Hi all,
RS-232 Serial Port hubs seem to be a little hard to come by, and the ones I
have found are quite expensive.
COuld we could achieve the same using USB terminals and a 16 port USB hub?
-Grant
----- Original Message -----
From: "Andrew P." <[EMAIL PROTECTED]>
To: "Grant Peel" <[EMAIL PROTECTED]>
Cc: <freebsd-questions@freebsd.org>
Sent: Sunday, October 16, 2005 8:44 AM
Subject: Re: Remote Console
On 10/16/05, Grant Peel <[EMAIL PROTECTED]> wrote:
Thanks Andrew,
So If I understand your reply, a setup like this should always give me
access to any of the servers by SSHing to one server, then CUing to get to
the console of the 'broken' one, regardless of its state (assuming the
disks
are OK, and boot stage 1 worked):
(WAN Shown, LAN Same, using seperate nics on Servers and Switch)
ISP's router
|
My Switch
--------------------------------------------------------------------------------
| | | |
|
Serv1 Serv2 Serv3 Serv4
Serv5
Serial1--------->Serial2
Serial1------------->Serial2
Serial1------------>Serial2
Serial1---------->Serial2
Can more than 1 console access type be specified in loader.conf ?
i.e.
console='serialconsole'
console='videoconsole'
When using 'serial console, does anything have to be specified to use
serial
2?
What is the default local console, how is it specified?
i.e. the one you use when you plug a keyboard and monitor directly
into
the machine?
Would I need to install any other software other than the client (CU)?
-GRant
I haven't configured comconsoles myself, I just happen
to work at a place where they are used heavily (Sun
ALOM mostly, but built-in LOMs and FreeBSD software
comsonsoles also). Please consult the Handbook and
google, I'm sure there's nothing difficult to it.
I would not support your chaining idea, though. It's
the only one that requires $0.00 budget, but COM
hubs are cheap today. If you rent rackspace, I'm
sure your colocation provider can offer you some
kind of non-expensive remote management. If
rackspace is free, consider buying some hardware
(like a COM hub).
The matter is, that you'll want 9600 bps speeds
for max compatibility. While it is usable for
occasional failure recovery, chaining it would
make it lag too much.
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