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xfs_estimate(8)		    System Manager's Manual	       xfs_estimate(8)

NAME
       xfs_estimate - estimate the space that an XFS filesystem	will take

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

DESCRIPTION
       For  each directory argument, xfs_estimate estimates the	space that di-
       rectory 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,

		   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.

       -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.

       -V     Print the	version	number and exits.

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

							       xfs_estimate(8)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=xfs_estimate&sektion=8&manpath=FreeBSD+Ports+14.3.quarterly>

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