xfs_estimate(8)

NAME

xfs_estimate - estimate the space that an XFS filesystem will take

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

For each directory argument, xfs_estimate estimates the space that directory would take if it were copied to an XFS filesystem. xfs_estimate 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 multiplication 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.

% 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
% xxffss__eessttiimmaattee --vv //vvaarr//ttmmpp directory bsize blocks megabytes logsize /var/tmp 4096 3352 14.0MB 10485760
% xxffss__eessttiimmaattee //vvaarr//ttmmpp /var/tmp will take about 14.0 megabytes