Re: [Xen-users] Re: Data Backup and Restore Scripts for your Xen Servers

["Mr. Teo En Ming (Zhang Enming)" <space.time.universe@xxxxxxxxx>]

On Mon, Nov 16, 2009 at 9:04 AM, Javier Guerra <javier@xxxxxxxxxxx> wrote:
> Steven Anderson wrote:
>> I was trying to understand why one wouldnt use LV snapshots
>
> because it gives you a backup of a 'dirty' filesystem.  that is, a snapshot 
> when it's mounted, and without any guarantees about all processes having 
> flushed important data to disk.
>
> recovering from such a backup is to the system just like recovering from a 
> 'pull the plug' event.  In most cases an fsck is enough and the (little) lost 
> data is within reason for a catastrophic failure.  In other cases (usually 
> when a busy database is involved), it's just not OK,  you could recover data 
> that is totally inconsistent, maybe needing a complex analysis to bring it 
> back to a reasonable state.
>
> IOW, it's better to use a 'normal' backup system, and be sure to get 
> cooperation from any DB system.
>
> --
> Javier
>
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>

Hi All,

I have tested both the backup and restore scripts by doing an actual
backup and restore operation on my computer.

For your convenience, I have attached the final backup and restore
scripts in this email.

-- 
Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics) BEng(Hons)(Mechanical
Engineering)
Alma Maters:
(1) Singapore Polytechnic
(2) National University of Singapore
My Primary Blog: http://teo-en-ming-aka-zhang-enming.blogspot.com
My Secondary Blog: http://enmingteo.wordpress.com
My Youtube videos: http://www.youtube.com/user/enmingteo
Email: space.time.universe@xxxxxxxxx
Mobile Phone (Starhub Prepaid): +65-8369-2618
Street: Bedok Reservoir Road
Country: Singapore

Attachment: xen-dom0-domU-cloning-script.sh.txt
Description: Text document

Attachment: restore.sh.txt
Description: Text document

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