2021-10-26 22:45:24 +00:00
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btrfs-map-logical(8)
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====================
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SYNOPSIS
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--------
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**btrfs-map-logical** <options> <device>
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DESCRIPTION
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-----------
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**btrfs-map-logical** can be used to find out what the physical offsets are
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on the mirrors, the result is dumped to stdout by default.
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Mainly used for debug purpose.
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OPTIONS
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-------
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-l|--logical <logical_num>
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Logical extent to map.
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-c|--copy <copy>
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Copy of the extent to read(usually 1 or 2).
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-o|--output <filename>
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Output file to hold the extent.
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-b|--bytes <bytes>
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Number of bytes to read.
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EXIT STATUS
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-----------
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**btrfs-map-logical** will return 0 if no error happened.
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If any problems happened, 1 will be returned.
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SEE ALSO
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--------
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2022-08-08 07:28:56 +00:00
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:doc:`mkfs.btrfs(8)<mkfs.btrfs>`
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