[PATCH] [WIP] AD DC backup and restore tool
abartlet at samba.org
Wed May 16 10:00:17 UTC 2018
On Wed, 2018-05-16 at 10:53 +0100, Rowland Penny wrote:
> > Running tdbbackup -r won't change a shell script into one that locks
> > the whole DB. This is because a transaction lock (or at least a
> > global read lock) needs to be taken out correctly over the DB while
> > the databases are being copied.
> I think what you are trying to point out here is, even with 'tdbbackup
> -r', you only get a lock on the file being backed up, but the others
> could change whilst the file is backed up.
Yes. The -r thing is just to have tdbbackup use a read lock that is
compatible with the overall transaction lock so both can co-exist and
the backup proceed.
I trust this clarifies things,
Andrew Bartlett http://samba.org/~abartlet/
Authentication Developer, Samba Team http://samba.org
Samba Developer, Catalyst IT http://catalyst.net.nz/services/samba
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