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HELP - Restore from Single Disk

Backup and data protection discussion at its finest.

HELP - Restore from Single Disk

Postby ArminF » Fri Jan 31, 2020 7:27 pm

Hello ASUSTOR owners,

Had the following setup on my 6404
- 3 x 2 TB RAID 0
- 1 x 6 TB Single Disk ext4 formatted
Backup/Copy Job (internal backup) configured and running from RAID0 to Single ext4 formatted Disk.
All well, job was running fine and data was written die the single disk

Did restructure the NAS this morning.
Shutdown the NAS and took out the single disk
Made restore to factory and replaced the harddrives

- 1 x 515GB SSD
- 2 x 4 TB in RAID0

AND i really thought i could use the single disk where my backup job was copied each day to restore the data.
So i used a SATA/USB Adapter and wanted to copy the data back before placing the disk back to the NAS.

BUT... the DISK is shown as empty/ASMedia and i cannot see any data on the disk.
Used the usb connector and plugged into my macbook and it does not see the data on the disk as well.
I really thought/hoped that a single disk can be read by using an USB adapter and copy then the stuff back to the internal disks.

Disk Utility 2020-01-31 12-30-27.png
Disk Utility 2020-01-31 12-30-27.png (161.7 KiB) Viewed 1171 times


Does the NAS somehow write a different filesystem to disk even when its formatted as GUID/ext4?
Any tip or idea how i could get my data back?

I think when i plugged it back into the NAS it will initialise and empty the drive...

Thanks for your help!
cheers armin
ArminF
 
Posts: 5
Joined: Fri Jan 31, 2020 7:18 pm

Re: HELP - Restore from Single Disk

Postby ArminF » Fri Jan 31, 2020 8:30 pm

After more research i found this...
https://www.asustor.com/online/College_topic?topic=343

Poweroff NAS pull out disk and install them on new NAS. Which should be the same as factory reset.
Keep the order of the disks. So Disk 1 to Slot 1 and so on like on the "old".
Maybe ... i say maybe as i never tried it as long as you stay with Asustor ADM this could work but to be honest i am a bit afraid..

The single Disk was on Slot 4 and will be placed here again. So in theory it could work.
Someone tried this already?

thanks A
ArminF
 
Posts: 5
Joined: Fri Jan 31, 2020 7:18 pm

Re: HELP - Restore from Single Disk

Postby ArminF » Fri Jan 31, 2020 9:07 pm

Took all my patience and shutdown the NAS and plugged in the single drive into the same slot as it was before.
Powered on...
Disk is found in Disk manager but i am unable to mount it.

HomeServer 2020-01-31 14-08-04.png
HomeServer 2020-01-31 14-08-04.png (249.39 KiB) Viewed 1164 times


Any clue how to mount it?
thanks a
ArminF
 
Posts: 5
Joined: Fri Jan 31, 2020 7:18 pm

Re: HELP - Restore from Single Disk

Postby ArminF » Mon Feb 03, 2020 3:27 pm

Hello,
got some news as i opened a case with Asustor Support.

Here the details about how to use a single disk as backup and how to get data from an "inactive" one.

Single Disk - My Archive
https://www.asustor.com/en/online/Colle ... ?topic=255

Get data from disk
https://support.asustor.com/index.php?/ ... using-a-pc

Reason for the disk to be inactive or not mounted is that ADM skips the disk as the old ADM setup wrote special partitions to it.

"The cause is that you created a single disk with ADM installed.

Each ADM version installs on HDDs considers individual and independent. (raid technology limitation)

That is why the newly created ADM won't recognize the old one, especially there is an ADM version on it.

If you really need to swap the HDDs around you can use this one

https://www.asustor.com/en/online/Colle ... ?topic=255

My archive then allows you to use the same HDD on each different volume.

So at the moment what I can do is to mount this drive manually so you can recover data or

You can do it yourself this way

https://support.asustor.com/index.php?/ ... using-a-pc"
ArminF
 
Posts: 5
Joined: Fri Jan 31, 2020 7:18 pm

Re: HELP - Restore from Single Disk

Postby ArminF » Mon Feb 03, 2020 11:16 pm

Case solved!

Reply from Asustor Support helped me to get my data back.
I used an external usb/sata connector plugged the disk in after i installed mdadm and lvm2.

e voila! Data is shown and i do copy it back to the new disks now.

Afterwards i will use My Archive Option as this seems to be the better solution for single backup disks,

HAPPY !!!

Ubuntu Linux 2020-02-03 16-10-36.png
Ubuntu Linux 2020-02-03 16-10-36.png (680.38 KiB) Viewed 1122 times
ArminF
 
Posts: 5
Joined: Fri Jan 31, 2020 7:18 pm

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