Networker

[Networker] question about missing files saveset mechanics

2003-07-03 07:33:27
Subject: [Networker] question about missing files saveset mechanics
From: Ted Zlatanov <tzz AT LIFELOGS DOT COM>
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Date: Thu, 3 Jul 2003 07:23:23 -0400
Hello,

our setup is: 6.0.3 on Solaris to a DLT tape jukebox.  We used to have
6.0.1 when the backups in question were made.

There was an error in the program that mounted backup filesystems for
a period of time, so that /backups/data1 for instance was empty after
April.  data1 had good backups up to April, though.  My question is:
given that the filesystem was empty, did Networker think that all the
files in it were deleted?  If I restore the data1 backups as combined
savesets instead of individually, will Networker decide to skip files
backed up in earlier savesets because they are not in the post-April
savesets?

In order to circumvent the possible problem described above, I've been
either restoring individual savesets, or stepping through April
day-by-day with "changetime" in the recover program.

Is there a description of the saveset backup algorithm, and of the
saveset consolidation algorithm anywhere?  That would be most helpful.

Thank you
Ted Zlatanov

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