rp7420 - Log in to MP from within HPUX 11.23?

[ronlevyca]

For certain versions of the L2000/rp5450 it was possible to log in to the GSP from within the operating system. I recall using this in the past to change GSP settings in a remote site when I found myself unable to actually contact the GSP. It was also possible to send a reset to the GSP and so forth.

Is there any similar thing for an rp7420 running HPUX 11.23? Again, the machine is up and running and contactable. I can ping the MP and my network guys tell me it has a connection and is up, but it refuses connections. If I were local I would hook up a console, but it's in New York and I'm in San Francisco.

[Bill Hassell]

Early on, there was some code that allowed you to send commands directly to the GSP (in addition to a GSP reset). However, that feature silently disappeared a while ago. The GSP is a separate processor with a separate LAN port so using telnet from HP-UX to the address of the GSP works just fine. But I would strongly recommend creating a separate (and isolated) maintenance subnet for all GSP connections as well as other appliances such as routers, firewalls, etc. The GSP has the ability to turn off power, disable cells, even reset the running computer, but the security of the GSP port is very primitive and needs to be protected.

You can still reset the GSP but setting new network values (IP, gateway, subnet mask, etc) will generally require a serial connection (laptop and crossover cable). Another alternative is to use a serial port concentrator for all the servers and appliances. The serial port can be protected with modern concentrators with SSH. Lights out management requires a lot more planning than most sysadmins realize.

[Avinash20 · Accepted solution]

#stty +queryGSP < /dev/GSPdiag1

the above command will give you the status of MP from OS.

[Tingli]

What does "refuses connection" mean? Does that mean you don't know the password or something else?

Or you can ask the data center people to set up a tmp password for you.

[ronlevyca]

Wonderful! When I use:
# stty +queryGSP < /dev/GSPdiag1

It tells me:
GSP needs to be reset.

What is the command to send a reset to the MP from inside HP-UX?

(To answer the other question; when I attempt to telnet to the MP in question it just times out and I never connect, I never get a login, I never get anything. We did have a power outage some time ago and it's quite possible that that left the MP in a slightly munged state and it just needs a reset.)

[ronlevyca]

I should add that I don't want to reset the password or the network settings; I just want to issue a reset command so it reboots itself.

[Kris Knigga]

Give this a try:

# stty +resetGSP < /dev/GSPdiag1

[ronlevyca]

Whoops. I just did a:

# stty +resetGSP < /dev/GSPdiag1
GSP reset failed.

So it looks like that won't do it all alone.

[Kris Knigga]

The only other way I know of to reset the MP is to press the little button on the back.

[Avinash20]

http://docs.hp.com/en/A5191-96018/ch04s01.html#d0e2008

Reset the MP manually and check

Please assign point to this thread

[Torsten.]

Sure you try connect to the correct IP or hostname? Just to think about ... ;-)

Important question: Did it work before?

With telnet? With ssh? With browser?




BTW, the "internal" connection on l-class servers is long time ago - disabled on a certain FW version.

[ronlevyca]

Thanks much. I'm going to have to have a technician in to both connect to the MP on the console, and reset it if it is still working.