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Question 66/97
You have a mounted mirrored btrfs file system in RAID-1 on /btrfs:
# btrfs filesystem show
Label: 'Btrfs' uuid: 7bfe3239-47ee-442b-b9f8-49f88b6b1be4
Total devices 2 FS bytes used 250.46MB
devid 2 size 4.88GB used 1.54GB path /dev/sdd
devid 1 size 4.88GB used 1.54GB path /dev/sdc
You found an error on one device:
# btrfs scrub start -B -d -r /btrfs
scrub device /dev/sdc (id 1) done
scrub started at Wed Aug 21 15:33:05 2013 and finished after 6 seconds
total bytes scrubbed: 250.34MB with 0 errors
scrub device /dev/sdd (id2) done
scrub started at Wed Aug 21 15:33:05 2013 and finished after 6 seconds
total bytes scrubbed: 250.39MB with 26 errors
error details: read=13 csum=13
corrected errors: 13, uncorrectable errors: 0, unverified errors: 0
Which statements repairs the corrupted blocks?
# btrfs filesystem show
Label: 'Btrfs' uuid: 7bfe3239-47ee-442b-b9f8-49f88b6b1be4
Total devices 2 FS bytes used 250.46MB
devid 2 size 4.88GB used 1.54GB path /dev/sdd
devid 1 size 4.88GB used 1.54GB path /dev/sdc
You found an error on one device:
# btrfs scrub start -B -d -r /btrfs
scrub device /dev/sdc (id 1) done
scrub started at Wed Aug 21 15:33:05 2013 and finished after 6 seconds
total bytes scrubbed: 250.34MB with 0 errors
scrub device /dev/sdd (id2) done
scrub started at Wed Aug 21 15:33:05 2013 and finished after 6 seconds
total bytes scrubbed: 250.39MB with 26 errors
error details: read=13 csum=13
corrected errors: 13, uncorrectable errors: 0, unverified errors: 0
Which statements repairs the corrupted blocks?
