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Hello, I have some CyberPower CDU's model 41101. I have had some success using SNMP to collect data from them, the outlet names and notes will populate, but I can not get any load data or outlet on/off status from them. I have tried several OID's that will supply the data in question, and I can snmpget from the openDCIM host computers command line and collect the data also. I have added "POLL" and "OPTIN" tags to the devices. I believe I have the cron jobs for the scripts correct now (I got my env sensors working). I have not tried switches yet, thats next..... I am relatively new to SNMP stuff and openDCIM, and pretty rusty on linux, but I got this far.....
Any thoughts? only thing I can think of for the status is that it responds 1 for on and 2 for off, instead of a binary 0 or 1. not sure what openDCIM expects to see or how it would know what to expect if that output is not standard..... Oh this also sounds something like this issue #1464 , so I ran the SQL query suggested in that thread and the results look ok to me:
I see that user apparently gave up. I am a little more stubborn.....any help very much appreciated. |
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Replies: 15 comments 25 replies
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Hi, |
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oh and maybe the 'Outlet State (on)' Attribute just takes the Value for On. In your case '1'? |
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running snmp walk from the command line to that OID returns correct values 1 for outlets that are on, and 2 for those that are off. I did not try running the crontab entry manually so let me try that, it's a good idea for sure. thank you. |
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The biggest thing jumping out at me is that you do not have the community string set on the device. Also, the Tag should be Poll. Not sure if POLL will work. I just enabled one of mine:
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Though Community string is not set in my screenshot I did later set it with no change. I had caps lock on when I typed poll the first time. Now no matter how I type it in, when i update it refreshes in all caps..... would changing from opt in to opt out have any effect? those settings are not obvious at first, esp since the section with optin/out refers to switches and not SNMP devices in general. However, all of the things you listed ARE currently working for me, it is just the outlet state and power draw that are not functioning (and should, because I can SNMP walk and get the data... Thanks for the ideas. |
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Try OptIn I believe that works too |
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HMM. so typing the command from crontab that executes the script directly into the command line I get "could not perform walk" for a number of the OID's. trying to walk those oids directly from the command line succeeds??? is this a permissions issue? It always seems like every problem I have in Linux comes down to a permissions issue :) |
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also poll_temperature_sensors works fine....so maybe is there something I am supposed to edit in that php script that polls pdus? or there is some error? another thing I tried is to add the OID for outlets state to the outlet notes section, and when I refresh notes,the little switch looking icon pops up for a few seconds and it populates correctly with 1 for on and 2 for off. when i run the refresh status the little switch looking icon only pops up long enough to see it and closes. see below outlets 1-12 are on and 13-24 are off. |
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Look closer and you will see a difference between the OID it is trying to walk and the one you are using on the command line.
Scott
…________________________________
From: ArumBlack ***@***.***>
Sent: Thursday, June 27, 2024 9:58 AM
To: opendcim/openDCIM ***@***.***>
Cc: Subscribed ***@***.***>
Subject: Re: [opendcim/openDCIM] CDU not pulling load info or outlet status (Discussion #1542)
HMM. so typing the command from crontab that executes the script directly into the command line I get "could not perform walk" for a number of the OID's.
trying to walk those oids directly from the command line succeeds??? is this a permissions issue? It always seems like every problem I have in Linux comes down to a permissions issue :)
2024-06-27.08_55_43-Window.png (view on web)<https://github.com/opendcim/openDCIM/assets/120606523/9966606f-8768-436d-8f7f-bb02e3d42f54>
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There is a difference for the second snmpwalk. But the first seems identical snmpwalk |
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You are correct I made a typo on the second one. correecting it still works and returns the firmware version. the first one is the current draw which returns 8, and the gui shows .8A so with a multiplier of .1 it should be correct. |
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on outlet count = control your oid with snmpwalk or snmpget, result number of outlet (24) |
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Fantastic! That works. I think I had tried an OID in that fild, but clearly it doesn't say OID next to it like the rest, I really wasn't sure what went there, but that makes sense it wants the value that represents ON state.... So that is working now. Any thoughts on Amperage and firmware version not reading when the script runs? but when I manually SNMP walk I get the expected response? |
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I am Getting "Could not perform walk for OID x" regardless whether the OID is Blank or any oid, so it seems like maybe there is something wrong with my install. I have tried disabling the firewall, but that doesn't change anything and also running snmpwalk from the command line works fine, just the script always throws this error. I have tried looking at the code to see where the error comes from but I'm just very basic with PHP / Coding in general so I am not able to figure it out yet. 
