February 13, 201610 yr I have an old btrfs formatted drive I was mounting myself (neither cache nor array). It was formatted in the early days of btrfs being available in unRAID. Running scrub says there are uncorrectable errors. I bought 2nd identical drive, and I tried to install both as a cache pool. That part worked, but the manual says that once you install the gui will give you the option to format. I guess since one of my drives was already btrfs, it isn't giving me that option. The "old stuff" (including errors) is still on the drive - which is showing up as the cache drive. How do I correct this? In particular, have there been btrfs updates (to the fs itself) that I should reformat for? Or is just deleting the files sufficient? Thanks in advance
February 13, 201610 yr Author Ok, I manually deleted the files from the cache (from windows), then a scrub ran quickly and found no errors. I then ran balance, as it had been saying I had a several hundred GB in "single" and only 2 GB in "raid1". Now it has the following in the web UI: Label: none uuid: a84b9278-e4b6-463b-b0bd-aa655dabce37 Total devices 2 FS bytes used 640.00KiB devid 1 size 465.76GiB used 2.03GiB path /dev/sdg1 devid 2 size 465.76GiB used 2.03GiB path /dev/sdd1 btrfs-progs v4.1.2 Data, RAID1: total=1.00GiB, used=512.00KiB System, RAID1: total=32.00MiB, used=16.00KiB Metadata, RAID1: total=1.00GiB, used=112.00KiB GlobalReserve, single: total=16.00MiB, used=0.00B Can someone confirm if this looks reasonable or not?
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