tmp and do not update the original copies. -v List backups of hosts and disks that are being discarded. Enabled by default. -q Opposite of -v. -d Run in debugging mode so all executed commands are shown. EXAMPLE
Remove tape labeled DAILY034 from the DailySet1 configuration. # amrmtape DailySet1 DAILY034 AUTHOR
Adrian T. Filipi-Martin <> SEE ALSO
amadmin(8), amanda(8) AMRMTAPE(8)