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mailinglist at asyoune...
Guest
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 Posted: Wed Apr 30, 2008 7:11 am Post subject: [asterisk-users] Asterisk on Xen or Dedicated |
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Hi All,
I am trying to decide weather to move my asterisk setup on to a Xen
setup or not. I do use transcoding, meetme and music on hold although in a
purely sip scenario real lines are handled via cisco kit. Currently its a
dedicated box with X100P card for timing handling it however it's starting
to get a bit long in the tooth and I want to replace it. I currently handle
up to 45 simultaneous calls but this will be doubling in the next year.
Question is do I still need to worry about timing and if so can this be
resolved in a Xen enviroment?
One other question is how does multi cpu's scale is it better to have a
highspeed dual core or a lower speed quad core?
Any pointers greatly appreciated.
Dee |
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stotaro at totarotechn...
Guest
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| Posted: Wed Apr 30, 2008 7:15 am Post subject: [asterisk-users] Asterisk on Xen or Dedicated |
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On Wed, Apr 30, 2008 at 8:11 AM, Dee Lowndes <mailinglist at asyouneed.com> wrote:
| Quote: | Hi All,
I am trying to decide weather to move my asterisk setup on to a Xen
setup or not. I do use transcoding, meetme and music on hold although in a
purely sip scenario real lines are handled via cisco kit. Currently its a
dedicated box with X100P card for timing handling it however it's starting
to get a bit long in the tooth and I want to replace it. I currently handle
up to 45 simultaneous calls but this will be doubling in the next year.
Question is do I still need to worry about timing and if so can this be
resolved in a Xen enviroment?
One other question is how does multi cpu's scale is it better to have a
highspeed dual core or a lower speed quad core?
Any pointers greatly appreciated.
Dee
|
Just shooting from the hip but if you have the ability to use a
dedicated box for Asterisk, then go that route.
Xen has a very high cool factor and may work OK with Asterisk but why
take the chance unless it is just a dev environment?
Thanks,
Steve Totaro |
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mailinglist at asyoune...
Guest
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| Posted: Wed Apr 30, 2008 9:29 am Post subject: [asterisk-users] Asterisk on Xen or Dedicated |
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On 30/04/2008 13:15, "Steve Totaro" <stotaro at totarotechnologies.com> wrote:
| Quote: | On Wed, Apr 30, 2008 at 8:11 AM, Dee Lowndes <mailinglist at asyouneed.com>
wrote:
| Quote: | Hi All,
I am trying to decide weather to move my asterisk setup on to a Xen
setup or not. I do use transcoding, meetme and music on hold although in a
purely sip scenario real lines are handled via cisco kit. Currently its a
dedicated box with X100P card for timing handling it however it's starting
to get a bit long in the tooth and I want to replace it. I currently handle
up to 45 simultaneous calls but this will be doubling in the next year.
Question is do I still need to worry about timing and if so can this be
resolved in a Xen enviroment?
One other question is how does multi cpu's scale is it better to have a
highspeed dual core or a lower speed quad core?
Any pointers greatly appreciated.
Dee
|
Just shooting from the hip but if you have the ability to use a
dedicated box for Asterisk, then go that route.
Xen has a very high cool factor and may work OK with Asterisk but why
take the chance unless it is just a dev environment?
Thanks,
Steve Totaro
|
I see your point however I guess I just like to get the most use and
flexibility out of my hardware. So having the 8 Core 8GB server I have setup
only for Asterisk seems a bit overkill.
I may end up having to purchase a more sensible spec for the asterisk box
hence the question about dual or quad.
Dee |
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tzafrir.cohen at xorco...
Guest
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| Posted: Wed Apr 30, 2008 9:36 am Post subject: [asterisk-users] Asterisk on Xen or Dedicated |
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On Wed, Apr 30, 2008 at 03:29:35PM +0100, Dee Lowndes wrote:
| Quote: | I see your point however I guess I just like to get the most use and
flexibility out of my hardware. So having the 8 Core 8GB server I have setup
only for Asterisk seems a bit overkill.
I may end up having to purchase a more sensible spec for the asterisk box
hence the question about dual or quad.
|
Consider lighter forms of virtualization as well: openvz /
linux-vserver.
--
Tzafrir Cohen
icq#16849755 jabber:tzafrir.cohen at xorcom.com
+972-50-7952406 mailto:tzafrir.cohen at xorcom.com
http://www.xorcom.com iax:guest at local.xorcom.com/tzafrir |
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oza-4h07 at myamail.com
Guest
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| Posted: Wed Apr 30, 2008 1:02 pm Post subject: [asterisk-users] Asterisk on Xen or Dedicated |
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2008/4/30 Tzafrir Cohen <tzafrir.cohen at xorcom.com>:
| Quote: |
Consider lighter forms of virtualization as well: openvz /
linux-vserver.
|
Which would allow to "allocate" a given PCI card to a given virtual machine
(without being too difficult to learn and manage) ?
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hwit at a-domani.nl
Guest
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| Posted: Wed Apr 30, 2008 5:33 pm Post subject: [asterisk-users] Asterisk on Xen or Dedicated |
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On Wed, 2008-04-30 at 13:11 +0100, Dee Lowndes wrote:
| Quote: | Hi All,
I am trying to decide weather to move my asterisk setup on to a Xen
setup or not. I do use transcoding, meetme and music on hold although in a
purely sip scenario real lines are handled via cisco kit. Currently its a
dedicated box with X100P card for timing handling it however it's starting
to get a bit long in the tooth and I want to replace it. I currently handle
up to 45 simultaneous calls but this will be doubling in the next year.
