Re: [Burp-users] split_vss=1 drawbacks

[Jason H. <Jas...@tr...>]

On 03/03/15 11:47, Graham Keeling wrote:
>> Is it possible to recover hole server ?
> It is possible to restore the whole server.
> But it is your responsibility to test this.

Database applications (like Exchange) don't write to disk on every
change - and when they do it's via transaction logs first, then the
formal write later. As such all best practice surrounding backups is to
use application-specific backup tools: The only way to do a successful
file system backup in these environments is to turn off the application
first: ie force quiescence and then back that up. Snapshotting the file
system first (while these apps are still running) doesn't help, as some
of the data isn't written out yet

So I wouldn't recommend burp or any other "file system" backup tool to
backup Exchange or Microsoft SQL server. You might get lucky and have it
work (corrupt database plus transactions logs sometimes equals
successful restore), but you're doing it wrong if you do it that way

Disclaimer: this is based on my very old exposure to Exchange in the
past - but I can't see it being different today, especially with
Microsoft's ongoing love affair with locking file operations

-- 
Cheers

Jason Haar
Corporate Information Security Manager, Trimble Navigation Ltd.
Phone: +1 408 481 8171
PGP Fingerprint: 7A2E 0407 C9A6 CAF6 2B9F 8422 C063 5EBB FE1D 66D1