Recovering Data from Synology NAs DS213J

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SATTV

1621 posts

Uber Geek

ID Verified

#275850 13-Sep-2020 19:16

On Thursday afternoon my NAS spat the dummy and my network shares stopped working, became painfully slow and the CPU is running at 100%

The two 3TB drives are showing as OK.

I put one of the drive into my computer and booted into ubuntu and it could not see the drives.

I then found some 1TB drives and put in the NAS and it is working perfectly.

I have then put the drive into a USB caddy and the NAS says it does not support that format.

I have put one of the 3TB drives back into the NAS and am able to copy stuff off the 3TB drive to a USB drive which is painfully slow.

At this rate it will takes weeks, the data itself is not hugely important but Nice to have, I would normally have a backup off all my data but I have been using that server for something else and Murphys law says something is going to go wrong now.

Any idea's on how to put the drive into a computer and recover the data at speed?

It appear that the synology OS has done a bad update as I was fine in the morning, works fine with a fresh install so all I can summise is an update gone bad.

Cheers

John

I know enough to be dangerous

agent86

80 posts

Master Geek

#2563328 13-Sep-2020 20:15

Did you have the two drives in RAID?
When the CPU was running at 100% did you see what processes were causing it and did you see any background tasks running?
Do you run any CPU intensive apps on the NAS like Plex Server?

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SATTV

1621 posts

Uber Geek

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#2563355 13-Sep-2020 21:23

agent86:

Did you have the two drives in RAID?
When the CPU was running at 100% did you see what processes were causing it and did you see any background tasks running?
Do you run any CPU intensive apps on the NAS like Plex Server?

I have the drives is RAID 1 but I cant see what process is causing it, it says something like user 87% system 13%

I have uninstalled all the apps and shut down what I can but still using 100%, I cant see what is actually causing it. From what I can tell you can not shut down a rogue process like you can with Windows.

I have also disabled all users other than the admin user and closed any open sessions.

John

I know enough to be dangerous

agent86

80 posts

Master Geek

#2563362 13-Sep-2020 21:48

Have you tried this?
https://www.synology.com/en-us/knowledgebase/DSM/tutorial/Storage/How_can_I_recover_data_from_my_DiskStation_using_a_PC
I have a QNAP NAS so I can't be sure if it'll work, but have you tried connecting via ssh and entering the "top" command to get the processes with the highest CPU usage?

SATTV

1621 posts

Uber Geek

ID Verified

#2563364 13-Sep-2020 21:51

agent86: Have you tried this?
https://www.synology.com/en-us/knowledgebase/DSM/tutorial/Storage/How_can_I_recover_data_from_my_DiskStation_using_a_PC
I have a QNAP NAS so I can't be sure if it'll work, but have you tried connecting via ssh and entering the "top" command to get the processes with the highest CPU usage?

Thanks,

I have not seen that one, the one I saw did not have the additional commands, I can now see why Ubuntu would not have seen it.

I will try tomorrow.

John

I know enough to be dangerous