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- xxxxffffssss____bbbbmmmmaaaapppp((((1111MMMM)))) xxxxffffssss____bbbbmmmmaaaapppp((((1111MMMM))))
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- NNNNAAAAMMMMEEEE
- xfs_bmap - print block mapping for an XFS file
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- SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
- xxxxffffssss____bbbbmmmmaaaapppp [ ----aaaa ] [ ----llll ] [ ----dddd ] [ ----nnnn _n_n_n ] [ ----vvvv ] file ...
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- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- _x_f_s__b_m_a_p prints the map of disk blocks used by files in an XFS
- filesystem. The map lists each _e_x_t_e_n_t used by the file, as well as
- regions in the file that do not have any corresponding blocks (_h_o_l_es).
- Each line of the listings takes the following form:
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- _e_x_t_e_n_t: [_s_t_a_r_t_o_f_f_s_e_t.._e_n_d_o_f_f_s_e_t]: _s_t_a_r_t_b_l_o_c_k.._e_n_d_b_l_o_c_k
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- Holes are marked by replacing the _s_t_a_r_t_b_l_o_c_k.._e_n_d_b_l_o_c_k with _h_o_l_e. All
- the file offsets and disk blocks are in units of 512-byte blocks, no
- matter what the filesystem's block size is.
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- If portions of the file have been migrated offline by a DMAPI
- application, a DMAPI read event will be generated to bring those portions
- back online before the disk block map is printed. However if the ----dddd
- option is used, no DMAPI read event will be generated for a DMAPI file
- and offline portions will be reported as holes.
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- If the ----llll option is used, then
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- <_n_b_l_o_c_k_s> _b_l_o_c_k_s
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- will be appended to each line. _N_b_l_o_c_k_s is the length of the extent
- described on the line in units of 512-byte blocks.
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- If the ----aaaa option is given, information about the file's attribute fork is
- printed instead of the default data fork.
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- If the ----nnnn _n_n_n option is given, xxxxffffssss____bbbbmmmmaaaapppp obtains the extent list of the
- file in groups of _n_n_n extents. In the absence of ----nnnn, xxxxffffssss____bbbbmmmmaaaapppp queries
- the system for the number of extents in the file and uses that value to
- compute the group size.
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- If the ----vvvv option is given, the XFS allocation group and allocation group
- offsets are displayed for each extent. If the allocation is on a striped
- device, a flag is also displayed indicating if the extent does not fall
- on a stripe boundry.
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- DDDDIIIIAAAAGGGGNNNNOOOOSSSSTTTTIIIICCCCSSSS
- fcntl(F_GETBMAPX) _f_i_l_e_n_a_m_e: Invalid argument
- The file _f_i_l_e_n_a_m_e is not in an XFS filesystem.
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- PPPPaaaaggggeeee 1111
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- xxxxffffssss____bbbbmmmmaaaapppp((((1111MMMM)))) xxxxffffssss____bbbbmmmmaaaapppp((((1111MMMM))))
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- SSSSEEEEEEEE AAAALLLLSSSSOOOO
- fcntl(2), lv(7M), xlv(7M).
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- PPPPaaaaggggeeee 2222
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