William - You should take a look at the foneBRIDGE, new product from
redFONE. It has (4) PRI interfaces, and you run our to your primary and
failover Asterisk servers via Ethernet. It does not do load balancing.
but if you have a hardware failure in your primary Asterisk box, you can
just fail right over to your secondary box. You don't need any PRI
interface cards in your Asterisk host server at all.
Cory J Andrews
Partner / Purchasing
+++++++++++++++
VOIPSupply.com - Everything you need for VOIP
454 Sonwil Drive
Buffalo, NY 14225
+++++++++++++++
tf voice - 800-398-VOIP X22
l voice - 716.630.1555 X22
f - 716.630.1548
e - [EMAIL PROTECTED]
AIM - b2Cory
William Boehlke wrote:
In our opinion, BAD idea to put four T1s on a single box, unless you
have another box that also has 4 T1s.
When, not if, the board fails, you have to take your box down to
replace it. And as with anything having to do with computers you are
guaranteed a failure at a peak time.
Better to split the load between two boxes.
William Boehlke
Signate
------------------------------------------------------------------------
*From:* [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] *On Behalf Of *Chad
Osmond
*Sent:* Tuesday, August 16, 2005 12:15 PM
*To:* Asterisk Users Mailing List - Non-Commercial Discussion
*Subject:* RE: [Asterisk-Users] quad t1 / 1U rack server combos
From what I understand (From Sangoma's tech support) and having a IBM
x306 SCSI system with an A102u I believe that the system will scale up
to 4xT1's easily.
With a full T1 of traffic coming in and playing music on hold, the CPU
was at 7% with no transcoding.
Sangoma cards are supposed to place less draw on the interrupts and
offer some new direct writing to DMA in their A104 cards. You may want
to give them a call (Scott or Nenad are the two best people to speak
with).
From Sangoma README.asterisk:
* Voice data is channelized and grouped into 8 byte chunks in
HARDWARE. Each voice channel is then DMAed directly into the
ZAPTEL buffers. Thus there is ZERO copy from HARDWARE to ZAPTEL,
resulting in better performance and scalability.*
It sounds to me like that would be once advantage over Digiums cards.
They also have Hardware PRI functions that are passed directly to libpri.
http://sangoma.com/linux/README.asterisk
Hope that helps.
Chad
------------------------------------------------------------------------
*From:* [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] *On Behalf Of *Damon
Estep
*Sent:* August 16, 2005 12:33 PM
*To:* [email protected]
*Subject:* [Asterisk-Users] quad t1 / 1U rack server combos
It is amazing to me at this point that there is not an official Digium
list of supported servers (including 1u models!). Clearly the number 1
issue with the Digium PRI cards is the server that they are used in.
The new cards even go as far as listing server that DO NOT work on the
Digium site!
The wiki references are old and do not have any testing parameters.
C’mon guys! Certify a few current model servers and be done with it.
Without that information I must again ask the question;
What 1u server combos work with the new quad pri cards UNDER LOAD
(more than 75% channel use). Every user that buys a Digium PRI card
should not have to play hit or miss with 2 or 3 servers that cost more
than the card to get it to work.
Please Please Please publish something useful to support the sale of
PRI cards.
Damon
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