Subject RE: [Firebird-Architect] Re: Incremental Backups
Author Samofatov, Nickolay
Hi, Jim, All!

> >Jim,
> >
> >
> >
> >>And, no, NBak doesn't address incremental backup. As far as I know
> >>(which may be wrong), it doesn't address this problem at all.
> >>
> >>
> >
> >It addresses it completely!
> >
> >It supports the standard/simple/single incremental model
> (ala standard
> >tape backup solutions).
> >
> >It also supports a multi-level model (ie. hourly, daily, weekly...).
> >You can set backup points and then request a backup which
> reflects that
> >changes from those points.
> >
> >
> >
> Sounds great. Can you give us a pointer to the documentation?

In devel list Helen pointed to a nice page giving explanation of
NBAK/NBACKUP inner workings.
If you need to know details of implementation feel free to read the
explanation (carefully), source and ask questions.

Unfortulately, user-level documentation does not exist yet, but it will
be there before 2.0 is released.
Anyways, nbackup usage page should provide enough info for experienced
Physical Backup Manager Copyright (C) 2003 Firebird development team
Original idea is of Sean Leyne <sean@...>
Designed and implemented by Nickolay Samofatov <skidder@...>
This work was funded through a grant from BroadView Software, Inc.

Usage: nbackup <options>
valid options are:
-L <database> Lock database for filesystem
-U <database> Unlock previously locked
-F <database> Fixup database after filesystem
-B <level> <database> [<filename>] Create incremental backup
-R <database> [<file0> [<file1>...]] Restore incremental backup
<database> may specify database alias
incremental backups of multi-file databases are not supported yet
"stdout" may be used as a value of <filename> for -B option

> Jim Starkey