xfsestimate(1M) xfsestimate(1M)
NAME
xfs_estimate - estimate the space that an XFS filesystem will take
SYNOPSIS
xfsestimate [ -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,
xfsestimate -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 10 MB. -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,
xfsestimate -i 1m /
requests an estimate of the space required by the directory / on an
XFS filesystem using an internal log of 1 megabyte.
If xfsestimate is run on an XFS filesystem, the estimate is less
reliable than on an EFS filesystem.
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xfsestimate(1M) xfsestimate(1M)
EXAMPLES
% xfsestimate -e 10m /var/tmp
/var/tmp will take about 4.2 megabytes
with the external log using 2560 blocks or about 10.0 megabytes
% xfsestimate -v -e 10m /var/tmp
directory bsize blocks megabytes logsize
/var/tmp 4096 792 4.0MB 10485760
% xfsestimate -v /var/tmp
directory bsize blocks megabytes logsize
/var/tmp 4096 3352 14.0MB 10485760
% xfsestimate /var/tmp
/var/tmp will take about 14.0 megabytes
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