Page History

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• request unix-admin to give them login access to the suncat machines

• Wiki Markup
  add them to the LSF queue permissions list with _ypgroup adduser \-group suncat-norm \-user <username> \[-user ...\]_

• if appropriate, add them to majordomo list with approve <password> subscribe suncat-l <emailaddr>
• if appropriate, add them to .mailrc suncatcomp list

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Red Hat Enterprise Linux Client release 5.5 (Tikanga)
Kernel 2.6.18-194.11.1.el5 on an x86_64

suncat0006 login: 
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Use Esc-( to get to the hpiLO prompt.

Useful commands (I think you need to "cd system1" before these will work):

power on
power off
exit

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You can also connect to the HP Baseboard Management Controller (ie, IPMI)
on the serial port by pressing

Esc-(    \[that is, escape followed by shift-9)

Then press enter once. You will get this "Login: " prompt with a capital L.
This the BMC login prompt:

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/./-> exit

Command Line Interface (CLI)
Copyright 2004-2008 ServerEngines Corporation
All rights reserved.

Login: 
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login: Login timed out 
Red Hat Enterprise Linux Client release 5.5 (Tikanga)
Kernel 2.6.18-194.11.1.el5 on an x86_64

suncat0006 login: 
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When you are connected to the linux serial port console (and NOT the BMC) you
can send the kernel SysRq commands. See this page if you are unfamiliar with
the linux kernel SysRq facility:

http://en.wikipedia.org/wiki/Magic_SysRq_key^{Image Removed}

You can send the kernel sysrq commands by first sending a break signal on
the serial port console, followed by a single character which represents a
command, eg, hard reset, show memory, etc.
You can send a break followed by a space to see the possible commands.

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SysRq : HELP : loglevel0-8 reBoot Crashdump tErm Full kIll thaw-filesystems(J) saK showMem Nice powerOff showPc unRaw Sync showTasks Unmount shoWcpus 

The Capital letters show the character that you use for each action. For example,
to show current memory statistics, you use 'M'.

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For CPU usage monitoring:

http://ganglia02.slac.stanford.edu:8080/ganglia/batch/?m=load_one&r=week&s=descending&c=suncat&h=&sh=1&hc=4&z=small^{Image Removed}

To look for memory/CPU problems:

http://nagios.slac.stanford.edu/nagios/cgi-bin/status.cgi?hostgroup=SUNCAT%20cluster&style=detail^{Image Removed}

There is also some history in /scswork/ranger

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