Unix administration - Re: Help: tip hardwire problem between SunFire 6800 and SunBlade100

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Author Re: Help: tip hardwire problem between SunFire 6800 and SunBlade100
Doug Freyburger

2005-01-27, 5:52 pm

Humphrey Channey wrote:
>
> Our SunFire 6800 server is currently running Solaris 8 and Veritas VM
> 3.5-mp3. Our management console is a SunBlade 100 which runs Solaris

8
> also. All along, we use the CAT5 serial cable (RJ45 jack at both end)
> for connection to domain/platform, specifically, 9pin-female

connector
> (back of SunBlade) to 25pin conctor (at "A" slot in SC0 back of
> SunFire). It's been working fine until now. Our prompts just sits
> there after "tip hardwire" command as below :
>
> mgnt-console # tip hardwire
> connected
> : < prompt just sits there ; no response
> from RETURN key>
> : <no domain/platform menu >
> ~.
> [EOT]
>
> There was no physical change to the above serial connection or
> /etc/remote file. We've tried to reseat the connectors at both ends

of
> the serial cable but to no avail.
> Any ideas how we can resolve this.


If there have been no physical changes then there was a software
change. Or your belief that there have been no physical changes
is mistaken.

There are more software settings than just in /etc/remote.

I recall getting this problem when modem control was turned
on for a serial line and the device I used did not support
modem control. You have an 8-pin connection, so it should
support all of the modem signals.

1) The Sunfire 6800 switched to using modem control on its
serial line.

2) The Sunblade 100 stopped using modem control on its serial
line.

Alternate possibility - The SunFire 6800 turned off its
login monitor on it's serial line. "man pmadm" "pmadm -l"
Also ttymon(1M) and sacadm(1M).

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