How about other hypervisors? KVM limits?

Arbin D. Sanders

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-----Original message-----
From: Dmitri Chebotarov <dcheb...@gmu.edu>
To: "vcl-u...@incubator.apache.org" <vcl-u...@incubator.apache.org>
Cc: "vcl-u...@incubator.apache.org" <vcl-u...@incubator.apache.org>, 
"vcl-dev@incubator.apache.org" <vcl-dev@incubator.apache.org>
Sent: Thu, May 24, 2012 17:54:59 EDT
Subject: Re: Max Number of VMs per Host

This link may be helpful

http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2000935



On May 24, 2012, at 5:32 PM, Alexander Patterson 
<alexander.patter...@csueastbay.edu> wrote:

> I'm not sure from what I have been reading, might want to contact your
> VMware Rep and see what they can do if you plan on upgrading to 5.
>
> WIth ESXI 4.1
>
> Infrastructure limitations
> Some limitations in ESX Server 4 may constrain the design of data centers:
> Guest system maximum RAM: 255 GB
> Host system maximum RAM: 1 TB[
> Number of hosts in a high availability cluster: 32
> Number of Primary Nodes in ESX Cluster high availability: 5
> Number of hosts in a Distributed Resource Scheduler cluster: 32
> Maximum number of processors per virtual machine: 8
> Maximum number of processors per host: 160
> Maximum number of cores per processor: 12
> Maximum number of virtual machines per host: 320
> VMFS-3 limits files to 262,144 (218) blocks, which translates to 256
> GB for 1 MB block sizes (the default) or up to 2 TB for 8 MB block
> sizes.However, on a VMFS Boot drive, it is usually very difficult to
> use anything other than 1 MB Block size
>
> With ESXI 5 there has been some changes to these limits
> Guest system maximum RAM: 1 TB
> Host system maximum RAM: 2 TB
> Number of hosts in a high availability cluster: 32
> Maximum number of processors per virtual machine: 32
> Maximum number of processors per host: 160
> Maximum number of cores per processor: 25
> Maximum number of virtual machines per host: 512
> VMFS-3 is supported and has the same limits as before
> VMFS-5 however has a max volume size of 64 TB and a max file size of 2
> TB - 512 B
> How much vRAM does a VMware vSphere Hypervisor license provide?
> vSphere Hypervisor license provides a vRAM entitlement of 32GB per
> server, regardless of the number of physical processors. vSphere
> Hypervisor can be used on servers with maximum physical RAM capacity
> of 32GB.
>
> On Thu, May 24, 2012 at 2:20 PM, Sanders, Arbin D <asand...@nccu.edu> wrote:
>> Alexander,
>>
>> What if I use the paid version of vSphere5? And I have 96 GB of memory? 
>> Could I get more than 20 VMs?
>>
>> 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
>>
>> 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.
>>
>>
>> -----Original Message-----
>> From: Alexander Patterson [mailto:alexander.patter...@csueastbay.edu]
>> Sent: Thursday, May 24, 2012 5:17 PM
>> To: vcl-dev@incubator.apache.org
>> Cc: vcl-u...@incubator.apache.org
>> Subject: Re: Max Number of VMs per Host
>>
>> Hello,
>>
>> ESXI 5 is limit by licenses with the amount of ram you can run on each 
>> machine.
>> The 8 GB vRAM limit is for the upcoming 5.0 free Hypervisor, the 4.x version 
>> had no such memory limits.
>> VM makes you pay now if you want to use X amount of ram per host with the 
>> upcoming version.
>>
>> Making 4.1 I Free Version a much more attractive option to go with
>>
>> We have each of our blades running ESXI 4.1 with 16 Cores and 48 GB of ram 
>> and we have 20 VM's per blade but we give 1.5 GB of ram to each VM.
>>
>> More info here
>> http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1014006
>>
>> -Alex
>>
>> On Thu, May 24, 2012 at 2:09 PM, Sanders, Arbin D <asand...@nccu.edu> wrote:
>>>
>>> I am planning on using a free version of vSphere 5 depending on the how 
>>> many VMs I can get. I would like to get 50 VMs per host.
>>>
>>>
>>>
>>> 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
>>>
>>>
>>>
>>> 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.
>>>
>>>
>>>
>>> From: Dmitri Chebotarov [mailto:dcheb...@gmu.edu]
>>> Sent: Thursday, May 24, 2012 12:01 PM
>>> To: vcl-dev@incubator.apache.org
>>> Cc: vcl-u...@incubator.apache.org
>>>
>>>
>>> Subject: Re: Max Number of VMs per Host
>>>
>>>
>>>
>>> Here is some info:
>>>
>>>
>>>
>>> http://myvirtualcloud.net/?p=1155
>>>
>>>
>>>
>>> This is for VMware View which could

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