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I have a QNAP TS-251+ NAS server with two bays. This is for home use and cloud function with mobile applications, with full disk LUKS encryption system and 2 shared and encrypted folders, I know the passwords.

In bay number 1 I had a 18TB disk for data and in bay number 2 I had a 2TB disk used for NAS applications. Further investigation revealed a Raid 1. I did not have them configured in Raid, but searched the web there are many comments that say Qnap disks configured in single use are Raid 1 type.

Due to network connection problems I could not access the server by any way. I did a 3 minute reset to restore the network settings to default values, at which point the disks were in place. This did not solve the connection problem.

I tried another 10 minute reset to to factory defaults, at which point the disks were in. After the 10 minute reset, I was able to access the NAS.

I decided to do a hard reset with the 18TB disk out of the NAS. When all the configuration was reset, I connected it back to the NAS, but it did not recognize the disk 18TB configuration, only recognized the disk as new. I don't understand why.

I connected the disk to a docking station and connected it to a computer with a Linux Mint system, which was able to see all the partitions of the disk. That makes me think that everything is intact.

My question is: Is it possible to recover all the information from this disk? The disk hasn't been formatted, and is not currently in use to prevent data loss.

I don't have much knowledge of Linux.

AdminBee
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Bigces7
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  • Seems like QNAP uses LUKS, so recovery shouldn't be too hard, here is a guide. Everything not stated there should be solvable through this site/google. Good luck! – Panki Feb 06 '23 at 17:45
  • Hola Peregrino 69 I know that guide. I have to explain that the disk was internal and belonged to a Raid 1. I did not have them configured in Raid, but searched the web there are many comments that say: Qnap disks configured in single use a Raid 1 type. How can I use Linux to mount this Raid 1, decrypt and recover this data? I follow a post called: Mounting LVM Partition on RAID1 Disk from a bricked QNAP NAS. But In the end it doesn't mount, it doesn't ask me for a password. – Bigces7 Feb 07 '23 at 09:55
  • See this question – Panki Feb 07 '23 at 11:50
  • Thank you very much Panki. Unfortunately it didn't work for me. – Bigces7 Feb 07 '23 at 19:11

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The solution was the program Recovery Explorer Professional. It's a paid-for application, but has an unlimited Trial version with functional limitations described in the FAQ.

It has all kinds of recovery solutions, works very well with LUKS, RAID and eCryptFS systems. It recognizes several types of file systems. In the end I was able to recover my files.

Glorfindel
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Bigces7
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  • Welcome to the community :-) SE sites aren't discussion forums; issues aren't marked "Solved". Instead answers that resolve the issue are accepted, and the only one who can do that is the user asking. Answer being your own you must wait for 48 hours before accepting it. As you're new, I recommend taking the short Tour and checking the Asking- and Answering -sections in Help to learn how the site works. – Peregrino69 Feb 08 '23 at 17:46