The speed of the fans on OptiX OSN 8800 is adjusted intelligently. The speed levels include high, medium, and low. The fan speed can be adjusted on the CLI. However, it is not recommended that the configurations be modified. The fan speed is intelligently adjusted by the software.
An OSN 8800 fan tray assembly can work in either of the following modes: Auto Speed Mode: The fan tray assemblies automatically regulate fan speeds, depending on the subrack temperature. Adjustable Speed Mode: You can manually adjust the fan speed. The speed of the fans on an OSN 8800 is adjusted intelligently. The speed levels include high, medium, and low. The fan speed can be adjusted on the CLI. However, it is not recommended that the configurations be modified. The fan speed is intelligently adjusted by the software.
Removing the fan board from the subrack will sharply increase the temperature inside the subrack, adversely affecting stable equipment running. Services may be affected and even equipment may be damaged.
You can take the following measures when loud fan noise is caused by overheated temperature of the disk:
1. Issue Description
Product and version information
? S2600
S5000 series
The application server runs Windows 2003.
After a faulty disk is replaced on the storage device, data on the hot spare disk cannot be replicated back and fan noise becomes louder. Check the replaced disk and find that the replaced disk has a temperature of 119°C.
2. Alarm Information
On the ISM menu, choose Event > Event Management. On the Faults tab of the displayed Event Management dialog box, an alarm Above upper major threshold is displayed.
3. Handling Process
Replace the disk.
Note:
The disk used to replace the faulty disk must be the same type of the member disk in a degraded RAID group, and the disk capacity must be greater than or equal to the minimum member disk capacity in the RAID group.
4. Root Cause
Remove the new disk. The fan noise is lowered.
Conclusion:
The loud fan noise is caused by overheated temperature of the disk.
5. Suggestions
None
If you have more questions, you can seek help from following ways:
