[THIN] Re: Short question (Streched Cluster Support in W2K3 Enterprise Edition ?)

  • From: "Chris Lynch" <lynch00@xxxxxxx>
  • To: <thin@xxxxxxxxxxxxx>
  • Date: Fri, 23 Apr 2004 13:04:51 -0700

Also, one more thing.  In order to get MNS Clustering to work properly, you
are required to have 3 nodes participate within the cluster.

Chris 

> -----Original Message-----
> From: thin-bounce@xxxxxxxxxxxxx 
> [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of Chris Lynch
> Sent: Friday, April 23, 2004 8:53 AM
> To: thin@xxxxxxxxxxxxx
> Subject: [THIN] Re: Short question (Streched Cluster Support 
> in W2K3 Enterprise Edition ?)
> 
> That would be correct.  Either doing a snapshot replica, or 
> more preferably a cluster/bit copy so not all data is 
> transferred across the wire.  With EMC's management products, 
> they can replicate data all the way down the bit level so not 
> every single file is copied; just the changes to a file.
> 
> I don't have any experience with the Veritas Clustering 
> solutions (with the exception of one client that had a 
> Veritas Cluster for their Exchange 2000 server, and they 
> dumped it because there were too many issues with it).
> 
> What is the reason for a stretched cluster?  Is it due to the 
> lack of funding for additional servers?  It would be 
> beneficial to have two clusters; an online and offline 
> cluster.  The Online cluster would reside in your main DC, 
> and the offline cluster would reside in your DR site.
> Data/volumes would be replicated between the two SAN's/NAS's 
> in real time (preferably with a dedicated line, or a shared 
> line would be sufficient.
> It's all dependant on the total amount of data you are going 
> to be replicating).
> 
> I LOVE this subject SSSSOOOOO much (along with the Vmware topic)!
> 
> Chris
> 
> > -----Original Message-----
> > From: thin-bounce@xxxxxxxxxxxxx
> > [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of Daniel Schoppmann
> > Sent: Thursday, April 22, 2004 11:04 PM
> > To: thin@xxxxxxxxxxxxx
> > Subject: [THIN] Re: Short question (Streched Cluster 
> Support in W2K3 
> > Enterprise Edition ?)
> > 
> > Thank U, Ron, Jon and Chris for your discussion so far
> > 
> > The guys from Veritas also introduced to us the Replica Solution.
> > But we have a dark fibre (2GBit) between our Datacenters and SAN is 
> > available in both places.
> > So isn't it better to build a mirror with the Veritas 
> Volume Manager.
> > Of Course their told us about some Problems that might occour, that 
> > are ony solved in the new Veritas Cluster Server
> > 4.1 Has anyone used or using a streched Veritas Cluster ? 
> > What are recommendations ?
> > Seems to me that Replica Solution is best when you doesn't 
> have a fast 
> > connection between the two Data Centers, isn't it?
> > 
> > Ciao, Daniel
> > 
> > -----Original Message-----
> > From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx]On
> > Behalf Of Ron Oglesby
> > Sent: Friday, April 23, 2004 4:34 AM
> > To: thin@xxxxxxxxxxxxx
> > Subject: [THIN] Re: Short question (Streched Cluster 
> Support in W2K3 
> > Enterprise Edition ?)
> > 
> > 
> > SAN replication has come so far (not to mention the 
> snapping, rollback 
> > abilities, Specific application snapping etc.) that it is almost a 
> > shame NOT to replicate data.
> > 
> > Ron Oglesby
> > Senior Technical Architect
> > Microsoft MVP - Windows Server
> > 
> > RapidApp, Chicago
> > Mobile 815 325-7618
> > Office 312 372-7188
> > e-mail roglesby@xxxxxxxxxxxx
> > 
> > 
> > -----Original Message-----
> > From: thin-bounce@xxxxxxxxxxxxx
> > [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of Rowlandson, John
> > Sent: Thursday, April 22, 2004 6:01 PM
> > To: thin@xxxxxxxxxxxxx
> > Subject: [THIN] Re: Short question (Streched Cluster 
> Support in W2K3 
> > Enterprise Edition ?)
> > 
> > Mallesons Stephen Jaques
> > www.mallesons.com
> > 
> > Confidential communication
> > 
> > 
> > 
> > thats exactly what we do cluster in primary, cluster in DR, 
> replicated 
> > = data
> > 
> > 
> > John (san administrator hat on!)
> > 
> > 
> > 
> > -----Original Message-----
> > From: thin-bounce@xxxxxxxxxxxxx
> > [mailto:thin-bounce@xxxxxxxxxxxxx] On = Behalf
> > 
> > That is very true.  It's not really recommended, but you have the = 
> > option.
> > It would be a much better solution to have a SAN or NAS in two = 
> > locations, have two nodes per cluster and replicate the 
> data between 
> > the shared storage.  That would give you full redundancy (service 
> > level, and site = level for DR).
> > 
> > Chris=20
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