asterisk users - Dec 2003 - clicking and popping using T100P resolved

I have been struggling for weeks to figure out why I would get clicking 
and popping with my T100P card used with a TA750 channel bank.  It was 
most obvious during dial tone or other sustained tones, but could also 
be detected during conversation.  For the most part, it was one little 
click or pop every 3 or 4 seconds, but could be more prolonged.  The 
most annoying thing was that, if a click happened during a DTMF tone, it 
would be interpreted as two digits rather than one.

My machine is plenty fast, with a 2.8 ghz hyperthreading processor and 1 
GB of RAM, and there was never any signifcant load.  I even tried 
terminating all user space programs, running basically only the kernel 
and asterisk, but it made no difference.

I finally figured out that the clicking was due to software raid.  I 
have bought a 3ware hardware raid card and converted all of the 
filesystems.  And no more clicking and popping.  So beware of trying to 
use asterisk with software raid.

I am not looking for comments.  I am posting this so that it gets 
archived, in the hope that it will save somebody else some time.

> I finally figured out that the clicking was due to software raid.  I
> have bought a 3ware hardware raid card and converted all of the
> filesystems.  And no more clicking and popping.  So beware of trying to
> use asterisk with software raid.
I think it's something more specific than that...  I am running * with a 
T100P on a cheapass all-in-one Duron1300 system with a RAID card but only 
being used for the extra channels -- two 60G drives in Linux software RAID1 
running off the card.

The box also runs a Postgres database, web server and some hefty Perl 
scripts for the intranet and I've never had problems like what you 
described.  Are you sure you didn't have the IDE channel(s) and the T100P 
on the same interrupt or something odd like that?

Regards,
Andrew