04-29-2010 10:57 AM - edited 03-01-2019 09:39 AM
ok
i have 5 usc machines and doing the bios updates and CIMC updates on 4 machine no issues . for some reason on the last machine it waned to be a pain .. i did the bios update just like all the other machines that are working and online .. and then rebooted after that was complete i went into the CIMC console web page of the system ( . like the other ones . went into the firmware management page . told the system to update the firmware . it took just the same amount of time as the other 4 machines . i watched it and it said complete with no issues .. .. so i told it to activate the new firmware that it downloaded to the system . and now it will not respond over IP anymore . not sure where to go and what to do next . do i need to call tech support and request a new machines ? .. is it dead ...
i have powered off the server . rebooted .... and then booting up if does show that the CIMC does have an ipaddress on boot up . so i assume that it is working . i try and ping it from both my laptop and desktop . ( one wired and one wireless on different segments and they both respond but to no avail it still does not respond to http access ..
anyone have any ideas how to get it back online
thanks
ryan
02-28-2012 09:51 AM
Yes, that's right. I'm SSH'd to the ESXi address. I can't SSH to the CIMC
address, I don't get any error or anything. It seems like it connects but
it just hangs there, I never see any login prompts or anything for that
matter.
Do you think a re-boot is in order?
screen shot of my attempt to SSH to CIMC:
(Embedded image moved to file: pic23281.gif)
Josh Gertig
Voice Communications Analyst - Team Lead
National Rural Utilities Cooperative Finance Corporation
(703) 467-1695 (direct)
(571) 455-9359 (cell)
(703) 467-8976 (fax)
02-28-2012 09:53 AM
Yes, so that pretty much matches the behaviour of the bug I mentioned below.
A chassis power re-cycle would be required as a workaround to this issue.
./Abhinav
02-28-2012 10:05 AM
Will do this weekend, thanks for your help.
Josh Gertig
Voice Communications Analyst - Team Lead
National Rural Utilities Cooperative Finance Corporation
(703) 467-1695 (direct)
(571) 455-9359 (cell)
06-24-2011 01:58 PM
Hello
I have the same issue - the CIMC web interface on one UCS200 is accessible via https, but the second is not. I can ping it, but cannot access the web interface. Any ideas? Maybe the OP could post his solution?
Thanks!
02-28-2012 08:07 AM
We are seeing the same issue on a UCS C210 M2 (1.3(2d)). Last week everything was fine, this week I can't SSH or web to either UCS box. No significant changes were performed on either UCS. I can ping and even open a command prompt and telnet to both boxes on 443 and it connects, so I don't think any firewall related issue has been introduced (our network team also assures us there is no fw element between my PC and the UCS).
Is there a way to restart webservice from the ESXi client or from SSH to the ESXi address (I can SSH to the ESXi address, but it's all linux ). Thanks!
02-28-2012 09:15 AM
We do have a known bug around the CIMC not being accessible.:
CSCtn06772 CIMC - does not respond - cannot access via SSH / HTTP / HTTPS
Symptom:
Cannot access CIMC via SSH / HTTP / HTTPS / Serial over LAN
Conditions:
If system can be accessed via CIMC Serial Console , then system is NOT running into this defect.
Workaround:
Power cycle chassis
./Abhinav
03-01-2012 11:31 AM
Hi abbharga,
In reference to your note below "If system can be accessed via CIMC Serial
Console , then system is NOT running into this defect"...
I finally found the console cable for our UCS, the one that plugs into the
front with the DB9 Serial, VGA and two USB ports. But when I connect to
that, I just get the ESXi interface, no CIMC. Is there some other way to
console to CIMC?
Thanks, you have been very helpful!
Josh
Josh Gertig
Voice Communications Analyst - Team Lead
National Rural Utilities Cooperative Finance Corporation
(703) 467-1695 (direct)
(571) 455-9359 (cell)
(703) 467-8976 (fax)
02-28-2012 03:55 PM
yep Powercycling is how I have fixed this in the past
02-28-2012 08:05 PM
Hi Robert,
This fix is avaiable in the current 1.4.x firmware version, post upgrade to the firmware you should not be facing this issue again.