Thank you to everyone who has helped me get this far, I truly Appreciate it! |
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hi, 1 - Walk through SNMP manually using tools like snmpwalk to see if you can retrieve information from the specified OID ... |
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I have this working now.the key was the difference between snmpwalk, and snmp get. and the confusion was the error on the script stating it could not perform walk....so I was using OID's that worked with snmp walk, and wondering why they fail. I had to go 1 level deeper to get it to work so firmware really needed .1.3.6.1.4.1.3808.1.1.3.1.3.0, not .1.3.6.1.4.1.3808.1.1.3.1.3. same for load. |
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Thanks again to all who Assisted. |
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Yeah I have seen that before. Snmp walk will succeed and sometimes you
don't notice that the OID that it used is not the same one as you're using.
As you saw, sometimes they're a little longer and you need to use the more
specific one.
…On Tue, Jul 2, 2024, 2:42 p.m. ArumBlack ***@***.***> wrote:
I have this working now.the key was the difference between snmpwalk, and
snmp get. and the confusion was the error on the script stating it could
not perform walk....so I was using OID's that worked with snmp walk, and
wondering why they fail. I had to go 1 level deeper to get it to work so
firmware really needed .1.3.6.1.4.1.3808.1.1.3.1.3.0, not
.1.3.6.1.4.1.3808.1.1.3.1.3. same for load.
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Is someone here with knowledge for Rittal CMC3 MIB? |
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Good morning sometimes the mib files are available in the admin interface of the devices for download otherwise on the manufacturer's website. If not found, then use software to explore the mibs, there are several free software like "oid view" if you have an export file with the oid addresses listed and the values in table form, make a new post on this subject to answer and I'll take a quick look and see if I can help |
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----------OID CDU RITAL CMC III for OpenDCIM---------- Outlet Count: Outlet State: Outlet Name: Outlet Description: Phase 1 Power Watt: Phase 2 Power Watt: Phase 3 Power Watt: Control multiplier, if OID: 1.3.6.1.2.1.47.1.1.1.1.16.1 result watt then multiplier 0 ------------ SENSOR---------- Humidity Value: Control multiplier and units after add this in your data center use IP and config SNMP the same of CDU Go and joy ! look ma work on |
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I expected the FW to be a singular OID (aka snmpget) but it does not exist. A snmpwalk shows a lot of integer values Similarly outlet count returns a bunch of strings and state returns integers, which are way outside of your described ranges. I get the feeling the OID.101041 to OID.101280 are what we are searching for. I will try with those OIDs but you have to explain to me, why it works, if it does. Cheers, |
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hi |
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I will prepare the text files. I just remembered, the PDU seems to automatically generate a text file with the OIDs of all devices OID_List.cmc3.txt |
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outletname.txt These are the responses (all walk) for your mentioned OIDs. |
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Firmware Version: Outlet Count: Outlet State: Outlet Name: Outlet Description: Phase 1 Power Watt: Phase 2 Power Watt: Phase 3 Power Watt: Humidity Value: Temperature Value: Go.. |
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Difference between snmpwalk and snmpget In the mib, it is organized in a tree structure. |
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Firmware seems correct. OID for phases that work for me are: |
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I found something half-way(?) working: |
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I just tried another Version, which does not work but the mib looks much more compact |
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@samilliken The Rittal MIB is displaying 33 variables per outlet. Integer representation would be at 1.3.6.1.4.1.2606.7.4.2.2.1.11.2.X+7 (for State). Writing this, I notice how hard it even is to grasp and describe the Rittal logic. |
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Nope, if the OIDs are not consecutive, we do not support it.
