OK Ron, the principle sounds great, a bit like Legato Octopus, but would this work in a SAN environment? Can you set up the ESX passive nodes server to address all the shared LUNs of each cluster, but still ensure that only relevant LUNs can be presented to each virtual node? Regards David Lee -----Original Message----- From: Ron Oglesby [mailto:roglesby@xxxxxxxxxxxx] Sent: 29 January 2004 22:21 To: thin@xxxxxxxxxxxxx Subject: [THIN] Re: OT vmware Well lets hit these a little bit..... Lets assume you have the need to Cluster 10 servers. That means 20 nodes total in an active passive config for each box. (depending on hardware config of course and if you use a passive node for more than one cluster etc...) Anyway What IF you could take one Quad processor box, and use it to host ESX with 10 VMs hosting the passive nodes...... in a failure of any one of the active nodes you would get the same performance as having a physical box if not better, or you could sustain a failure on two physical nodes, and still be at about 98% performance on the virtual clusters that take over. In either case it truly saves on the amount of physical hardware required for cluster environments. Or if you need multiple servers clustered and these server wont use a lot of the processor and memory available in one of the DL 380 clusters in a box. You could configure ESX to host multiple virtual clusters on the single set of hardware and get hardware redundancy and software redundancy and save a good amount on hardware.... Ron Oglesby Senior Technical Architect Microsoft MVP, Windows Server RapidApp Office 312.372.7188 Mobile 815.325.7618 email roglesby@xxxxxxxxxxxx -----Original Message----- From: Adam.Baum@xxxxxxxxxxxxxx [mailto:Adam.Baum@xxxxxxxxxxxxxx] Sent: Thursday, January 29, 2004 8:34 AM To: thin@xxxxxxxxxxxxx Subject: [THIN] Re: OT vmware Ron, Near the end of your msg, you mentioned clustering. I am about to embark on designing the server infrastructure for our new art center. I'm contemplating clusters for three reasons: 1) The Arts center is a revenue generator so I want to ensure that we can sell tickets 24x7. 2) The majority of events take place after normal business hrs - meaning limited support staff which also means longer time for someone like me to drag my @ss out of bed to drive in and fix things. 3) The Arts center is the core of our dowtown redevelopment and is HIGHLY visible - politics require that I want to keep my job, I keep the systems up. I think I could use VMware for better resource utilization, but how does it help when you are trying to have physical redundancy? adam ******************************************************** This Week's Sponsor - Emergent Online 99Point9.com EOL THINssentials(tm) Bring You TRUE Universal Printing Solutions and Time Zone Support. EOL delivers any print job, any time zone, to any client, over Any protocol (ICA or RDP)! http://www.99point9.com/public/products/index.asp ********************************************************* Useful Thin Client Computing Links are available at: http://thethin.net/links.cfm *********************************************************** For Archives, to Unsubscribe, Subscribe or set Digest or Vacation mode use the below link: http://thethin.net/citrixlist.cfm ******************************************************** This Week's Sponsor - Emergent Online 99Point9.com EOL THINssentials(tm) Bring You TRUE Universal Printing Solutions and Time Zone Support. EOL delivers any print job, any time zone, to any client, over Any protocol (ICA or RDP)! http://www.99point9.com/public/products/index.asp ********************************************************* Useful Thin Client Computing Links are available at: http://thethin.net/links.cfm *********************************************************** For Archives, to Unsubscribe, Subscribe or set Digest or Vacation mode use the below link: http://thethin.net/citrixlist.cfm ******************************************************** This Week's Sponsor - Emergent Online 99Point9.com EOL THINssentials? Bring You TRUE Universal Printing Solutions and Time Zone Support. EOL delivers any print job, any time zone, to any client, over Any protocol (ICA or RDP)! http://www.99point9.com/public/products/index.asp ********************************************************* Useful Thin Client Computing Links are available at: http://thethin.net/links.cfm *********************************************************** For Archives, to Unsubscribe, Subscribe or set Digest or Vacation mode use the below link: http://thethin.net/citrixlist.cfm