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    Command:

    xfs_estimate

    
    
    

    SYNOPSIS

           xfs_estimate [ -h? ] [ -b blocksize ] [ -i logsize ]
                        [ -e logsize ] [ -v ] directory ...
    
    
    

    DESCRIPTION

           For  each  directory  argument,  xfs_estimate  estimates the space that
           directory would take if it were copied to an XFS filesystem.  xfs_esti-
           mate does not cross mount points.  The following definitions are used:
                  KB = *1024
                  MB = *1024*1024
                  GB = *1024*1024*1024
    
           The xfs_estimate options are:
    
           -b blocksize
                  Use  blocksize  instead  of the default blocksize of 4096 bytes.
                  The modifier k can be used after the number to  indicate  multi-
                  plication by 1024.  For example,
    
                       xxffss_eessttiimmaattee --bb 6644kk //
    
                  requests an estimate of the space required by the directory / on
                  an XFS filesystem using a blocksize of 64K (65536) bytes.
    
           -v     Display more information, formatted.
    
           -h     Display usage message.
    
           -?     Display usage message.
    
           -i, -e logsize
                  Use logsize instead of the default log size of 1000 blocks.   -i
                  refers  to  an internal log, while -e refers to an external log.
                  The modifiers k or m can be used after the  number  to  indicate
                  multiplication by 1024 or 1048576, respectively.
    
                  For example,
    
                       xxffss_eessttiimmaattee --ii 11mm //
    
                  requests an estimate of the space required by the directory / on
                  an XFS filesystem using an internal log of 1 megabyte.
    
    
    

    EXAMPLES

           % xxffss_eessttiimmaattee --ee 1100mm //vvaarr//ttmmpp
           /var/tmp will take about 4.2 megabytes
                   with the external log using 2560 blocks or about 10.0 megabytes
    
           % xxffss_eessttiimmaattee --vv --ee 1100mm //vvaarr//ttmmpp
           directory                     bsize   blocks    megabytes    logsize
           /var/tmp                       4096      792        4.0MB   10485760
    
    
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