Synology

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Synology

This is a place for all topics regarding Synology hard- and software - especially (but not limited to) their NAS devices.

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Can I restore my files from half my 2-drive RAID? (lemmy.ca)

submitted 1 year ago by [email protected] to c/[email protected]

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I have a DS220+ with 2x 6TB drives in RAID. I used some bad RAM, and now the volume is read-only and won't restore. I was resigned to backup the data, create a new volume, and restore the data, but I had an idea -- will this work?: Basically, I use one of the two drives as its own backup. I pull out one drive and save it, I wipe the other drive and create a new volume, then pop in the drive with files from the old volume, and copy the files over, and then recreate the RAID. Should that work? Any obstacles I should watch for?

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[–] [email protected] 7 points 1 year ago (2 children)

Is it RAID0, or RAID1? If it's the former, you're fucked. No problem if RAID1.

[–] [email protected] 5 points 1 year ago

Yeah that’s the really important detail here for sure

[–] [email protected] 1 points 1 year ago (2 children)

I'm like 99% sure it's RAID1, but it might be SHR. I'm sure it's not RAID0.

[–] [email protected] 3 points 1 year ago (1 children)

Quick way to tell: when it was functioning, did it appear as a 6, or a 12 TB drive? If it appeared as 12, that means you were using RAID 0.

[–] [email protected] 1 points 1 year ago

It's RAID1

[–] [email protected] 2 points 1 year ago (1 children)

Did you have 6tb or 12tb storage available?

[–] [email protected] 1 points 1 year ago (1 children)

6TB

[–] [email protected] 1 points 1 year ago

Barring some messed up partitions, you should have been using RAID 1.