Single-disk array full: how to add a spare disk without losing data?

Asked Jun 01 '21 at 08:37

Active Jun 01 '21 at 08:37

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So I rent this server from Hetzner and it was labeled as 2x512gb nvme ssd. Indeed, the server contains two 512 gb nvme ssd but (my fault) I noticed only later that they were in some sort of software RAID.

I managed to remove a disk from the array and format it, so now /proc/mdstat reports:

md2 : active raid1 nvme1n1p3[1]
  465894720 blocks super 1.2 [1/1] [U]
  bitmap: 1/4 pages [4KB], 65536KB chunk

and df -h reports

/dev/nvme0n1p3  437G   73M  415G   1% /media/disk2

I'd like to expand nvme1n1p3 with nvme0n1p3 so i get the space in a single partition, but I cant loose the data on the mounted raid which is almost full. Is there a way to do that?

Ideally, I would simply destroy the RAID thing and go on with a normal LVM but i don't know how to do it without loosing all the data.

asked Jun 01 '21 at 08:37

Wyatt Gillette

There's nothing on that drive anyway, so there's nothing to lose. – Michael Hampton Jun 01 '21 at 11:26
why not mount the second drive on a specific path and use it as additional space? – djdomi Jun 01 '21 at 19:34
can you add the full display of `df -h` – EchoMike444 Jun 05 '21 at 12:35

Single-disk array full: how to add a spare disk without losing data?

0 Answers0