I started replacing drives (my pool is called “Top”), i currently have RAID6 and want more capacity. I inserted a new disk (6TB) , used “btrfs replace start” all went well and it finished. i powered down, removed “old” (4tb) disk. turned on. all is good
I did the same thing a second time. also all went perfectly.
On the third disk, the replace didnt seem to finish successfully. it said it was cancelled after a few hours.
I powered down, removed the “old” disk, powered back up. it looks like its all running… but the UI shows there as being no data.
btrfs fi show says that there is 72TB in use (which is the amount I would expect)
brfs fi df /mnt2/Top shows “Data, Single: 3GB” which is NOT what i want to see!
Accessing my two shares over the network - they both appear totally empty
accessing mnt2/Top/TV then doing ls, also shows no files in the shares
I can boot rockstor fine with EITHER the 4 or 6 TB disk inserted, and it seems pretty happy - but still btrfs fi show says 72TB, and the UI shows no data, and i cant see any files.
if i put both drives in at once btrfs fi show says there is a mismatch in the IDs
Advice on how to proceed please?
I’m not sure whether to try a balance - on the basis that some data may be missing? or a scrub? whether to put the both 4 and 6Tb drives in and try “btrfs replace resume” on them?
or simply remove both the 4 and 6TB drives on the basis that i have RAID6 and it should be able to start without either of them and repair itself from there?
Thanks in advance!
I’ve done some follow up, and i think the reasons that i see the shares as empty is because “top” isn’t mounted - or at least isnt mounted correctly?
/mnt2/Top: not mounted
mount /dev/sdl /mnt2/Top
mount: wrong fs type, bad option, bad superblock on /dev/sdl, missing codepage or helper program