Cheaper backup mechnism for a server

[Subhro Kar]

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Hello DharneshK,

You can try to create a Mirror using RAID. You can either create a
software or a hardware (recommended) managed Mirror. In case of a disk
crash you still have a copy of the updated data on the disk.

BTW, please make sure you hit "Reply all" instead of "Reply". this also
keeps the freebsd-questions@ updated which will allow others to look
into this mail and provide a better answer as well as help future users.

Thanks
Subhro


dhaneshk k sat at his 'pewter and typed  on 09/21/07 14:39:
> Hi , subhro,
> 
> i agree with you ,  I need a clarification
> 
> The backup should be the uptodate one , so in case of a disk crash
> (permanent crash) I need the backup upto the last moment , so is ther
> any cheap tools , to do it , so i can save the backups to another
> desktop pc  synchronously (I mean any mechanism for backup through
> online ie ; ssh  OR VPN or like that )  (not manual backing up at each
> moment) can you tell the exact solution .
> 
> If  I am using rsync , I can only do it by a crontab , even though at a
> specfic time only the cron run , if crash occurs after this time then
> the data after the cron will lose  , so which is the right & cheaper
> solution ?
> 
> 
>> From: Subhro Kar <subhro.kar at gmail.com>
>> To: dhaneshk k <dhaneshkk at hotmail.com>
>> CC: freebsd-questions at freebsd.org
>> Subject: Re: Cheaper backup mechnism for a server
>> Date: Fri, 21 Sep 2007 14:26:55 +0530
>>
> 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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