On Nov 18, 2014, at 11:22 AM, Craig Yoshioka crai...@gmail.com wrote:
I started experimenting with an 8 drive BTRFS RAID6, but rebalanced it a
while ago as RAID10. Recently though I’ve run into problems when trying to
replace a drive.
Nov 18 10:18:44 ganymede kernel: BTRFS warning (device sdk): dev_replace
cannot yet handle RAID5/RAID6
Even though df shows RAID10:
Data, RAID10: total=4.65TiB, used=4.62TiB
System, RAID10: total=64.00MiB, used=432.00KiB
Metadata, RAID10: total=34.00GiB, used=31.36GiB
GlobalReserve, single: total=512.00MiB, used=0.00B
Am I out of luck and need to copy everything off and start over?
Interesting, seems like a bug.
Anyway you should be able to do one of two things: ‘btrfs device add’ to add
new device, and ‘btrfs device delete’ the old device; OR
you can physically remove the old device, connect the new device, and then
‘btrfs device add’ new, and ‘btrfs device delete missing’ since you won’t be
able to designate the disconnected old device.
Chris Murphy--
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