Hello, As you know, the number of Virtual Machines per host depends on available resources (CPU, RAM, Disk), as well as the demands of the image. As a general guide, I have found the following to be reasonable. Other admins, please share your opinions.
For a single VM host with 12 virtual CPU and 98 GB RAM, I typically allocate 25 Windows VM. When necessary, I have raised it to 32 Windows XP machines. For linux based images, I have used 50 VM without issues. Monitor the performance tab on your vSphere client to see if the host is over-worked. On Virtual Machines that require higher performance, I usually will not place them on a host with more than 10 working VM. But the most important thing is to watch the performance closely. You will get a feel for how many VM per host by experience. As always, your mileage may vary. Regards, Al Quiros Florida International University From: <Sanders>, Arbin D <asand...@nccu.edu<mailto:asand...@nccu.edu>> Reply-To: "vcl-u...@incubator.apache.org<mailto:vcl-u...@incubator.apache.org>" <vcl-u...@incubator.apache.org<mailto:vcl-u...@incubator.apache.org>> Date: Wednesday, May 23, 2012 3:53 PM To: "'firstname.lastname@example.org<mailto:'email@example.com>'" <firstname.lastname@example.org<mailto:email@example.com>>, "'vcl-u...@incubator.apache.org<mailto:'vcl-u...@incubator.apache.org>'" <vcl-u...@incubator.apache.org<mailto:vcl-u...@incubator.apache.org>> Subject: Max Number of VMs per Host All, What is the number of VMs do you all run per VMware host? Is it limited to the RAM limitation for vSphere 5? How many purchase vSphere licenses? Arbin Darren Sanders IT Manager – Academic Computing North Carolina Central University 712 Cecil Street Suite 3014 Durham, NC 27707 919.530.6307 919.530.5097 (Fax) For the Latest ITS Updates and Tips Join Us Online [Description: Description: Description: Description: cid:image003.png@01CB6AD0.97665900] <http://www.facebook.com/profile.php?id=66100342#!/pages/Durham-NC/NCCU-Eagle-Technical-Assistance-Center-ETAC/249508718552?v=info> [Description: Description: Description: Description: cid:image004.png@01CB6AD0.97665900] <http://twitter.com/NCCUETAC> CONFIDENTIALITY: This email (including any attachments) may contain confidential, proprietary and privileged information, and unauthorized disclosure or use is prohibited. If you received this email in error, please notify the sender and delete this e-mail from your system. ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please visit http://www.symanteccloud.com ______________________________________________________________________