TS 210 RAID 1 - trying to replace disk

Hi everyone, I have this old model but thank God it’s still working fine, so I upgrade the disks once in a while with bigger ones.
But this time I have some problem, I have RAID 1 with two disks mirroring, I replace only one of the disks, after I turn the NAS on it does not rebuilt it on the new one.
After seeing this video I selected “migrate”, but once again not much happens.
In “Storage manager” both disks say “ready”. In “Disk SMART” the new disk (2) says “Disk does not exist”.
The red light is flashing on the status. Am I doing something wrong? Thanks in advance, and very sorry if this has been explained before - I tried searching but did not find something more specific.

I understand posting this might help:

Personalities : [raid1] [linear] [raid0] [raid6] [raid5] [raid4]
md0 : active raid1 sda3[3]
3905449556 blocks super 1.0 [2/1] [U_]

md2 : active raid1 sdb2[2] sda2[0]
530128 blocks super 1.0 [2/2] [UU]

md13 : active raid1 sdb4[1] sda4[0]
458880 blocks [2/2] [UU]
bitmap: 1/57 pages [4KB], 4KB chunk

md9 : active raid1 sda1[0] sdb1[1]
530048 blocks [2/2] [UU]
bitmap: 1/65 pages [4KB], 4KB chunk

WD80EFPX is the new one
WD60EFRX is the one that stays

I did “clean” with diskpart, put the disk back in the TS210 - two long beeps, the red status keeps blinking and I don’t see any change, no notification besides “disk 2 unplugged” from when I removed it. Both in volume management and raid management both disks are “ready”, in disk smart the new disk “does not exist”.
Am I doing something wrong? I remember the rebuilding process was showing up as notification and also in storage management but I see nothing now.


Look like the drive config is now corrupted, open a ticket with QNAP

Make sure you have backups (as you never acknowledge your backup situation on the old forum)

Which drive is corrupted?
How do I open a ticket?
How long am I going to have to wait for someone to take care of this ticket?
It is an old model - are you sure there is support for it?
I was hoping to get help from experience, not from a ticket but if that is how it should be done, ok…

Not the disk, the config of the disks. These ancient CAT1 units are a bit tricky in this regard
You open a ticket here
https://service.qnap.com/en-us/user/create-ticket

dolbyman could you please clarify my questions about the tickets if you can
Am I supposed to give access to my data to someone I don’t know?
Isn’t there something I can do myself?

I don’t know how your ticket would be handled

I asked repeatedly for your backup status … if you had backups you can just kill the NAS and start from fresh and restore the data.

Please elaborate - what is “kill the NAS”?
If I can restore the data why do I need backups?

Killing the NAS would be erase both disks and start fresh and then restore the data.
Backup are ALWAYS needed as anything could go wrong at anytime … I could fill Olympic size swimming pools with the tears of people that lost all their files because they had no backups.

So by restoring the data you mean copying it from any other backups back to the NAS?
If I erase both disks do I lose my settings regarding access, folders, etc?

Yes, not sure what you mean by ‘other’ backups*, but you would lose your NAS settings, there is a config backup but it could bring back the current problem back as well.

*I have heard many times that people keep all their files on a NAS and call it a backup, it’s only a backup if the NAS is a COPY of your files, if the NAS is the only place where these files are kept, the NAS is NOT a backup!

Ok before killing and wiping and losing all settings and probably days of my time to set it back up can I do anything else?

Just to clarify any possible scenarios:
I had Disk 1 and Disk 2 mirroring
Disk 1 was 4TB, Disk 2 is 6TB, the new Disk 3 is 8TB
I removed Disk 1 as it was the smallest and replaced it with Disk 3

What if I put Disk 1 back instead of Disk 2 - could this solve the issue?
Or anything else I could do?

I thought your original scenario was a planed capacity upgrade.
You announced the drive to swap (sadly has to be done on these old units), swapped the disk cold and it did not start a rebuild of md0 (md9 and md13 were rebuild)

Yes, correct, but there is an issue as the rebuilding does not happen. If I switch the old disks is there a chance for the rebuilding with the new drive to succeed?

As the old drive was not damaged, you can try that … yes

Things are getting worse somehow. Now I can not log in to the QNAP using my credentials from Windows Explorer. It is not accessible also via its web interface - “refused to connect”. But it has kept its IP. Any ideas what is going on? No red lights either…

What I need at this point is to somehow get access as it appears some of the files have not been backed up elsewhere (I know, I know…) Since both old disks did not malfunction - how can I read them (if I can’t log in that is)?

With these old units a simple Windows ext reader can read your disks

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Thank you, dolbyman, with Diskinternals Linux reader I accessed one of the drives, the structure seems fine but if I save the files to a new location they don’t open. Am I doing something wrong?

Not sure what you mean by “they don’t open” are they 0 byte files ?

Some are 0 but those that are not zero, can not be read by the program.

In the mean time the QNAP web interface now loads this:

System Migration

Select and upload the firmware image file. Then click “Start” to upgrade.
Why is that? I don’t want to do that and I have not initiated it…

There is also a message in the Linux reader saying that RAID is damaged, recovery is possible. Can this help?