How to calculate the maximum number of Wirth. machines according to the characteristics of the server?

Question

Virtualization

Good afternoon! Tell me

how it is calculated! The approximate number of virtual machines that can be deployed on a server of a certain performance, for example:
Intel® Core™ i7-4770 32 GB DDR3 RAM

- Server 2012, from software - 1C, and possibly - Mic. office.

The calculation is necessary for companies (not for the service), you need to understand how many servers you need approximately. Thank you!

Answer 1

So it all depends on your goals. For example, 2012 with AD for 50 people works on 1GB, server 1c 7.7 for 2008 needs ~ 150MB for a simple user with one database. Now twenty people in 1s consume about 5 GB.
Need details.

Answer 2

! approximate

=== Exact
isn't it? 32 GB - 1 GB (for the host OS) = 31 GB / (RAM for a virtual machine,
for example 512MB) = 62 virtual machines of Threads 8 , it follows that 8 - 1 = 7 virtual machines will work "comfortably" at the same time. But there is no real way to find out how much , except for a full-scale test with raising virtual machines

Answer 3

It's the same as calculating how many pancakes you can eat at lunch, it depends on how hungry you are and whether the pancakes are delicious, and with the server
what will be on the server
how many services will eat the RAM and disk subsystem
on such a config I had a terminal for 50 people in Internet office and 1s skype icq, comfortable work was in the aisle of 45 people

Answer 4

People, what are you talking about? The bottleneck of either the desktop or the server is the disk subsystem. How many times can you run an OS on one hard drive at the same time? Any task of simple virtualization must be evaluated by the bottleneck of iron.
If you answer the question, then you can deploy at least 50 pieces, but this will not work normally. How much memory do you need for normal system operation? The minimum requirement for w7 is 2 gigabytes of memory. Even if you don’t launch anything heavy there, then it’s unlikely that you will be able to work without brakes, because. if there is not enough memory, it will be swapped to disk, which in turn will slow down other VMs.
Therefore, approximately take into account from 2 gig per system and up to two virtual machines per physical hdd. If you put ssd under the VM, then it will work much better with a lack of memory, because. even if the system goes into a deep swap, then the speed of ssd will take it out, with a reasonable approach, of course.

Answer 5

hetzner EX40, I understand.
8 machines (if full virtualization, and with Windows it will be), then the machines begin to fight for the disk.
You can hardly fit 16 machines, but if they start doing something with the disk at the same time, all users will enjoy the whole 2IOPS per virtual machine.
Just share the rest.