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[zewolf]

Hello everyone.

I need help for my NAS 320LW.

I have made quick SMART test on my both disk, one successed and one failed.
I'm little worried and I need your knowledge.
I've tried to see the reports, but I can read only the Successed one and not the other.
Please could you help me to know id I have to replace the failed one and how to replace it.

Thanks in advance for your help.

[FurryNutz]

What format did you use when you installed the drives? Standard or RAID#?
Remove one drive and run the test. if it's good, then you'll know which drive you need to change out.

[zewolf]

Hello,

Thanks for your answer.

I use format RAID 1.

It's not very clear for me, can I remove one disk to do some test and replace it in the NAS without problem?

Thanks

[FurryNutz]

As long as you don't change the placement of where the drives are physically installed. Just keep the same placement.

[ivan]

I assume you logged into the NAS webUI, went to  'Management' --> 'Disk Management' --> 'S.M.A.R.T. Test' and ran the quick smart test and it shows 'failed' for one of the disks and you now want to know what actually failed.  I also assume the NAS is not reporting a degraded array.

There are quite a number of SMART attributes but only a small number of them are critical and indicate the disk should or must be replaced.

Unfortunately, the NAS does not give a full report, just a pass or fail.

To get a full report you need a few things and some preparation.
1) download the disk manufacturer's disk tools (get a bootable cd iso if possible, especially if your computer is using windows and burn it to a CD)
2) get a SATA USB adapter/caddy (must be able to power 3.5 inch drives)

Now you can power off your NAS, extract the driver you want to test (indicated by the webUI).  Attach or insert it in the adapter/caddy.

Now you boot from the CD and attach the USB mounted disk.  Once you have indicated the disk to the program just follow the instructions on screen .

If the disk tests end in a satisfactory manner you can replace the drive in the slot you took it from in the NAS box and power up the NAS.
 

 

[zewolf]

Hello,

I've tried to launch test from bootable usb, the seagate disk is connected to the pc by usb, but Seatools seems to be not able to see the.
I've tried with both disk and it's the same.
I've tried from windows with the seatools app and it's the same.
In each case I only see the HDD of my laptop.
And I've tried from my other laptop too.

Please could you help me on this issue?

[FurryNutz]

Some diagnostic apps don't support testing via USB connections, you may need to connect directly to a desktop PC.

Hope Ivan can help on this more...

[ivan]

A couple of points.
1) the SATA/USB adapter/caddy MUST be one with an external power supply.  One with that has just USB connection/s WILL NOT WORK (they are designed for use with 2.5 inch notebook/laptop drives.
2) have you tried burning the ISO to cd and booting from that?
3) when you removed the second drive did you note which slot it came from?  If you didn't then you have a 50/50 chance of losing your data (the software RAID requires the drives to be in the slots they were in when the RAID array was setup.

As a last resort you need access to a PC that has SATA drives and connect the suspect drive to it (you will require a SATA data cable and possibly a molex to SATA power cable (a lot of modern PCs have just enough power cables for the designed number of drives).

Either boot the computer from the bootable CD or, if you must, allow it to boot windows but in that case DO NOT let windows do anything to the drive because that is the quickest way of losing data on the drive.

Run the diagnostics tests and the SMART test on the drive (make sure you select the correct drive).  With those results to hand you can then decide if you need to replace the drive.
 

[zewolf]

The SATA adapter is one with power supply. But it's maybe 12 years old.
I've tried with bootable CD and USB same results.
I note directly theirs positions on each HDD.
I've also asked question at the DLink support and they told me to swap position of the disks.
The NAS is still working but the test results are the same, just with swap positions.
I'm trying to find friend with real PC and not a laptop to connect directly the disk to the motherboard.
I will see.

[ivan]

The fact the NAS is still working tends to say that you do not need to worry, just be concerned and make sure you have a backup of your data.

One of our NAS boxes threw out a SMART test fail ... 6 years ago and it is still working without any other problems (yes we did test the disk and it has a potential critical failure sometime in 03/2085.