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/ IRIX Base Documentation 2002 November / SGI IRIX Base Documentation 2002 November.iso / usr / share / catman / a_man / cat1 / xfs_estimate.z / xfs_estimate
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Text File  |  2002-10-03  |  4.7 KB  |  133 lines
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  4. xxxxffffssss____eeeessssttttiiiimmmmaaaatttteeee((((1111MMMM))))                                              xxxxffffssss____eeeessssttttiiiimmmmaaaatttteeee((((1111MMMM))))
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  8. NNNNAAAAMMMMEEEE
  9.      xfs_estimate - estimate the space that an XFS filesystem will take
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  11. SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
  12.      xxxxffffssss____eeeessssttttiiiimmmmaaaatttteeee [ ----hhhh???? ] [ ----bbbb blocksize ] [ ----iiii logsize ] [ ----eeee logsize ] [ ----vvvv ] directory ...
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  14. DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
  15.      For each _d_i_r_e_c_t_o_r_y argument, _x_f_s__e_s_t_i_m_a_t_e estimates the space that
  16.      directory would take if it were copied to an XFS filesystem.
  17.      _x_f_s__e_s_t_i_m_a_t_e does not cross mount points.  The following definitions are
  18.      used:
  19.           KB = *1024
  20.           MB = *1024*1024
  21.           GB = *1024*1024*1024
  22.  
  23.      The _x_f_s__e_s_t_i_m_a_t_e options are:
  24.  
  25.      ----bbbb _b_l_o_c_k_s_i_z_e
  26.           Use _b_l_o_c_k_s_i_z_e instead of the default blocksize of 4096 bytes.  The
  27.           modifier kkkk can be used after the number to indicate multiplication
  28.           by 1024.  For example,
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  30.                _xxxx_ffff_ssss______eeee_ssss_tttt_iiii_mmmm_aaaa_tttt_eeee _----_bbbb _6666_4444_kkkk _////
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  32.           requests an estimate of the space required by the directory / on an
  33.           XFS filesystem using a blocksize of 64K (65536) bytes.
  34.  
  35.      ----vvvv   Display more information, formatted.
  36.  
  37.      ----hhhh   Display usage message.
  38.  
  39.      ----????   Display usage message.
  40.  
  41.      ----iiii,,,, ----eeee _l_o_g_s_i_z_e
  42.           Use _l_o_g_s_i_z_e instead of the default log size of 10 MB.  ----iiii refers to
  43.           an internal log, while ----eeee refers to an external log.  The modifiers
  44.           kkkk or mmmm can be used after the number to indicate multiplication by
  45.           1024 or 1048576, respectively.
  46.  
  47.           For example,
  48.  
  49.                _xxxx_ffff_ssss______eeee_ssss_tttt_iiii_mmmm_aaaa_tttt_eeee _----_iiii _1111_mmmm _////
  50.  
  51.           requests an estimate of the space required by the directory / on an
  52.           XFS filesystem using an internal log of 1 megabyte.
  53.  
  54.      If _xxxx_ffff_ssss______eeee_ssss_tttt_iiii_mmmm_aaaa_tttt_eeee is run on an XFS filesystem, the estimate is less
  55.      reliable than on an EFS filesystem.
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  63.                                                                         PPPPaaaaggggeeee 1111
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  70. xxxxffffssss____eeeessssttttiiiimmmmaaaatttteeee((((1111MMMM))))                                              xxxxffffssss____eeeessssttttiiiimmmmaaaatttteeee((((1111MMMM))))
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  73.  
  74. EXAMPLES
  75.           % _xxxx_ffff_ssss______eeee_ssss_tttt_iiii_mmmm_aaaa_tttt_eeee _----_eeee _1111_0000_mmmm _////_vvvv_aaaa_rrrr_////_tttt_mmmm_pppp
  76.           /var/tmp will take about 4.2 megabytes
  77.                   with the external log using 2560 blocks or about 10.0 megabytes
  78.  
  79.           % _xxxx_ffff_ssss______eeee_ssss_tttt_iiii_mmmm_aaaa_tttt_eeee _----_vvvv _----_eeee _1111_0000_mmmm _////_vvvv_aaaa_rrrr_////_tttt_mmmm_pppp
  80.           directory                     bsize   blocks    megabytes    logsize
  81.           /var/tmp                       4096      792        4.0MB   10485760
  82.  
  83.           % _xxxx_ffff_ssss______eeee_ssss_tttt_iiii_mmmm_aaaa_tttt_eeee _----_vvvv _////_vvvv_aaaa_rrrr_////_tttt_mmmm_pppp
  84.           directory                     bsize   blocks    megabytes    logsize
  85.           /var/tmp                       4096     3352       14.0MB   10485760
  86.  
  87.           % _xxxx_ffff_ssss______eeee_ssss_tttt_iiii_mmmm_aaaa_tttt_eeee _////_vvvv_aaaa_rrrr_////_tttt_mmmm_pppp
  88.           /var/tmp will take about 14.0 megabytes
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  129.                                                                         PPPPaaaaggggeeee 2222
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