mirror of
https://github.com/kdave/btrfs-progs
synced 2024-12-24 23:22:27 +00:00
dfc66e3c93
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com> Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.cz> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
34 lines
1.0 KiB
Groff
34 lines
1.0 KiB
Groff
.TH BTRFS-MAP-LOGICAL 8
|
|
.SH NAME
|
|
btrfs-map-logical \- map btrfs logical extent to physical extent
|
|
.SH SYNOPSIS
|
|
.B btrfs-map-logical [\fIoptions\fP] \fI<device>\fP
|
|
.SH DESCRIPTION
|
|
\fBbtrfs-map-logical\fP can be used to find out what the physical offsets are
|
|
on the mirrors, the result is dumped into stdout in default.
|
|
|
|
\fIOptions\fP
|
|
.IP "\fB-l|--logical \fI<logical_num>\fP" 5
|
|
Logical extent to map.
|
|
.IP "\fB-c|--copy \fI<copy>\fP" 5
|
|
Copy of the extent to read(usually 1 or 2).
|
|
.IP "\fB-o|--output \fI<filename>\fP" 5
|
|
Output file to hold the extent.
|
|
.IP "\fB-b|--bytes \fI<bytes>\fP" 5
|
|
Number of bytes to read.
|
|
|
|
.SH EXIT CODE
|
|
\fBbtrfs-map-logical\fP will return 0 if no error happened.
|
|
If any problems happened, 1 will be returned.
|
|
|
|
.SH AUTHOR
|
|
Written by Shilong Wang and Wenruo Qu.
|
|
|
|
.SH COPYRIGHT
|
|
Copyright \(co 2013 Fujitsu, Inc.
|
|
License GPLv2: GNU GPL version 2 <http://gnu.org/licenses/gpl.html>.
|
|
.br
|
|
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
|
|
.SH SEE ALSO
|
|
.BR mkfs.btrfs (8)
|