At Wit's End on system freezes

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On 24 Nov 1998, Joseph L. Kaiser wrote:

> Hi,
> 
> This is addressed to whoever can help.  I am at my wit's end.  I am the
> systems administrator for a small medical transcription company in
> Golden, Colorado.  We are running RedHat Linux 4.2 with the 2.23.30
> kernel.  I have a set of four Zoom modems on a RocketPort 16 port PCI
> board; the modems are used for both dialout (sending completed work to
> clients) and dialin (receiving work from transcriptionists) and are on a
> rollover line so they are accessed in sequence.  We are using "mgetty"
> 1.1.15 for the getty processes on all of the modems and we use Kermit
> 6.1 for all the dialout scripting and the dialin file transfer programs.
> 
> The problem is, in short, that my system periodically freezes and it
> appears to be as a result of just Kermit or Kermit and mgetty.

I too had problems with the RocketPort boards.

Needing 24x7 reliability, I changed to the Cyclades multiport
boards.  They work well.  An 8-port ISA board currently costs ca
$359.

I have an 80486 DX4/100 running 24 modems using the Cyclades 16
port + 16 port add-on.

It has been down three times since 1994.  UPS batteries died
twice, and I don't know why it crashed the third time.


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