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Re: Data replication?: msg#00310

Subject: Re: Data replication?
On Wed, 2006-01-25 at 14:18 -0800, Brad Dameron wrote:
> On Wed, 2006-01-25 at 13:58 -0600, Christopher D. Clausen wrote:
> > Kyle Hutson wrote:
> > > Anybody have any slick solutions for replicating an iet volume? I've
> > > seen it mentioned on some commercial iSCSI feature lists (Left Hand
> > > and EqualLogic), where they apparently periodically create an online
> > > block-level backup to another device.
> > >
> > > I realize this isn't built into IET itself, but has anybody found any
> > > good solutions (and no, 'dd' doesn't qualify as a "good solution")
> > > for this?
> > 
> > Create TWO iSCSI LUNs and use whatever OS built-in mirroring software.
> > 
> > You would of course likely want to then have two seperate iSCSI targets, 
> > possibly both running IET, perhaps not.
> > 
> > <<CDC

sounds interesting. any more detail? thanks!

> 
> I have done this with 4 IET target server's in a RAID10. And it is very
> fast. Make sure to use mdadm for software raiding. I did have a mounting
> issue on boot up. I had to setup a small delay and a separate mount from
> the fstab. Maybe someone else has a fix for this. I also ran RedHat GFS
> over it so I could share the storage between the 4 servers. So I made
> myself a mini cluster. Was pretty fast. So the target's were also
> client's mounting all the other target's and itself then creating the
> raid and sharing it with GFS.
> 
> Brad Dameron
> SeaTab Software
> www.seatab.com
> 
> 
> 
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