http://itsjustanotherlayer.com/2009/06/cluster-size-of-8-is-the-only-size-to-do/ Virtualization is a layer in software. What are you abstracting away from? Sat, 17 Jul 2010 12:16:13 +0000 http://wordpress.org/?v=2.9.2 hourly 1 http://itsjustanotherlayer.com/2009/06/cluster-size-of-8-is-the-only-size-to-do/comment-page-1/#comment-1563 iguy Thu, 20 May 2010 01:20:44 +0000 http://itsjustanotherlayer.com/?p=158#comment-1563 To my knowledge and testing you should be fine going above an 8 host cluster if you don't mind having 40 or less VMs per host average. It is all around HA working. I haven't had an issue with the # of LUNs per cluster (256 max) causing an issue yet. I have a couple clusters currently with 10 hosts and around 400 VMs in the cluster and about 25 or so LUNs. So for me to hit the 256 I'm going to have to really pack in the VMs since there is a 32 Host Cluster limit at this time too. To my knowledge and testing you should be fine going above an 8 host cluster if you don’t mind having 40 or less VMs per host average. It is all around HA working. I haven’t had an issue with the # of LUNs per cluster (256 max) causing an issue yet. I have a couple clusters currently with 10 hosts and around 400 VMs in the cluster and about 25 or so LUNs. So for me to hit the 256 I’m going to have to really pack in the VMs since there is a 32 Host Cluster limit at this time too.

]]> http://itsjustanotherlayer.com/2009/06/cluster-size-of-8-is-the-only-size-to-do/comment-page-1/#comment-1562 Sean Clark Wed, 19 May 2010 17:52:55 +0000 http://itsjustanotherlayer.com/?p=158#comment-1562 Ian, that all being said. If you are fine with 40 or less VMs per host, there is nothing wrong with a larger cluster is there? Generally, I see 8 or less more for storage limitations (# of LUNs) than for arbitrary software limitations of VMware. Ian, that all being said. If you are fine with 40 or less VMs per host, there is nothing wrong with a larger cluster is there? Generally, I see 8 or less more for storage limitations (# of LUNs) than for arbitrary software limitations of VMware.

]]> http://itsjustanotherlayer.com/2009/06/cluster-size-of-8-is-the-only-size-to-do/comment-page-1/#comment-1267 iguy Tue, 02 Jun 2009 03:27:51 +0000 http://itsjustanotherlayer.com/?p=158#comment-1267 Hrm.. didn't quite beat you to this information Duncan. :) Hrm.. didn’t quite beat you to this information Duncan.

]]> http://itsjustanotherlayer.com/2009/06/cluster-size-of-8-is-the-only-size-to-do/comment-page-1/#comment-1266 Duncan Mon, 01 Jun 2009 20:14:47 +0000 http://itsjustanotherlayer.com/?p=158#comment-1266 http://www.yellow-bricks.com/2009/05/25/max-amount-of-vms-per-host/ http://www.yellow-bricks.com/2009/05/25/max-amount-of-vms-per-host/

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