sysback - estimate backup size only?


 
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Operating Systems AIX sysback - estimate backup size only?
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Old 04-13-2010
sysback - estimate backup size only?

Is there a flag to send to sysback on the command line so it will return the estimated backup size and exit?
We're having issues with running to a second tape at a remote data center, and I want to alter the script to exit or add exclusions if the backup is over a certain size.

The other option is of course to kill the backup at a certain time, but I'd rather avoid that.

---------- Post updated at 09:05 AM ---------- Previous update was at 08:51 AM ----------

Oh, I tried mksbcd -e -E -T vg1 vg2 to estimate size, but it's inaccurate by an enormous degree.
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AMVERIFY(8)						      System Manager's Manual						       AMVERIFY(8)

NAME
amverify - check an Amanda tape for errors SYNOPSIS
amverify config [ slot [ runtapes ] ] DESCRIPTION
Amverify reads an Amanda format tape and makes sure each backup image can be processed by amrestore and, if possible, the appropriate restore program (e.g. tar). Amverify runs amrestore on each file of the tape and pipes the output to a restore program (if available) with an option to create a cata- logue of the backup. The catalogue itself is discarded. Only the success or failure of the operation itself is reported. If the backup image cannot be processed by the restore program, e.g. if it was written on a different operating system, the image is sent through dd to /dev/null. This still determines if the tape is readable, but does not do any internal consistency check on the image. If config is set up to use a tape changer, the slot argument may be used to choose the first tape to process. Otherwise, the current slot is used. The runtapes configuration parameter determines how many tapes are processed unless it is specified on the command line. See the amanda(8) man page for more details about Amanda. AUTHOR
Axel Zinser <fifi@icem.de> SEE ALSO
amrestore(8), amanda(8), amverifyrun(8) AMVERIFY(8)