[ClusterLabs] Antw: [EXT] Removing DRBD w/out Data Loss?

[Ulrich Windl]

Never tried this, but if you dd the unused DRBD device to a local block device,
wouldn't that work? You could also copy the contents file-wise, but both
methods require that DRBD is still operational. And very old fashioned: Backup
and Restore (maybe using tapes)

>>> Eric Robinson <eric.robinson at psmnv.com> schrieb am 08.09.2020 um 16:33 in
Nachricht
<MWHPR03MB260734B6D069FB80A33C3C3FFA290 at MWHPR03MB2607.namprd03.prod.outlook.com>

> I checked the DRBD manual for this, but didn't see an answer. We need to 
> convert a DRBD cluster node into standalone server and remove DRBD without 
> losing the data. Is that possible? I asked on the DRBD list but it didn't
get 
> much of a response.
> 
> Given:
> 
> The backing device is logical volume: /dev/vg1/lv1
> 
> The drbd volume is: drbd0
> 
> The filesystem is ext4 on /dev/drbd0
> 
> Since the filesystem is built on /dev/drbd0, not on /dev/vg1/lv1, if we 
> remove drbd from the stack, how do we get access the data?
> 
> ‑‑Eric
> 
> 
> 
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