BackupPC-users

Re: [BackupPC-users] Anecdote about backup of changing zip files

2009-09-07 17:41:03
Subject: Re: [BackupPC-users] Anecdote about backup of changing zip files
From: "Michael Stowe" <mstowe AT chicago.us.mensa DOT org>
To: "Jeffrey J. Kosowsky" <backuppc AT kosowsky DOT org>
Date: Mon, 7 Sep 2009 16:37:36 -0500
> But anyway, using VSS does not assure a stable database state. You
> would at least need to 'sync' (or stop) the database to ensure such a
> state. Now in practice, the database may be robust and you may just
> lose the last entry but taking a VSS is not a recommended method.

Microsoft recommends VSS, but then again, they also disagree with your
presumption that a manual 'sync' or stop is necessary.  Not that it would
hurt anything, but even without it, you get a point-in-time snapshot from
the time that the shadow volume was created.

If you care to get your technical information from Microsoft rather than
conjecture, there's considerable detail available here:

http://technet.microsoft.com/en-us/library/cc966520.aspx

Note that capabilities vary by VSS writer, as well as Windows and SQL
Server version, but pretty much all are capable of backing up a database
that's capable of being recovered.

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