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4.8.3 alt-sysrq
One of the reasons yo
u may be configuring SOL is for utilizing the alt-sysrq "magic key sequence".
En
ter the command:
> sysctl -w kernel.sysrq = 1
This will update that value in /etc/sysctl.conf and also set the value in
oc/sys/kernel/sysrq to 1.
/pr
4.8.3.1
SOL using a Linux client
1.
First, telnet to the MM and login. The
console -T system:blade[x]
where x is the target blade number.
2. (here is the trick) Once you have an SOL connection, hit the escape sequ
].
This should bump you to a telnet prompt.
send brk
3
. Next, type
4. Then hit the sysrq comma
It should look like this:
Figure
36 alt-sysrq from Linux client
4.8.3.2 alt-sysrq from a Windows Client
For a Windows client, you need t
package. I was not able to get this working using regular
H
yperte
rminal didn't work either.
1. First, telnet to the MM and login. Th
console -T system:blade[x]
where x is the target blade number.
2.
(here is the trick) From th
3. Then hit the sysrq command key you want. Start with
maximum output level.
Version 3.0, 3/10/2006
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IBM BladeCenter Deployment Guide
n, e
nter the command
and hit enter. You'll get a new line, but no output.
nd key you want such as h or m or p or w.
o use PuTTY, or alternately, the telnet client from the cygwin
en, enter the command
e PuTTY pulldown menu, click on Special Command -> Break.
http://w3-03.ibm.com/support/techdocs/atsmastr.nsf/WebIndex/WP100564
ence which is
telnet application in Windows.
sysrq h.
Use
sysrq 8
ctrl-
for
37
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