Re: [Burp-users] split_vss=1 drawbacks

[Graham K. <gr...@gr...>]

If the application has a 'VSS Writer', then the backup should have
consistent application data.
The VSS Writers are listed on the client side at the start of a Windows
backup.
I am not sure what the difference is between an 'app specific backup' and
one that reads data from the application's VSS writer. Are they not the
same thing?

On Tue, March 3, 2015 8:27 pm, Ghozlane Toumi wrote:
>>From my experience, sql and surely exchange plug in the shadow copy
> infrastructure to quiece disk activity during the snapshot, you should
> have
> a "crash"  backup that is no worse than a real crash.
> Sql and exchange should replay their log at the next restart.
> Generally it's recommended however to use the app specific backup as
> mentionned...
>  On Mar 3, 2015 11:15 AM, "Jason Haar" <Jas...@tr...> wrote:
>
>> 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
>>
>>
>>
>> ------------------------------------------------------------------------------
>> Dive into the World of Parallel Programming The Go Parallel Website,
>> sponsored
>> by Intel and developed in partnership with Slashdot Media, is your hub
>> for
>> all
>> things parallel software development, from weekly thought leadership
>> blogs
>> to
>> news, videos, case studies, tutorials and more. Take a look and join the
>> conversation now. http://goparallel.sourceforge.net/
>> _______________________________________________
>> Burp-users mailing list
>> Bur...@li...
>> https://lists.sourceforge.net/lists/listinfo/burp-users
>>
> ------------------------------------------------------------------------------
> Dive into the World of Parallel Programming The Go Parallel Website,
> sponsored
> by Intel and developed in partnership with Slashdot Media, is your hub for
> all
> things parallel software development, from weekly thought leadership blogs
> to
> news, videos, case studies, tutorials and more. Take a look and join the
> conversation now.
> http://goparallel.sourceforge.net/_______________________________________________
> Burp-users mailing list
> Bur...@li...
> https://lists.sourceforge.net/lists/listinfo/burp-users
>