Info
On an HPE ProLiant DL20 Gen10, Gen10 Plus or Gen11 server, when the Advance Host Controller Interface (AHCI) mode or Intel Virtual RAID on CPU (VROC) mode of the HPE Embedded Storage control is configured, the speed of fan reaches 31% (or above). If it is Dynamic Smart Array RAID of the HPE Embedded Storage control being configured, the fan speed remains between 6% and 8% for all three fans.
A sensor called "AHCI HD Max" that reports temperature readings of the drive in AHCI mode and controls the fan speed. This "AHCI HD Max" sensor controls fan speed when Agentless Management Service (iLO 5) is running.
Scope
Any HPE ProLiant DL20 Gen10, Gen10 Plus or Gen11 server when the Advance Host Controller Interface (AHCI) or Intel VROC mode of the HPE Embedded Storage control is configured.
Resolution
To avoid the high fan speed, install the Agentless Management Service which includes iLO 5. The "AHCI HD Max" sensor would be presenting, then reporting temperature readings of the drive and controlling the fan speed accordingly. The fan speed remains between 6% and 8% for all three fans from the concern of high fan speed (above 30%) once Agentless Management Service is installed.
Install the appropriate HPE Agentless Management Service (AMS) for each supported operating system, available at the
HPE Support Center
.
To verify if AMS is correctly installed, click
here
.
Document Version
Release Date
Details
5
August 1, 2024
Updated affected products, added the ProLiant DL20 Gen11 servers
4
August 25, 2023
Updated to add Intel Virtual RAID on CPU (VROC).
3
May 2, 2022
Updated affected products, added the ProLiant DL20 Gen10 servers.
2
March 30, 2022
Added Windows and VMware as affected Operating Systems.
1
February 8, 2022
Original Document Release.
