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    Command:

    xfs_info

    
    
    
    

    SYNOPSIS

           xfs_growfs  [  -dilnrxV ] [ -D size ] [ -e rtextsize ] [ -L size ] [ -m
           maxpct ] [ -t mtab ] [ -R size ] mount-point
           xfs_info [ -t mtab ] mount-point
    
    
    

    DESCRIPTION

           xfs_growfs expands an existing XFS filesystem (see xfs(5)).  The mount-
           point argument is the pathname of the directory where the filesystem is
           mounted. The filesystem must be mounted to  be  grown  (see  mount(8)).
           The  existing contents of the filesystem are undisturbed, and the added
           space becomes available for additional file storage.
    
           xfs_info is equivalent to invoking xfs_growfs with the -n  option  (see
           discussion below).
    
    
    

    OPTIONS

           -d | -D size
                  Specifies  that  the  data  section  of the filesystem should be
                  grown. If the -D size option is given, the data section is grown
                  to that size, otherwise the data section is grown to the largest
                  size possible with the -d  option.  The  size  is  expressed  in
                  filesystem blocks.
    
           -e     Allows the real-time extent size to be specified. In mkfs.xfs(8)
                  this is specified with -r extsize=nnnn.
    
           -i     The new log is  an  internal  log  (inside  the  data  section).
                  [NOTE: This option is not implemented]
    
           -l | -L size
                  Specifies  that  the  log  section  of  the filesystem should be
                  grown, shrunk, or moved. If the -L size option is given, the log
                  section  is  changed  to  be that size, if possible. The size is
                  expressed in filesystem blocks.  The size  of  an  internal  log
                  must be smaller than the size of an allocation group (this value
                  is printed at mkfs(8) time). If neither -i nor -x is given  with
                  -l,  the  log  continues  to  be  internal or external as it was
                  before.  [NOTE: These options are not implemented]
    
           -m     Specify a new value for the maximum percentage of space  in  the
                  filesystem  that can be allocated as inodes. In mkfs.xfs(8) this
                  is specified with -i maxpct=nn.
    
           -n     Specifies that no change to the filesystem is to be  made.   The
                  filesystem  geometry  is  printed, and argument checking is per-
                  formed, but no growth occurs.  See output examples below.
    
           -r | -R size
                  Specifies that the real-time section of the filesystem should be
                  grown.  If the -R size option is given, the real-time section is
                  grown to that size, otherwise the real-time section is grown  to
    
           md(4)  and lvm(8) on Linux).  However, it can also be used on a regular
           disk partition, for example if a  partition  has  been  enlarged  while
           retaining the same starting block.
    
    
    

    PRACTICAL USE

           Filesystems  normally  occupy all of the space on the device where they
           reside. In order to grow a filesystem, it is necessary to provide added
           space  for it to occupy. Therefore there must be at least one spare new
           disk partition available. Adding the space is often  done  through  the
           use of a logical volume manager.
    
    
    

    EXAMPLES

           Understanding xfs_info output.
    
           Suppose one has the following "xfs_info /dev/sda" output:
    
             meta-data=/dev/sda      isize=256    agcount=32, agsize=16777184 blks
                      =              sectsz=512   attr=2
             data     =              bsize=4096   blocks=536869888, imaxpct=5
                      =              sunit=32     swidth=128 blks
             naming   =version 2     bsize=4096
             log      =internal      bsize=4096   blocks=32768, version=2
                      =              sectsz=512   sunit=32 blks, lazy-count=1
             realtime =none          extsz=524288 blocks=0, rtextents=0
    
           Here,  the  data  section of the output indicates "bsize=4096", meaning
           the data block size for this filesystem is 4096  bytes.   This  section
           also  shows  "sunit=32 swidth=128 blks", which means the stripe unit is
           32*4096 bytes = 128 kibibytes and the stripe width is 128*4096 bytes  =
           512  kibibytes.   A single stripe of this filesystem therefore consists
           of four stripe units (128 blocks / 32 blocks per unit).
    
    
    

    SEE ALSO

           mkfs.xfs(8), md(4), lvm(8), mount(8).
    
                                                                     xfs_growfs(8)
    
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