NAME
xfs_estimate - estimate the space that an XFS filesystem will take
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_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,
xfs_estimate -b 64k / | |
| 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,
xfs_estimate -i 1m / | |
| requests an estimate of the space required by the directory / on an XFS filesystem using an internal log of 1 megabyte. | |
EXAMPLES
%
%
%
% xfs_estimate -e 10m /var/tmp
/var/tmp will take about 4.2 megabytes
with the external log using 2560 blocks or about 10.0 megabytes
xfs_estimate -v -e 10m /var/tmp
directory bsize blocks megabytes logsize
/var/tmp 4096 792 4.0MB 10485760
xfs_estimate -v /var/tmp
directory bsize blocks megabytes logsize
/var/tmp 4096 3352 14.0MB 10485760
xfs_estimate /var/tmp
/var/tmp will take about 14.0 megabytes
.Ee
