[Asterisk-Users] Qs about FXO/FXS cards

[brian at txshirts.com]

Steven,
  If we grant that you are correct and that Digium and friends are
making hobbyist products..... Then what are the "serious" installs
using?  We're serious to the tune of 5 FXO ports and 3 FXS ports and I
want to make sure we don't waste time on flaky hardware.  I figured that
as Digium built the hardware and wrote the original code they probably
know it better then anyone else.  You just seem to know a lot about the
serious installs so I'm curious what you use and how many lines you run
with it.

Btw, we are a textbook "small office" install according to the docs.

Also what the heck is FC?   


Brian Greul
Texas Shirt Company
www.txshirts.com
713-802-0369 / 713-861-6261 (fax)

-----Original Message-----
From: Steven Critchfield [mailto:critch at basesys.com] 
Sent: Monday, January 03, 2005 2:07 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [Asterisk-Users] Qs about FXO/FXS cards

On Tue, 2005-01-04 at 09:06 +1300, Richard Scobie wrote:
> 
> Steven Critchfield wrote:
> 
> > Okay, link this to my rambling above and you would see that by 
> > thrashing the disk, you are actually keeping the spindle spooled up 
> > and not measuring the spool up draw. My guess is a spooled down 
> > machine getting a random incoming call that then must generate ring
and spool up the
> > HD(s) to start writing logs at the same time on a questionable PSU.

> 
> ??!  Who set's up servers with hard drives that are spun down?
> 
> Powered down hard disks are for laptops and specialised setups where 
> power consumption is critical. These are probably not where people 
> install serious asterisk servers.

And we come full circle to a comment I made before that TDM cards are
more for hobbyist than for real serious installs. A real install is
probably going to use a T1/E1 interface and bypasses all the troubles
listed in this thread.

So far I don't trust that many of the people using TDM cards are the
ones who will tweak a system into a serious install. Look at previous
threads about system load spikes where we have to pull teeth to get
people to swap out of a FC kernel and into a generic kernel.
--
Steven Critchfield <critch at basesys.com>

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