RE: Cheap way to practice clustering? > Reality

[CHAT KHODA]

Hello friends,
Thank you for submitting the request regarding a
practice with clustering models.
I am also intrested in doing some practices with
failover and load balancing especially mail and web
servers.
If you have any idea to implement such a these
solutions without expensive hardware(especially
central storage) Please write for mailing
list.Normally I consider that I and other interested
guys are able to dedicate 2-3 fedora servers with
normal hardware.
I even invite these friends to talk more regarding our
experiences.
Your cooperation is highly appreciated.
Sincerely,

--- James Montz 
wrote:
> If you just want to play and learn with Failover,
> you don't have to have
> a multi-host aware storage solution.
>
> I have a couple of test servers setup, just using
> their local disk for
> storage.  I have setup several services (httpd,
> sendmail, imap, and
> virtual IP) to fail over between the two servers,
> and has suited my
> needs.  And if you really wanted to test an external
> storage source, you
> could use an NFS mount.
>
> The only difference in a production environment will
> be the presence of
> the storage system, and this is basically just
> handled by defining the
> shared file system as a shared resource.
>
> -----Original Message-----
> From: [e-mail]
> [mailto:[e-mail]] On Behalf Of
> Thomas Cameron
> Sent: Wednesday, August 31, 2005 8:34 AM
> To: [e-mail]
> Subject: Cheap way to practice clustering?
>
> Hi all -
>
> I posted about using firewire for clustering
> practice a couple of days
> ago.  It turns out that this apparently requires a
> special, very
> expensive firewire solution.
>
> So I want to play around with clustering (as in high
> availability
> clustering a la Red Hat Cluster Suite, not
> computational clustering) at
> home so that I can become more proficient.  The
> problem is, I don't want
> to buy a multi-thousand dollar SAN for my house.  I
> wanted to find a way
> to do clustering on the cheap.  I am not sure what
> path to take, so I am
> going to toss it to the list to see if anyone has
> any suggestions.  I am
> totally open to older/used equipment.
> > From what I've been told, I need a storage device
>
> which is multi-host
> aware, so plain old firewire or even SCSI JBOD won't
> do.  I've been
> looking at the specs at

http://www.redhat.com/software/rha/cluster/hardware/.
> I'm leaning towards VMWare at this point, but I'd
> rather do it for real
> than in virtual machines.
>
> Any pointers?
>
> Thanks!
> Thomas
>
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