Monitor HPE MSA 2050

General
1

Hi,

one of our customers has a HP MSA 2050 and with SNMP we get only Interface002, Interface003, SNMP Info and Uptime.

How can we get more data?

We are using 1.5.0p23 Managed Service Edition.

TIA,
Roland.

2

Does the target system export more information?
If not, sounds like a config issue.
If it does, you have to check why the inventory function doesn’t get hit.

3

MSA has only very limited information with SNMP.
You need to configure the special agent “agent_hp_msa”.
First you need to check if your MSA is working with the special agent.

If it is working you should get some more checks then.

Best regards
Andreas

4

If I switch from SNMP to the HP-MSA Agent, I get this:

CRIT - no unmonitored services found, no vanished services found, [special_hp_msa] Agent exited with code 1: Connection error: ‘NoneType’ object has no attribute ‘groups’

5

How does the output / error message looks like on the command line?

6

Here the full traceback. Hope it helps. :slight_smile:

~$ cmk -IIv --debug stor_hp_msa2050
Discovering services on: stor_hp_msa2050
stor_hp_msa2050:
+ FETCHING DATA
 [special_hp_msa] Execute data source
 [special_hp_msa] ERROR: Agent exited with code 1: Connection error: 'NoneType' object has no attribute 'groups'
Traceback (most recent call last):
  File "/omd/sites/intern/bin/cmk", line 96, in <module>
    exit_status = modes.call(o, a, opts, args)
  File "/omd/sites/intern/lib/python/cmk_base/modes/__init__.py", line 80, in call
    return mode.handler_function(*handler_args)
  File "/omd/sites/intern/lib/python/cmk_base/modes/check_mk.py", line 1451, in mode_discover
    options["discover"] == 1)
  File "/omd/sites/intern/lib/python/cmk_base/discovery.py", line 124, in do_discovery
    multi_host_sections = _get_host_sections_for_discovery(sources, use_caches=use_caches)
  File "/omd/sites/intern/lib/python/cmk_base/discovery.py", line 764, in _get_host_sections_for_discovery
    return sources.get_host_sections(max_cachefile_age)
  File "/omd/sites/intern/lib/python/cmk_base/data_sources/__init__.py", line 305, in get_host_sections
    host_sections_from_source = source.run()
  File "/omd/sites/intern/lib/python/cmk_base/data_sources/abstract.py", line 130, in run
    raw_data, is_cached_data = self._get_raw_data()
  File "/omd/sites/intern/lib/python/cmk_base/data_sources/abstract.py", line 181, in _get_raw_data
    raw_data = self._execute()
  File "/omd/sites/intern/lib/python/cmk_base/data_sources/programs.py", line 62, in _execute
    return self._get_agent_info_program(command_line)
  File "/omd/sites/intern/lib/python/cmk_base/data_sources/programs.py", line 102, in _get_agent_info_program
    raise MKAgentError("Agent exited with code %d: %s" % (exitstatus, stderr))
cmk_base.exceptions.MKAgentError: Agent exited with code 1: Connection error: 'NoneType' object has no attribute 'groups'
7

This is not the special agent output.
Please do a “cmk -D stor_hp_msa2050” then you find the line “Type of agent:”
There you should see the command line for the special agent.

Check the command and run it with debug enabled.

8

For your version of 1.5.0p23 check
/opt/omd/versions/default/share/check_mk/agents/special/agent_hp_msa
around line 182.

Change

session_key = re.match('.*"response">(.*?)<.*', r.text).groups()[0]

to

session_key = re.search('.*esponse">(.*?)<.*', r.text).groups()[0]

In my version 1.6.0p6.cre the extracting of the session key has been updated, there is a new
class HPMSAConnection(object)
in /opt/omd/versions/1.6.0p6.cre/share/check_mk/agents/special/agent_hp_msa

I’m new to CheckMk and I have to figure out how to patch an check agent that it survives omd update.

9

Thanks a lot, that worked like a charm.

10

You can put your modified special agent to “~/local/share/check_mk/agents/special/” and it will survive the update.

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