Problem and solution of loud fan noise due to overheated temperature of the disk

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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

Other related questions:
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The noise is loud when the fan speed is high to achieve desired heat dissipation.

Whether the loud noise of fans on OptiX OSN 8800 is normal
The noise can be loud when the fan speed is high to achieve desired heat dissipation.

Whether the fan noise of the USG6330 can be reduced
You can run the test fan-speed fan-id fan-speed command to adjust the fan speed of the USG6330. Manual adjustment is not recommended.

Problem and solution when disk isolation occurs
You can perform the following operations when disk isolation occurs: The following causes may result in disk isolation: Bit error Reinserting disks repeatedly Disk power connection problem 1. Bit error Check the bit error of back-end SAS disks. Search keywords err inc and disable disk phy in the SES log. Note: phy:9 phymon***disable disk phy in the log shows that disk phy 9 is isolated. That is, the disk in slot 9 is isolated (phy0 to phy23 corresponds to disk 0 to 23). Troubleshooting 1. Before removing a faulty disk, collect S.M.A.R.T. information. 2. If conditions permit, insert the isolated disk to other slots to check whether isolation is caused by the disk or the slot. If isolation is caused by the disk, apply for disk replacement. If isolation is caused by the slot, check whether the slot has any foreign objects. Check the bit error on Fibre Channel disks. Search keyword lcv that is Fibre Channel bit errors in the SES log. If HD 0 and lcv ffff are displayed, the information indicates that a large quantity of bit errors are produced in slot 0 and cause disk isolation. The back-end Fibre Channel bit errors can spread from the port to the disk. If a Fibre Channel disk is isolated, check whether bit errors occur on the port by using the following methods: Check on the ISM. Enter fc allinfo in MML mode. Note: If any information displayed is not 0, bit errors exist. If bit errors are detected on the port, verify whether bit error are generated in the link. For details about how to verify, see the troubleshooting cases for a single link failure of the Fibre Channel enclosure disk caused by bit errors. Troubleshooting: If only one disk fails, verify the failure by using the above method. If a link fails, replace the optical module and optical cables and verify the failure. If a link does not fail, use the same method as one carried out on the SAS disk. If multiple disks are faulty, refer to the troubleshooting cases for a single link failure of the Fibre Channel enclosure disk caused by bit errors. 2. Reinserting disks repeatedly Note: A drive can isolate the disk from other ones if intermittent disconnections occur on the disk. Reinserting disks repeatedly may lead to disk isolation. Verify whether the disk is reinserted many times within a short period. If such a case exists, reinserting disk may result in disk isolation. Troubleshooting: Reinsert the disk. 3. Disk power connection problem Note: If the disk enclosure is affected by violent shaking, disk power may be insecurely connected and the disk is isolated. Troubleshooting: Contact R&D engineers for further analysis.

Fans of WLAN devices make a big noise
Fans must operate normally to ensure normal operation of WLAN devices. Inefficient heat dissipation increases device temperature and may damage device hardware. A big noise may be generated when fans run at the full speed for dissipating heat of WLAN devices. Run the display temperature command to check the temperature of a WLAN device. If the device temperature is too high, lower the temperature first and then run the display fan command to check whether the fan still works at the full speed.

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