Scott
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Sent: Monday, July 8, 2024 5:06 AM
To: opendcim/openDCIM ***@***.***>
Cc: Scott Milliken ***@***.***>; Comment ***@***.***>
Subject: Re: [opendcim/openDCIM] CDU not pulling load info or outlet status (Discussion #1542)
I just tried another Version, which does not work but the mib looks much more compact
Firmware Version: 1.3.6.1.4.1.2606.7.4.1.2.1.11.1
Outlet Name:
Outlet Description: 1.3.6.1.4.1.2606.7.4.2.3.1.4.44.2
Outlet Count:
Outlet State: 1.3.6.1.4.1.2606.7.4.2.4.1.5.5.2 (11: On, 10: Off)
Phase 1 Power Watt: 1.3.6.1.4.1.2606.7.4.2.2.1.11.2.56
Phase 2 Power Watt: 1.3.6.1.4.1.2606.7.4.2.2.1.11.2.99
Phase 3 Power Watt: 1.3.6.1.4.1.2606.7.4.2.2.1.11.2.142
But it seems, the 'jump' in numbers is not supported by OpenDCIM.
SNMPv2-SMI::enterprises.2606.7.4.2.3.1.4.44.2.157 = STRING: "C13"
SNMPv2-SMI::enterprises.2606.7.4.2.3.1.4.44.2.190 = STRING: "C13"
SNMPv2-SMI::enterprises.2606.7.4.2.3.1.4.44.2.223 = STRING: "C13"
SNMPv2-SMI::enterprises.2606.7.4.2.3.1.4.44.2.256 = STRING: "C13"
SNMPv2-SMI::enterprises.2606.7.4.2.3.1.4.44.2.289 = STRING: "C13"
SNMPv2-SMI::enterprises.2606.7.4.2.3.1.4.44.2.322 = STRING: "C13"
SNMPv2-SMI::enterprises.2606.7.4.2.3.1.4.44.2.355 = STRING: "C13"
SNMPv2-SMI::enterprises.2606.7.4.2.3.1.4.44.2.388 = STRING: "C13"
SNMPv2-SMI::enterprises.2606.7.4.2.3.1.4.44.2.421 = STRING: "C19"
SNMPv2-SMI::enterprises.2606.7.4.2.3.1.4.44.2.454 = STRING: "C19"
SNMPv2-SMI::enterprises.2606.7.4.2.3.1.4.44.2.487 = STRING: "C13"
SNMPv2-SMI::enterprises.2606.7.4.2.3.1.4.44.2.520 = STRING: "C13"
SNMPv2-SMI::enterprises.2606.7.4.2.3.1.4.44.2.553 = STRING: "C13"
SNMPv2-SMI::enterprises.2606.7.4.2.3.1.4.44.2.586 = STRING: "C13"
SNMPv2-SMI::enterprises.2606.7.4.2.3.1.4.44.2.619 = STRING: "C13"
SNMPv2-SMI::enterprises.2606.7.4.2.3.1.4.44.2.652 = STRING: "C13"
SNMPv2-SMI::enterprises.2606.7.4.2.3.1.4.44.2.685 = STRING: "C13"
SNMPv2-SMI::enterprises.2606.7.4.2.3.1.4.44.2.718 = STRING: "C13"
SNMPv2-SMI::enterprises.2606.7.4.2.3.1.4.44.2.751 = STRING: "C19"
SNMPv2-SMI::enterprises.2606.7.4.2.3.1.4.44.2.784 = STRING: "C19"
SNMPv2-SMI::enterprises.2606.7.4.2.3.1.4.44.2.817 = STRING: "C13"
SNMPv2-SMI::enterprises.2606.7.4.2.3.1.4.44.2.850 = STRING: "C13"
SNMPv2-SMI::enterprises.2606.7.4.2.3.1.4.44.2.883 = STRING: "C13"
SNMPv2-SMI::enterprises.2606.7.4.2.3.1.4.44.2.916 = STRING: "C13"
SNMPv2-SMI::enterprises.2606.7.4.2.3.1.4.44.2.949 = STRING: "C13"
SNMPv2-SMI::enterprises.2606.7.4.2.3.1.4.44.2.982 = STRING: "C13"
SNMPv2-SMI::enterprises.2606.7.4.2.3.1.4.44.2.1015 = STRING: "C13"
SNMPv2-SMI::enterprises.2606.7.4.2.3.1.4.44.2.1048 = STRING: "C13"
SNMPv2-SMI::enterprises.2606.7.4.2.3.1.4.44.2.1081 = STRING: "C19"
SNMPv2-SMI::enterprises.2606.7.4.2.3.1.4.44.2.1114 = STRING: "C19"
SNMPv2-SMI::enterprises.2606.7.4.2.4.1.5.5.2.162 = INTEGER: 11
SNMPv2-SMI::enterprises.2606.7.4.2.4.1.5.5.2.195 = INTEGER: 10
