We virtualize every asterisk install, and have achieved density levels of 80MB RAM per install of asterisk. We do it all day, every day.<div><br></div><div>As Chris wrote if you're putting it on shared hardware that you don't control, just don't. If you control all of the hardware it's very doable.</div>
<div><br></div><div>Thanks</div><div>David<br><br><div class="gmail_quote">On Sun, Jun 10, 2012 at 3:07 PM, Chris Bagnall <span dir="ltr"><<a href="mailto:asterisk@lists.minotaur.cc" target="_blank">asterisk@lists.minotaur.cc</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im">On 8/6/12 9:17 pm, Hiers, Richard wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I don't expect to need to use any special hardware, just a sip trunk over our broadband connection. We have about 150 phones at present. Is ESX a viable platform for us? And second, what is the recommended virtual configuration (mem, cpu, etc.)? Any other considerations?<br>
</blockquote>
<br></div>
I think the concern expressed about running Asterisk on a virtualised platform is more to do with the impact the other load on the host machine might have on your Asterisk VM. If you're using ESX in a shared hosting environment where you have very little control over the other workload on that host, then sooner or later there's a risk your VM is going to experience spikes in latency.<br>
<br>
On the other hand, if you're running a virtualised platform internally where you can control precisely the load on the host machine, then you'll probably find you're fine.<br>
<br>
FWIW, we run Asterisk under Xen in production. Some of the VMs have well over a thousand connected SIP devices and we've yet to encounter significant problems. But we're able to control the other VMs on the hosts very precisely: the only other VMs running on those hosts provide low-load services such as rsync for remote backup (which is only used late at night when call load is low on the Asterisk VMs).<br>
<br>
Running Asterisk in a VM, even if it's the only VM on that host, does give you some considerable benefits in the event of host machine failover: hardware independence and live migration are the two that spring immediately to mind.<br>
<br>
Kind regards,<br>
<br>
Chris<span class="HOEnZb"><font color="#888888"><br>
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