Hello,
I'd appreciate your recommendation on this:
I have three hdd with 3TB each. I intend to use them as raid5 eventually.
currently I use them like this:
# mount|grep sd
/dev/sda1 on /mnt/Datenplatte type ext4
/dev/sdb1 on /mnt/BTRFS/Video type btrfs
/dev/sdb1 on /mnt/BTRFS/rsnapshot type btrfs
#df -h
/dev/sda1 2,7T 1,3T 1,3T 51% /mnt/Datenplatte
/dev/sdb1 5,5T 5,4T 93G 99% /mnt/BTRFS/Video
/dev/sdb1 5,5T 5,4T 93G 99% /mnt/BTRFS/rsnapshot
Now, what surprises me, and here I lack memory- is that sdb appears
twice.. I think, I created a raid1, but how can I find out?
#/usr/local/smarthome# ~/btrfs/btrfs-progs/btrfs fi show /dev/sdb1
Label: none uuid: 989306aa-d291-4752-8477-0baf94f8c42f
Total devices 2 FS bytes used 2.68TB
devid 2 size 2.73TB used 2.73TB path /dev/sdc1
devid 1 size 2.73TB used 2.73TB path /dev/sdb1
Now, I wanted to convert it to raid0, because I lack space and
redundancy is not important for the Videos and the Backup, but this fails:
~/btrfs/btrfs-progs/btrfs fi balance start -dconvert=raid0 /mnt/BTRFS/
ERROR: error during balancing '/mnt/BTRFS/' - Inappropriate ioctl for device
dmesg does not help here.
Anyway: This gave me some time to think about this. In fact, as soon as
raid5 is stable, I want to have all three as a raid5. Will this be
possible with a balance command? If so: will this be possible as soon as
raid5 is stable, or will I have to wait longer?
What approach do you recommend?
Greetings,
Hendrik
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