Raid 5 no longer recognised

[bendelau]

Hi, I need so help please.

I had a TS412 configured in RAID5

I purchased a TS431P3 and placed the drives from the ts412 into the TS431 in the same order as the website said I could migrate the drives.

I booted up the TS431 and left it running for about 10 minutes. It didnt show up in Qfinder. I held down the power button for 3 seconds and let it shut down.

I then placed the drives back in the TS412. Once it booted up Qfinder said the ts412 need to be initialised and all date would be cleared. I did not proceed.

I logged in through SSH and checked the drives one at a time using:

HDD check command for 1.th HDD: mdadm -E /dev/sda3

HDD check command for 2.th HDD: mdadm -E /dev/sdb3

HDD check command for 3.th HDD: mdadm -E /dev/sdc3

HDD check command for 4.th HDD: mdadm -E /dev/sdd3

the drives showed array slots 3,5,1,4. I was expecting 0,1,2,3.

The raid data appeared correct, as did all the checksums.

At at the end: Chunk Size : 64K

Array Slot : 4 (failed, 1, failed, 2, 3, 0, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, failed, fail

Have I lost my data?

[dolbyman]

Why do people try these stunts with no backups?

If you inserted the drives in a cat2 device then you cannot go back to your old cat1 ..move the drives again and have more patience than 10 minutes...

[bendelau]

I honestly didn't realise moving the drives was going to alter anything on the drives. I thought I was simply putting them in a faster machine. Raid 5 was always my fall back - if ne drive fails, replace and rebuild.

Thank you for the reply. I'll give it a try now

[bendelau]

Thanks Dolby, it's shown up in Qfinder now, with the correct 'name'. Hovering over 'status' says - successfully completed migration.

I Qfinder I can access config, but cannot yet login, view details, or resource monitor. Hopefully is a patients thing again. I'll leave it running and check in the morning.

And yes, I'll load the 412 with drives and make backups.

Also. while I'm here, is there a reason QTS 5 doesn't show up under 'check for update'?

[dolbyman]

A RAID in itself is never a backup, you will lose the data is you accidentally delete data or your raid fails during rebuild (amongst other potential issues)

So if you get your data back..start making backups.

As this is (and will remain) a crippled legacy volume, accessing your data even upon migration failure shouldn't be too hard (plain linux md_raid)

[FSC830]

Why do people try these stunts with no backups?
...

Very simple answer: no risk - no fun!


Regards

... and imagine, how boring this forum will be, if someone wrotes "hi all, I did put my NAS under water, set fire on it and finally smashed it several times from 3rd floor downwards, now its not running any longer!??? But hey, I do have backups, so nothing to worry about..."
If someone finds sarcasm, please keep it.

(April fool)