Re: clustering

From: Jerry Leslie (leslie@clio.rice.edu)
Date: 03/31/02 

From: leslie@clio.rice.edu (Jerry Leslie)
Date: 31 Mar 2002 04:31:25 GMT

Christopher L. Estep (pghammer21@comcast.net) wrote:
:
: The strict definition for clustering is two (or more) physical servers
: treated as a single logical server.
:
: This has long been possible in UNIX;

And even long in VMS; since 1985, per:

  http://www.openvms.compaq.com/openvms/os/openvms-release-history.html
  OpenVMS.Compaq.com

: Windows 2000 Server was the first NT-based operating system for server
: to support clustering.
:
There are several references to "Wolfpack", an earlier clustering project at:

  http://www.research.microsoft.com/~Gray/
  Jim Gray Microsoft Research

  http://research.microsoft.com/~gray/Wolfpack_Compcon.doc

Several origanizations who lost a datacenter in the WTC attacks lost NO
data or transactions, thanks to their multi-site VMSClusters, which have
had their trial by fire before:

  http://www.success-stories.digital.com/css/cgi-bin/cssextusr/s=display/i=30
  Success Stories: Credit Lyonnais
  VMS Clusters' Trial By Fire

--Jerry Leslie (my opinions are strictly my own)

Relevant Pages

  • HA & Failover options
    ... instances for all the technology components (App Server, DB Server, ... Application Server 10g Release 3 and Oracle Database Release 2. ... Clustering features. ... how instantaneous is failover to the secondary site with data ...
    (comp.databases.oracle.server)
  • Re: Replication with failover clustering??
    ... We are having Merge Replication setup with push subscription. ... Microsoft SQL Server clustering is not a good fit for geospatial clustering ... Both clustering and database mirroring do do automatic failover, ...
    (microsoft.public.sqlserver.replication)
  • Re: Choosing correct high availability setup
    ... won't be supported/allowed with Windows Server 2008 Failover Clustering. ... No matter how you do your SQL, IIS will need to know the instance name to ...
    (microsoft.public.sqlserver.clustering)
  • Re: Exchange 2003 SP1, Windows 2003 SP2
    ... and then performed an Upgraded Virtual Server procedure. ... really old and only applies if you already have Exchange Server 2003 SP1, ... MVP - Windows Server - Clustering ... before upgrading to SP2 on a clustered exchange back-end. ...
    (microsoft.public.windows.server.clustering)
  • Re: how much difference is between deploying a j2ee application in Z/Os and in windows?
    ... It looks that clustering and load balancing differ when we come down to implementation in Windows and zOS. ... for example we have two dual processor dell server which will run application server, we cluster application servers instance that are running on those two machines, this clustering will help us to replicate common data like sessions, timers, etc. ...
    (bit.listserv.ibm-main)