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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.
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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