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Cisco Bug: CSCze95472 - Expand the allowable Geryon fan operational speed ranges

Last Modified

Apr 14, 2020

Products (37)

  • Cisco Firepower Management Center
  • Cisco FirePOWER Appliance 8120
  • Sourcefire Defense Center 1000 Chassis
  • Cisco FirePOWER Appliance 8260
  • Cisco FirePOWER Appliance 8360
  • Sourcefire 3D6500 Sensor
  • Cisco AMP 8150
  • Cisco FirePOWER Appliance 8130
  • Cisco FirePOWER Appliance 8140
  • Cisco FirePOWER Appliance 8390
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Known Affected Releases

4.10.3.9 5.2.0.7 5.3.0.3 5.4.0 6.0.0

Description (partial)

Symptom:
Premature low speed fan alerts are reported on the 3D7110, 3D7115, 3D7120, 3D7125 and AMP7150 systems even though the fan speeds are technically acceptable.  The low fan speeds are reported when the fans go below 7000 RPM but system analysis has shown that fan speeds as low as 6200 are acceptable and these low speed fan alerts cause unnecessary concern since the original levels were just configured to be too sensitive.

Conditions:
Older fans eventually slow down a little bit and fall below 7K RPM and this is a very acceptable fan speed.  Speeds are acceptable until the fans fall below 6200 RPM.
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Bug Details Include

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