Let's start with that getting the faulty fan replaced may be good to start with.
Then, I don't know why the behavior is different in 10.14 vs 10.5, but one explanation may be that engineering has seen devices permanently damaged with a failing fan (or a specific failing fan) and has remediated that in recent firmware; or it is to make clear there is something wrong with the switch. Or it's just something overseen in the development process.
If you are in contact with Aruba Support to get the fan replaced, they probably can answer or look up why the remaining fans are running at full speed.
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Herman Robers
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If you have urgent issues, always contact your Aruba partner, distributor, or Aruba TAC Support. Check
https://www.arubanetworks.com/support-services/contact-support/ for how to contact Aruba TAC. Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or Aruba Networks.
In case your problem is solved, please invest the time to post a follow-up with the information on how you solved it. Others can benefit from that.
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Original Message:
Sent: Jul 15, 2024 09:21 PM
From: ajorigenes17
Subject: 8325 SWITCH FAN IN MAX SPEED
We dont have an idea if its faulty already from 10.05 version since we noticed it that the fan is in max speed the next morning. I already downgrade it to 10.05 and the fan speed is now in a normal status .but still faulty fan still exist
may concern is in 10.14 firmware the speed status of other fans will automatically run in a max speed if it detects a faulty fan but in 10.05 it works normal even the faulty fan detected
Original Message:
Sent: Jul 15, 2024 12:57 PM
From: parnassus
Subject: 8325 SWITCH FAN IN MAX SPEED
Hi! how exactly you performed the AOS-CX upgrade from 10.05 to 10.14? was the fan faulty in origin (when the system was initially at 10.05)?