SNMPv2-SMI::enterprises.2606.7.4.2.4.1.5.5.2.228 = INTEGER: 11
SNMPv2-SMI::enterprises.2606.7.4.2.4.1.5.5.2.261 = INTEGER: 11
SNMPv2-SMI::enterprises.2606.7.4.2.4.1.5.5.2.294 = INTEGER: 11
SNMPv2-SMI::enterprises.2606.7.4.2.4.1.5.5.2.327 = INTEGER: 11
SNMPv2-SMI::enterprises.2606.7.4.2.4.1.5.5.2.360 = INTEGER: 11
SNMPv2-SMI::enterprises.2606.7.4.2.4.1.5.5.2.393 = INTEGER: 11
SNMPv2-SMI::enterprises.2606.7.4.2.4.1.5.5.2.426 = INTEGER: 11
SNMPv2-SMI::enterprises.2606.7.4.2.4.1.5.5.2.459 = INTEGER: 11
SNMPv2-SMI::enterprises.2606.7.4.2.4.1.5.5.2.492 = INTEGER: 11
SNMPv2-SMI::enterprises.2606.7.4.2.4.1.5.5.2.525 = INTEGER: 11
SNMPv2-SMI::enterprises.2606.7.4.2.4.1.5.5.2.558 = INTEGER: 11
SNMPv2-SMI::enterprises.2606.7.4.2.4.1.5.5.2.591 = INTEGER: 11
SNMPv2-SMI::enterprises.2606.7.4.2.4.1.5.5.2.624 = INTEGER: 11
SNMPv2-SMI::enterprises.2606.7.4.2.4.1.5.5.2.657 = INTEGER: 11
SNMPv2-SMI::enterprises.2606.7.4.2.4.1.5.5.2.690 = INTEGER: 11
SNMPv2-SMI::enterprises.2606.7.4.2.4.1.5.5.2.723 = INTEGER: 11
SNMPv2-SMI::enterprises.2606.7.4.2.4.1.5.5.2.756 = INTEGER: 11
SNMPv2-SMI::enterprises.2606.7.4.2.4.1.5.5.2.789 = INTEGER: 11
SNMPv2-SMI::enterprises.2606.7.4.2.4.1.5.5.2.822 = INTEGER: 11
SNMPv2-SMI::enterprises.2606.7.4.2.4.1.5.5.2.855 = INTEGER: 11
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We've discussed situations like this and in order to support them we'd have to implement major database changes to allow you to tie specific OID to a port and we haven't had the time to do that. This would apply to switches as well that have the port numbers all jumbled around. |
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Just because I am curious, would this be something for a paid modification? |
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It could be, we'd need to talk about it. The modifications needed are extensive. We need to expand the ports table to include a port specific OID, then build out some type of interface to allow you to modify those in a sane manner. We would also have to account for the current model going in sequence and populate the new data off of that, which isn't a big deal but it's a consideration. Finally we would have to modify the functions that are doing the scanning so that we would poll the device and cache the results and then pull out the pieces we care about from that cache and not do a bunch of one off calls to the devices. |
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I will talk to my colleagues and bosses, if this is something we want. |
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on outlet count = control your oid with snmpwalk or snmpget, result number of outlet (24)
on outlet state oid = 1.3.6.1.4.1.3808.1.1.6.6.1.4.1.5 your picture snmpwalk is ok
on template management > edit device template add 1 on outlet state (on)
on edit configuration >reporting Switches = OptOut
Go and joy