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Old 07-23-2013, 07:19 AM   #1
drManhattan
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Distribution: Ubuntu 10.04 LTS on IBM Lenovo R61e, RHEL5-6,SLES10-11
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hardware platform for KVM home infrastructure


Hi

I would like to setup my own home infrastructure.
I need the following services :
- VPN (openVPN)
- HTTP (apache)
- MAIL (postfix)
- CIFS (samba)
- Backup (Linux Mint)

I would like to use CentOS KVM as hypervisor and create virtual machines for above services.

What kind of hardware you advice to use as hypervisor ?
 
Old 07-24-2013, 02:46 PM   #2
jefro
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Some of the most modern servers are the best products since they have the most advanced virtual hardware support.

Some of the Intel core i7 processors were slightly better. It think it was the 3770K or such but almost any processor and board that supports VT in either amd or intel would do.

Since you are building many systems, consider your memory requirements. The more vm's you have the more resources you would need.


Your load projection would dictate the hardware. Anything from Revo raid cards to quad gig nic might be needed for some highest loads.

Some of the soho servers might be a consideration. Some companies like HP have some choices for both low cost and low power and high reliability.
 
Old 07-26-2013, 03:03 PM   #3
gradinaruvasile
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Quote:
- VPN (openVPN)
- HTTP (apache)
- MAIL (postfix)
- CIFS (samba)
These services can be run on a single machine (virtual or not). If you build a multi core dedicated machine with lots of RAM, why not just run these services on it without virtualization? You will have the best performance - running separate vms eats extra memory, and slows down disk i/o because anyway each vm will have to access the same disks and if run separately, you will have more parallel i/o because of the multiple OSes. Just a thought.

back to the original idea:
Now it really depends on whats your target budget, but ideally you need a quad (not dual+hyperthreading!) CPU. This means Intel I5 or higher (i3s are duals with hyperthreading) or any AMD quad/hexa/octo core. Now these services dont need much CPU power normally (i have seen older dual-cpu single-core 2 GHz AMD servers coping without issues with the above services in a corporate environment) so any decent quad/quad+ AMD (A8/A10 on FM2 platform or fx-4xxx/6xxx/8xxx on Am3+ platform or any intel I5) would do it. Or a quad Xeon.

What you need is fast memory (ddr3 at least 1600Mhz, dual channel, at least 8 GB or more if you need vms) and fast hdds if you have high volume of traffic (samba), also mandatory gigabit network adapters + switches for the internal LAN.

P.S. I run OpenVPN on my home computer (used by a few clients and me if im away) and i dont even feel its there when i do stuff on the rig, also i have a vm for web development (i sometimes experiment with new stuff on my computer and i need a stable corner...) and it uses next to nothing CPU cycles (but i have little traffic on it, i do web development and some clients check the work in progress sometimes). What the vm visibly uses is memory. Anyway, i can do everything i need (work) and want(games) with these in background with no interference on a quad core AMD A8-5500 cpu and 4 GB RAM (although planning upgrade to 8 GB mainly to allow more video memory).

Last edited by gradinaruvasile; 07-26-2013 at 03:04 PM.
 
  


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