GNU.WIKI: The GNU/Linux Knowledge Base

  [HOME] [PHP Manual] [HowTo] [ABS] [MAN1] [MAN2] [MAN3] [MAN4] [MAN5] [MAN6] [MAN7] [MAN8] [MAN9]

  [0-9] [Aa] [Bb] [Cc] [Dd] [Ee] [Ff] [Gg] [Hh] [Ii] [Jj] [Kk] [Ll] [Mm] [Nn] [Oo] [Pp] [Qq] [Rr] [Ss] [Tt] [Uu] [Vv] [Ww] [Xx] [Yy] [Zz]


NAME

       nilfs-tune - adjust tunable file system parameters on NILFS file system

SYNOPSIS

       nilfs-tune [options] device

DESCRIPTION

       nilfs-tune  is  a  utility  to modify tunable file system parameters on
       NILFS2 file system in device.

       This command is valid for  inactive  NILFS2  file  systems.   Modifying
       active mounts may cause severe damage.

OPTIONS

       -f     Force to modify even the specified file system is mounted.

       -i interval
              Set the commit interval of segment.

       -m block-max
              Set   the   threshold   of   the  data  amount  of  the  segment
              construction.

       -l     List the contents of the file system superblock,  including  the
              current  values  of  the  parameters  that  can  be set via this
              program.

       -L volume-label
              Set the volume label of the file  system.   NILFS2  file  system
              labels  can be at most 80 bytes long.  If volume-label is longer
              than 80 bytes, nilfs-tune will truncate it.   The  volume  label
              can  be used mount(8) and /etc/fstab(5) (and possibly others) by
              specifying LABEL=volume-label instead of a block special  device
              name like /dev/sda5.

       -O [^]feature[,...]
              Set  or clear the indicated filesystem features (options) in the
              filesystem.  More than one filesystem feature can be cleared  or
              set  by  separating  features  with commas.  Filesystem features
              prefixed with a caret character ('^') will  be  cleared  in  the
              filesystem's  superblock;  filesystem  features without a prefix
              character will be added to the filesystem.

              The following filesystem feature can be  set  or  cleared  using
              nilfs-tune:

              block_count
                     Enable  block  count  per checkpoint.  After setting this
                     option, fsck should be run on the filesystem to make  the
                     counts right, but no fsck tool is available yet, sorry.

       -U UUID
              Set  the universally unique identifier (UUID) of the file system
              to UUID.  The format of the UUID  is  a  series  of  hex  digits
              separated         by         hyphens,         like         this:
              "c1b9d5a2-f162-11cf-9ece-0020afc76f16".

       -h     Display help message and exit.

AUTHOR

       Jiro SEKIBA <jir@unicus.jp>

AVAILABILITY

       nilfs-tune is part of the nilfs-utils package  and  is  available  from
       http://nilfs.sourceforge.net.

SEE ALSO

       nilfs(8), lscp(1), chcp(8), mkcp(8), rmcp(8).



  All copyrights belong to their respective owners. Other content (c) 2014-2018, GNU.WIKI. Please report site errors to webmaster@gnu.wiki.
Page load time: 0.085 seconds. Last modified: November 04 2018 12:49:43.