“Not my usual style post but some-one out there may appreciate a nod and a wink in the right direction.”
Here’s the usual health warning:-
In all cases please refer to the makers manual as NAS boxes have proprietary O/S that produce specific error messages. Ensure where possible that you have an IT expert on hand so you don’t mess-up and over-write your data. You will also need user names and password to the web access page.
Resolving NAS Hard Drive Problems.
NAS boxes O/S are usually savvi, I cant speak for them all but more than likely a troublesome NAS will flag up a hard disk drive error message or display a flashing light of some colour or another. A NAS with a failed hard drive will either be off air or responding slowly and will have by now a “sobriquet” your mother will not want to hear. If this is the case then:-
Check if the following error logs are shown.
error message: “disk drive x failed or is unplugged” is shown on “System Administration” > “System Logs”
error message: “disk drive x failed or is unplugged” is shown on the LCD panel (if available).
A disk error message is shown on “Disk Management” > “Volume Management”, for example, “no disk”.
The above messages are helpful but not really what you want to be reading and even more , not what you want to hear! particularly if the hard disk drive is making a racket.
NAS Faulty Hard Disk Drive Swap Out.
In most cases you will need to swap out the faulty drive to restore the NAS to a working or fully functional condition.
In all cases of Hard Disk Drive substitution. The replacement drive should preferably be an exact match in terms of brand , model, specification type and capacity. In all cases it MUST be of the same or greater capacity.
You will have scheduled and verified back-ups available to you and you are also advised to take a back-up prior to a swap-out.
NAS RAID 5 and RAID 6 Hard Drive Failure.
Be absolutely certain you have identified the physical failed hard drive slot, Turn off the NAS and replace the failed hard disk drive with a new one.
Turn on the NAS after installing the new hard disk drive. The NAS will then perform a RAID rebuild. If RAID rebuilding is successful, the NAS will run properly again and the RAID data protection will be active. This process will take a relatively long time so be prepared.
If this fails then power off and contact a data recovery company for a bit of advice and assistance.
NAS RAID 10 Configuration.
Again be absolutely certain you have identified the physical failed hard drive slot.
Turn off the NAS and replace the failed hard disk drive with new one. Turn on the NAS after installing the new hard disk drive. 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, you will need a specialist data recovery service.
For Single Hard Drive NAS volumes.
Turn off the NAS; replace the damaged hard disk drive(s) and then restart the NAS. Upon successful system start-up, login 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.
Retain your old Hard Disk Drive and send it to a data recovery service provider for evaluation.