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       zfs-fuse - ZFS filesystem daemon


       zfs-fuse [--pidfile filename] [--no-daemon] [--no-kstat-mount]
                [--disable-block-cache] [--disable-page-cache]
                [--fuse-attr-timeout SECONDS] [--fuse-entry-timeout SECONDS]
                [--log-uberblocks] [--max-arc-size MB]
                [--fuse-mount-options OPT,OPT,OPT...]
                [--min-uberblock-txg MIN] [--stack-size=size] [--help]


       This manual page documents briefly the zfs-fuse command.

       zfs-fuse is a daemon which provides support for the ZFS filesystem, via
       fuse. Ordinarily this daemon will be invoked from system boot scripts.


       This program follows the usual GNU command line syntax, with long
       options starting with two dashes (`-'). A summary of options is
       included below. For a complete description, see the Info files.

       -h --help
           Show summary of options.

       -p filename --pidfile filename
           Write the daemon's PID to filename after daemonizing. Ignored if
           --no-daemon is passed.  filename should be a fully-qualified path.

       -n --no-daemon
           Stay in foreground, don't daemonize.

           Do not mount kstats in /zfs-kstat

           Enable direct I/O for disk operations. Completely disables caching
           reads and writes in the kernel block cache. Breaks mmap() in ZFS
           datasets too.

           Disable the page cache for files residing within ZFS filesystems.
           Not recommended as it slows down I/O operations considerably.

       -a SECONDS --fuse-attr-timeout SECONDS
           Sets timeout for caching FUSE attributes in kernel. Defaults to
           0.0. Higher values give a 40% performance boost.

       -e SECONDS --fuse-entry-timeout SECONDS
           Sets timeout for caching FUSE entries in kernel. Defaults to 0.0.
           Higher values give a 10000% performance boost but cause file
           permission checking security issues.

           Logs uberblocks of any mounted filesystem to syslog

       -m MB --max-arc-size MB
           Forces the maximum ARC size (in megabytes). