Re: two SAN boxes?

From: Geoff N. Hiten (SRDBA_at_Careerbuilder.com)
Date: 10/06/04 

Date: Wed, 6 Oct 2004 09:58:47 -0400

Real easy way to think about this. A LUN is a virtual disk on the SAN
side, but maps as a physical disk on the OS side. Almost like a RAID
container, but with an extra layer of abstraction in the SAN between the
logical disk construction and the underlying physical RAID disks. 

-- 
Geoff N. Hiten
Microsoft SQL Server MVP
Senior Database Administrator
Careerbuilder.com
I support the Professional Association for SQL Server
www.sqlpass.org
"Chip" <anonymous@discussions.microsoft.com> wrote in message
news:099901c4aba0$d24a53a0$a401280a@phx.gbl...
> Thanks Rod!,
>
> would be greatful if u can point me to some resources by
> which i can understand LUN(Logical Unit Number) in context
> with clustering.
>
> Regards
>
> Chip
> >-----Original Message-----
> >Nope. You will need different LUNs on the SAN, but not
> different SANs.
> >
> >Cheers,
> >
> >Rod
> >
> >MVP - Windows Server - Clustering
> >http://www.nw-america.com - Clustering
> >http://www.msmvps.com/clustering - Blog
> >
> >"Chip" <anonymous@discussions.microsoft.com> wrote in
> message
> >news:3fae01c4ab8a$144e7860$a301280a@phx.gbl...
> >> Hi,
> >>
> >> on a two node cluster, Do I need two seperate SAN boxes
> If
> >> i have to run SQL Servers on a Active/Active
> clustering?.
> >>
> >> Regards
> >>
> >> Chip
> >
> >
> >.
> >

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