I'm running appdata in a cache pool, I have 1x 120GB and 1 x 256GB SSDs. I've had them in RAID1, but as that only gives me 120GB of space and try as I might to slim it down, my appdata + docker.img is now pushing 115GB.
I've used CA appdata backup to copy everything into the main array, and I'm keeping a copy backed up on my PC too, so I'm not bothered about losing redundancy for now until I can afford a new SSD.
I'm trying to change my RAID1 cache pool to RAID0 which should give me 240GB available with increased speed over BTRFS 'single' mode. However I don't seem to be able to switch to either, having tried both and got the same error.
I've tried running this and hitting balance, it initially starts balancing but within a few seconds, the first time I hit refresh, it has stopped and changed back to 'No balance found on /mnt/cache'
-dconvert=raid0 -mconvert=raid1
I've tried running the code below as an alternative but the same thing happens. Running it without -mconvert makes no difference either. Filesytem attached.
-dconvert=single -mconvert=raid1
Label: none uuid: redacted
Total devices 2 FS bytes used 108.85GiB
devid 1 size 111.79GiB used 111.79GiB path /dev/sdc1
devid 2 size 238.47GiB used 111.79GiB path /dev/sdh1
Data, RAID1: total=110.76GiB, used=108.49GiB
System, RAID1: total=32.00MiB, used=16.00KiB
Metadata, RAID1: total=1.00GiB, used=368.38MiB
GlobalReserve, single: total=121.42MiB, used=0.00B
No balance found on '/mnt/cache'