topic Re: fbackup in Operating System - HP-UX

fbackup

Jayachandran.S — Wed, 12 Dec 2007 04:30:33 GMT

using the fbackup command can we append the data on the tape ? How ?

Re: fbackup

whiteknight — Wed, 12 Dec 2007 06:20:37 GMT

jaya,

I don't think fbackup able to append the data.

WK

Re: fbackup

Robert Salter — Wed, 12 Dec 2007 18:32:51 GMT

Look at this document and check Table 6-12A
http://docs.hp.com/en/B2355-90950/ch06s04.html

Not possible to append using fbackup.

Re: fbackup

Bill Hassell — Thu, 13 Dec 2007 00:05:27 GMT

Like all commercial backup products, appending to the end of a tape is never allowed. Not only is it a very unstable mechanism but you lose the usefulness of the index at the front of the tape. I have a list of very sad system administrators that lost several weeks worth of backups because someone wrote a small file on the front of a tape, or the record of which backup date is on a particular tape and in which location.

fbackup always rewinds each tape. It then reads the tape header to make sure it is not overwriting an previous volume. You can probably create a kludge method using dd and pipe multiple backups onto the tape. If you try this, I wish you lots of good luck. You'll need it.