Posts tagged BladeCenter

Nagios: check_snmp again

Feb 27th

Posted by Christian in Life

Well, today I had to grind my head again, regarding the way check_snmp handles WARNING and CRITICAL events. From my point of view, check_snmp is really just retarded sometimes.

As you know, all the other plugins accept WARNING and CRITICAL-thresholds based on the calculation, if the return integer is above this threshold it reached WARNING/CRITICAL state. But check_snmp doesn’t play that way.

It expects only ranges, which are NOT gonna result in warning or critical events. Which is kinda stupid, since you gotta rethink twice about the thresholds :P 

define service {
  use                   generic-service
  host_name             ibm-bc1-mgmt
  service_description   Chassis Cooling - Bay 1
  check_command         check_snmpv1_public!.1.3.6.1.4.1.2.3.51.2.2.3.20.0!\
                                            1900:8000!1900:0,10000:8000!\
                                            RPM!Chassis Cooling - Bay 1
  action_url            /pnp/index.php?host=$HOSTNAME$&srv=$SERVICEDESC$
  notes                 View PNP RRD grap
}

All in all, another lesson learned :eek:

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Setting up the BladeCenter H

Jan 28th

Posted by Christian in Life

2 comments

Well, we finally had our maintenance window today, in which we planned the hardware exchange for our current Dell Blade Chassis (don’t ask!). The exchange went fine, but as we started exploring the components (like the IBM BladeCenter SAN switches — which are in fact Cisco MDS 9100) we hit a few road blocks.

First, the default user name/password combo for the Cisco MDS 9100 for the BladeCenter is USERID/PASSW0RD (just as the rest of the password combinations).

Next, we started tinkering around with the Catalyst Switch modules. A hint to myself:

Whenever setting up the switch via the WebGUI, make sure you setup both passwords. The password for the switch itself (when prompted by the WebGUI, enter “admin” as well as the password you just entered.

Now, you should be able to connect to the switch with telnet and be able to access the EXEC mode (and unlike me who struggled ~30 minutes till one of my trainees told me to enter a switch password — out of curiosity).

Now, here the list of commands I needed to setup the switch’s “basics”:

service password-encryption
username admin privilege 15 password 0 <password>
clock timezone CET 1
clock summer-time CET recurring last Sun Mar 2:00 last Sun Oct 3:00
ip domain-name home.barfoo.org
ip name-server 10.0.0.2
ip name-server 10.0.0.1
line con 0
 login local
line vty 0 4
 password <password>
 login local
line vty 5 15
 password <password>
 login
ntp server 160.45.10.8
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