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A hard disk drive error is shown on the NAS. What should I do?
Posted by Daniel Orme on 03 January 2012 02:35 PM

Check if the following logs are shown:

  1. The message “disk drive x failed or is unplugged” is shown on “System Administration” > “System Logs” (requires admin access to the web administration page of the NAS). 
  2. The message “disk drive x failed or is unplugged” is shown on the LCD panel (if available).
  3. A disk error message is shown on “Storage Manager” > “Disks”, for example, “No Disk” or "Error".

Solution:

  • RAID 1, RAID 5, RAID 6: Replace the failed hard disk drive(s) with new one(s). You can perform the replacement by hot-swap. The NAS will perform RAID rebuilding. If RAID rebuilding is successful, the NAS will run properly again and the RAID data protection will be active.
  • RAID 10: If only one hard drive fails or two non-adjacent hard drives fail, replace the failed hard disk drive(s) with new one(s). You can perform the replacement by hot-swap. The NAS will perform RAID rebuilding. If RAID rebuilding is successful, the NAS will run properly again and the RAID data protection will be active. If two adjacent hard drives fail in a RAID 10 volume, the data cannot be recovered anymore. Please replace the hard drives and create a new disk volume with the new hard drives. 

    Note:
    It is recommended to replace the failed hard disk drives with new ones of the same brand and same modelThe RAID configuration cannot be rebuilt if the number of failed hard drives has exceeded the maximum limit. The disk data will be lost in such case.  
  • Single disk volume, JBOD, RAID 0: Turn off the NAS; replace the damaged hard disk drive(s) and then restart the NAS. Upon successful system startup, login to the NAS as an administrator. Go to “Disk Management” > “Volume Management” to configure the disk volume. The newly installed hard disk drive(s) will be formatted and all the disk data will be cleared. 

    Note: The data on the damaged hard disk drive(s) cannot be recovered.  

Replacing the failed hard drive: 

  1. Take out the disk tray.
  2. Remove the hard disk drive from the disk tray. Check if the hard disk drive is damaged. (Unplug the possible damaged hard disk drive and insert it to another NAS or machine (if any) to check if the hard disk drive can be read.)
  3. Replace the damaged hard disk drive with a new one.

Disk checking after replacing the failed hard disk drive: 

  1. Make sure no disk error message is shown on the LCD panel (if available).
  2. Login to the NAS Web Management as an administrator.
  3. Check the disk status in Storage Manager.
  4. If the disk volume is configured as RAID 1/5/6, the NAS will rebuild the RAID configuration upon successful replacement. Make sure the NAS works properly and no errors are shown after RAID rebuilding.
  5. If the RAID rebuild does not start automatically, you can try selecting Action > Set as Enclosure Spare from the Disks page in the Storage Manager.

 

Applied Models: All NAS Series

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Comments (2)
Macuz
03 May 2012 05:28 PM
Pefrcet answer! That really gets to the heart of it!
Kenji
02 December 2012 08:01 PM
Please ignore the earlier comment.

Currently i am using TS-469PRO with (WD RED 20EFRX x 4units )with RAID 5.
Total capacity 6TB.

Question :
1. Any advice if one of my hardisk failure in future ,can i replace the faulty hardisk with another model hardisk instead of WD RED 20EFRX ?

2. Any advice if one of my haridsk failure in future ,can i replace the faulty hardisk with another higher capacity hardisk like 3TB and 4 TB ?

Thank you in advance.