Question is do I still need to worry about timing and if so can this be
resolved in a Xen enviroment?
One other question is how does multi cpu's scale is it better to have a
highspeed dual core or a lower speed quad core?
Any pointers greatly appreciated.
Dee
|
Yes, you can.
I have both the latest 1.4 and also 1.6 running as a XEN-dom-u.
Used SuSE-10.3 as dom-0 and dom-u and prebuild asterisk rpm from the
build-server. No problem what so ever, although just pure digital call.
Big question remains, why would you want to do it?
In my case, a test environment, it makse sense.
I can freeze the image and use the footprint for other experiments.
For production however, i would rather see my pabx running on a
dedicated platform, as small as possible (no-break-power backup), not a
power hungry large server.... |
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George.Pajari at netvo...
Guest
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| Posted: Wed Apr 30, 2008 6:27 pm Post subject: [asterisk-users] Asterisk on Xen or Dedicated |
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| Quote: | On Wed, 2008-04-30 at 13:11 +0100, Dee Lowndes wrote:
| Quote: | ...Question is do I still need to worry about timing and if so can this be
resolved in a Xen enviroment?...
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We're an ITSP and use OpenVZ to offer customers Virtual Private Asterisk
Servers (see www.vpas.ca) -- the same idea as Virtual Private Servers in
the Linux world but with Asterisk added.
Because of our network architecture, we chose to put the Digium cards in
dedicated (i.e. not virtualised) servers acting as gateways to several
OpenVZ servers so that the base environment (called VE0 in OpenVZ
nomenclature) does nothing but load the ztdummy module. All the client
VEs communicate with one or more SBCs or media gateways (i.e. servers
with Digium Quad-PRI cards) using SIP or IAX.
Each virtual environment has access to a pseudo timer so they can run
meetme conferences etc.
Works very very well. We've migrated existing Asterisk configurations
from dedicated servers to OpenVZ virtual servers for customers who
cannot tell the difference. And a lot cleaner and more secure than
trying to run multi-tenant configurations/dialplans within a single
asterisk instance (which we still do for some customers for historical
reasons).
Sorry but we've no experience running Asterisk on Xen -- we looked at
Xen way back when were deciding on which way to go and chose OpenVZ
because it was (at least for us) easier to get running, easier to
support ztdummy, and more efficient (i.e. thinner) than Xen.
| Quote: | | Quote: | One other question is how does multi cpu's scale is it better to have a
highspeed dual core or a lower speed quad core?
|
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We use both and given the modest load you're proposing, it won't matter
-- get the cheapest. Our benchmarks showed that we get more bang for the
buck with X3210 Quad Core Xeons than the dual cores and so that is what
we've standardised on for now but YMMV.
--
George Pajari (dCAP), netVOICE communications 604 484 VOIP(8647) x102
www.netvoice.ca www.ip-centrex.ca www.ip-pbx.ca www.vpas.ca
www.digium.ca www.grandstream.ca www.sipura.ca www.snom.ca
Open Source VoIP/Telephony Specialists 1 877 NET VOIP (638 8647 x102) |
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mailinglist at asyoune...
Guest
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| Posted: Thu May 01, 2008 8:26 am Post subject: [asterisk-users] Asterisk on Xen or Dedicated |
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On 01/05/2008 00:27, "George Pajari" <George.Pajari at netvoice.ca> wrote:
| Quote: |
| Quote: | On Wed, 2008-04-30 at 13:11 +0100, Dee Lowndes wrote:
| Quote: | ...Question is do I still need to worry about timing and if so can this be
resolved in a Xen enviroment?...
|
|
We're an ITSP and use OpenVZ to offer customers Virtual Private Asterisk
Servers (see www.vpas.ca) -- the same idea as Virtual Private Servers in
the Linux world but with Asterisk added.
Because of our network architecture, we chose to put the Digium cards in
dedicated (i.e. not virtualised) servers acting as gateways to several
OpenVZ servers so that the base environment (called VE0 in OpenVZ
nomenclature) does nothing but load the ztdummy module. All the client
VEs communicate with one or more SBCs or media gateways (i.e. servers
with Digium Quad-PRI cards) using SIP or IAX.
Each virtual environment has access to a pseudo timer so they can run
meetme conferences etc.
|
How does the pseudo timer compare to having a Digium card when handling
large number of calls in a meetme conference?
Also have you tried OpenVZ with a digium card does it allow direct access to
it?
| Quote: |
Works very very well. We've migrated existing Asterisk configurations
from dedicated servers to OpenVZ virtual servers for customers who
cannot tell the difference. And a lot cleaner and more secure than
trying to run multi-tenant configurations/dialplans within a single
asterisk instance (which we still do for some customers for historical
reasons).
|
I quiet like the sound of that as it does get a bit messy all on one
asterisk instance.
| Quote: |
Sorry but we've no experience running Asterisk on Xen -- we looked at
Xen way back when were deciding on which way to go and chose OpenVZ
because it was (at least for us) easier to get running, easier to
support ztdummy, and more efficient (i.e. thinner) than Xen.
| Quote: | | Quote: | One other question is how does multi cpu's scale is it better to have a
highspeed dual core or a lower speed quad core?
|
|
We use both and given the modest load you're proposing, it won't matter
-- get the cheapest. Our benchmarks showed that we get more bang for the
buck with X3210 Quad Core Xeons than the dual cores and so that is what
we've standardised on for now but YMMV.
|
Thanks for the pointers.
Dee |
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