Thanks!
./Abhinav
08-13-2012 11:40 AM
Abhinav,
Do you know this for a fact?
Based on another thread and all the information I can find on Cisco's website on the release notes for CIMC... this bug is NOT resolved. At least not the bug we are experiencing (CSCtn06772)
08-13-2012 11:48 AM
Arrrghhh3,
Just curious, what are you experiencing. We upgraded to 1.4(3)c, which was the latest at the time. It didn't resolve the issue but made it better I would say.
Only one of two UCS servers was affected in the first place. That same server continues to have an issue, where the web interface goes down, but the difference is that we do not loose SSH (CLI) access. So, if needed, we can SSH to the affected server, and restart http (set enabled no ; set enabled yes) and we get the webpage for 10 minutes or so, then it goes out again.
At Cisco Live I spoke to some UCS folks who were familuar with the bug, but had never heard of our symptoms post upgrade. So I was curious if you might be having something similar.
08-13-2012 11:58 AM
Joshua,
Thanks for your post. My issue is a bit different from yours - our CIMC is completely unresponsive (except for ICMP). So for whatever reason we can ping it, we can NMAP the IP and it shows port 22, 80, & 443 are all open. One engineer waited for a good 5 minutes, and evidently part of the CIMC web interface loads... but never provides a login prompt. SSH never provides a login prompt either - but all of these ports I can connect to with telnet - so they are open and there's no network issues. All CIMC's are running 1.4(2).
It seems like the only option is to power down all the guest OSes, and then power down the ESXi host. Unplug all power plugs (probably for ~30 sec) then plug it back in and power everything back on.
This is the "workaround" for the bug, but I would prefer an actual fix. Based on the thread I linked to, it appears there is one in the works. Only one of our CIMC servers experienced this issue so far, but I don't want to take a chance and have this happen again. This is supposed to be an out-of-band management interface - really simple, something that never fails. With these types of failures, I feel like I need some sort of out-of-band management for the out-of-band management interface...
01-03-2013 10:05 AM
We also faced a CIMC problem when running on fimrware 1.4(1)..
Thanks to "Arrrghhh3" suggestion of unplugging the chassis and keeping it unplugged for about a minute or so, solved our problem. Very strange.
We also had a great amount of noice coming out of the chassis before we did this unplugging the power. After replugging, the noise was much less as well..
We were having issues with logging into CIMC GUI and we were not getting any response when we were hittin F8 during boot. We were seeing CIMC IP configuration error messages during the boot process.
08-13-2015 08:28 PM
I had a similar issue. Unable to access using http while I am able to ssh into it.
The issue was fixed by following the steps below.
UCSMGMT*# show http detail
HTTP Settings:
HTTP Port: 80
HTTPS Port: 443
Timeout: 1800
Max Sessions: 4
Active Sessions: 0
Enabled: yes
HTTP Redirected: yes
UCSMGMT# scope http
UCSMGMT /http # set enabled no
Warning: setting "enabled" to "no" will disconnect all
existing http connections and will disable login via WebUI.
UCSMGMT /http *# commit
UCSMGMT /http # exit
UCSMGMT# show http detail
HTTP Settings:
HTTP Port: 80
HTTPS Port: 443
Timeout: 1800
Max Sessions: 4
Active Sessions: 0
Enabled: no
HTTP Redirected: yes
UCSMGMT# scope http
UCSMGMT /http # set enabled yes
UCSMGMT /http *# commit
UCSMGMT /http # exit
UCSMGMT# show http detail
HTTP Settings:
HTTP Port: 80
HTTPS Port: 443
Timeout: 1800
Max Sessions: 4
Active Sessions: 0
Enabled: yes
HTTP Redirected: yes
UCSMGMT#
12-22-2016 06:51 AM
Reboot the CIMC is what solved my issue.
#scope cimc
#reboot
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