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Go to SolutionDell FX2 CMC not responding in web browser
I have 3 Dell FX2 chassis. One of them in the CMC management web page was running terribly slow. I want to idrac to one of the server blades to watch a reboot for a vmware update. I also wanted to update the bios. The web gui was so unbearably slow that I canceled out and tried alternative browsers and computers. Chrome, Firefox, IE, 3 different machines, they all say that it timed out. I can ping it no problem.
I check the switches and I use arp to find the port its connected to. I disable and enable the ethernet port. Still nothing. Ping works but I can't access the web gui.
How can I remotely reset the CMC web gui? Will it eventually just restart itself? Is there some kind of built-in watchdog that will reset it? If not there should be.
Thanks for all the suggestions, I will note that.
It seems it started working by itself 15 minutes later. There must be a built in watchdog timer or something to reboot its web interface.
I'm in it today completing the bios updates as needed for my 4 ESXi server blades in this chassis. I'm also in our other FX2 chassis no problem.
DELL-Joey C
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Posted April 8th, 2021 00:00
Hi,
You can reset the CMC at the troubleshooting tab https://dell.to/2Q1iuUy. There is 2 buttons, 1 is reset, another would be reset to factory default. Use the reset to restart the CMC. Try that, and let us know the outcome.
DELL-Joey C
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DELL-Shine K
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Posted April 8th, 2021 03:00
Can you try SSH to CMC IP. If you able to login to CMC using SSH you can run racadm racreset in SSH to reset CMC
DELL-Marco B
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Posted April 8th, 2021 09:00
Hello,
let us know if after updates something will change.
Thanks
Marco
DELL- Marco B
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Posted April 11th, 2024 07:11
Hello, the tech support would need to see your logs.
and please get in touch with
Respectfully,
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DELL-Marco B
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Posted May 29th, 2025 14:57
Hello
yes, you can remove the CMC from the FX2 chassis without powering down or disconnecting the FC630 blades. The blades will continue to operate normally, as they are not directly dependent on the CMC for runtime operation. However, you will lose management capabilities (e.g., power control, monitoring, firmware updates) until the CMC is reinserted or replaced.
The CMC is hot-swappable. You can safely remove and reinsert it while the chassis and blades are powered on. Just ensure you wait a few seconds before reinserting or replacing it to allow the system to register the change.
If the CMC is unresponsive via both network and serial, try reseating it first. If that doesn’t help, consider replacing it with a known-good unit. Once reinserted, the new or reseated CMC should initialize and regain control of the chassis.
Thanks
DELL- Marco B
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