Cheaper backup mechnism for a server

[Subhro Kar]

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Hello,

dhaneshk k sat at his 'pewter and typed  on 09/21/07 13:55:
> Hi ;
> 
> A general question pls excuse me
> 
> can any body suggest a backup mechanism for a server machine , which has
> a web portal , email server ,PgSQL database 4GB size , DNS server,
> Mailman , and a mediawiki applications running in a single machine .
> 
> Can you suggest good solutions , for the server Backup mechanism    so
> that I can restore all the data just before the crashing moment .
> 
> pls share your expertise , it will help me lot  to secure my data in the
> server machine ..

If you wish to have 0 downtime then the only option is a separate
failover server. However much you try, if you do not have a separate box
 to failover to, it is not possible to do a 0 downtime switchover.

Regarding the backup solution, you can either buy an external Hard Disk
and back up to it. Alternatively you can back up to tape drives or to
NFS mounted volumes.

Thanks
Subhro
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