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Re: [Linux-cluster] GNBD vs DRBD to mirror two disks via the network



Hi,
 DRBD is what you would want to use here and will beter do the job. It is
possible to create software raid 1 over GNBD and local drive/partition, but
not recomended.

On Mon, 13 Jul 2009 15:40:28 +0100, Bushby, Bruce \(London\)\(c\) wrote 
>   
> Greetings! 
>   
> I'm hoping a member could assist me in clearing up some understanding I
appear to be missing when it comes to GNBD. 
>   
> Today I clustered two vmware machines (active/passive shared nothing) and
then configure GNBD....thats when I noticed it 
> wants to "export" a device from one node and "import" the device on the
other node...which I did and it all works....but that is 
> not what I was after. 
>   
> Can GNBD be configured to keep two disks on different systems in sync using
both synchronous and asynchronous write options? 
>   
> Further research appears to dictate DRDB would be more suited for what I'm
trying to do. (build active/passive clusters on cheap 
> storage..ie no SAN to replicate and no scsi to share) 
>   
> Any help much appreciated!!!! 
>   
>   
> Bruce Bushby 
> Unix Engineering 
>   
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