how much VMs we can install on vmware esx server

[ashu_wifi1]

just for knowledge :smileygrin:

Thanks

[RDPetruska]

Install/create? Infinite.

Run at once? Depends on your resources.

[ashu_wifi1]

Thanks for reply sir,

actually i was asking for how many we can create and how many can run at the same time if we have all compatible resources on esx server and also on vmware workstation and on vmware server

[Texiwill]

Hello,

There are 192 vCPUs available per host so you can create enough VMs to fill 192 vCPUs. However, the actual amount depends on the size of your VMs, the number of vCPUs per VM, and the amount of memory for each VM, as well as the bandwidth required for each VM.

In essence, it depends.... Let's look at just memory:

16GB System... You can have 1 8GB VM or 3 4GB VMs or 7 2GB VMs or 15 1 GB VMs or 30 512MB VMs or 60 256MB VMs or some mix between all these numbers. remember you need to leave 1GB just for the SC/vmkernel (less can also be used, but I rather be conservative). You can add more if you overcommit memory, use the balloon driver or see less usage of memory due to TPS or the application itself not using as much memory as you expected.

So it depends.

Best regards,

Edward L. Haletky

VMware Communities User Moderator

====

Author of the book 'VMWare ESX Server in the Enterprise: Planning and Securing Virtualization Servers', Copyright 2008 Pearson Education.

SearchVMware Blog: http://itknowledgeexchange.techtarget.com/virtualization-pro/

Blue Gears Blogs - http://www.itworld.com/ and http://www.networkworld.com/community/haletky

As well as the Virtualization Wiki at http://www.astroarch.com/wiki/index.php/Virtualization

[Steven1973 · Accepted solution]

Hi all,

Besides the maximum number of 192 vCPU's there are other maximums to take into consideration.

- The maximum number of VM's per host is 170 at the moment.

- There is also a maximum for vCPU's per physical CPU core. For ESX 3.5 u2 this is 8 (or 11 for VDI workloads) So a 2-way Dual Core system can handle 32 of 44 vCPU's.

- In ESX 3.5 u3 this is now 20 vCPU's per physical core.

See the "Configuration Maximums for VMware Infrastructure 3" and the release notes for ESX 3.5 Update 3 for more details.

One of our customers is running into these maximums using SUN SunFirex4600 ESX hosts with 8 Dual Core AMD Opteron CPU's.

After starting VM 168 he is running into problems starting new VM's. So the limit of 170 VM's is not even reached.

-- Steven

[ashu_wifi1]

Thanks Sir,

your answer was the most practical one to undersand but i didnt understand how can we have 192 physcical cpu r u talking about virtual cpu"s ? pls tell me about this with an example becoz iam an un-intelligent :smileylaugh: boy and u didnt mention about maximum amount of vms can be create/install/run on vmware workstation and also on vmware server

waiting for reply eagerly :smileycool:

[Troy_Clavell]

this http://www.vmware.com/pdf/vi3_35/esx_3/r35u2/vi3_35_25_u2_config_max.pdf may be helpful as well.

[langadi]

"VC Server with minimum hardware support 20 concurrent client connections, 50 managed hosts and 1000 VMs –

using dual CPUs and 3GB RAM can scale to 50 concurrent clients, 100 hosts and 2000 VMs "

I got this information from my VCP study but i did'nt had chance to create 2000 VMs.

-langadi