Previously my RN102 was equipped with a 3TB and a 1TB disk, using 2 separate volumes. I removed the 1TB and placed a second 3TB disk, now my 3TB data is nicely mirrored.
I did expect however, that I could mount the 1TB as an external volume. That is not the case. Frontview informs me 'System: External storage device is connected but the filesystem is not recognized.'. sgdisk thinks the 1TB is empty.
How is the 1TB disk previously formatted and how can I mount it again, without loosing the data?
Using a previously internal disk as an external disk is not expected behaviour.
Mounting the volume on that external drive would actually involve quite a complicated procedure as you probably use the same md device name for a volume internally
Thanks for your reply. Would it be possible to eject one of the 3TB's and place the 1TB to move the data from it? Afterwards, place the 3TB and let it resync the RAID?
Or is it possible to mount the disk via USB in a Ubuntu VM on my macbook? Maybe that's easier 😉
You could try powering down, removing both drives (label order), put old drive back in, backup data, power down, remove old drive, put new drives back in.
If you want to use a VM, I would suggest you make sure it is running a recent kernel e.g. 3.14, and that you have installed a recent version of btrfs-progs
You could try powering down, removing both drives (label order), put old drive back in, backup data, power down, remove old drive, put new drives back in.
If you want to use a VM, I would suggest you make sure it is running a recent kernel e.g. 3.14, and that you have installed a recent version of btrfs-progs
