On Tue, 2011-11-01 at 12:08 -0500, Tim Nelson wrote: > Greetings- > > I'm about to dive into the process of virtualizing some of my Asterisk > (primarily 1.4.x) infrastructure. In the past, when looking at virt > solutions, the primary issue preventing me from moving was the lack of proper > timing. We do not need it for MeetMe but rather for IAX2 trunking. I'd like > to use either OpenVZ or KVM, but each seem to have independent "issues" that > need to be addressed: > > OpenVZ - Better resource usage, lower overhead. Primary issue is how to grant > access to host node timing source (physical device, or dahdi_dummy in > /dev/dahdi/) to the containerized Asterisk process. > > KVM - Higher overhead, easier installation, 'true virtualization'. Primary > issue is not timing per se, but KVM scheduling. Timing source, while present > from dahdi_dummy natively may still not get proper scheduling by KVM process. > This could also affect general call quality (even non IAX2 trunked voice), > DTMF, etc. > > I have to believe there are others running virtualized Asterisk installations > with some degree of success on OpenVZ or KVM. Care to share your thoughts? > You mist out one more mature virtualization technique: XEN Virtual machines can use both hardware- or paravirtualization. I have used both asterisk (1.4, 1.6.x and now 1.8) to separate machines where people should do their sip-registration (internet / intranet / pstn-gateway) and the actual dial-beast.
Main advantage for virtualization is (besides easy scaling) that you can perform an upgrade in no-time (one VM-machine down, other up) Don't like it: back in seconds! Migration with an asterisk on real hardware takes much more resources. Both in iron and in time. hw -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
