BTRFS-MAP-LOGICAL man page on Manjaro
btrfs-map-logical - map btrfs logical extent to physical extent
btrfs-map-logical [options] <device>
btrfs-map-logical can be used to find out what the physical offsets are
on the mirrors, the result is dumped into stdout in default.
Logical extent to map.
Copy of the extent to read(usually 1 or 2).
Output file to hold the extent.
Number of bytes to read.
btrfs-map-logical will return 0 if no error happened. If any problems
happened, 1 will be returned.
Written by Shilong Wang and Wenruo Qu.
Copyright © 2013 FUJITSU LIMITED. License GPLv2: GNU GPL version 2
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
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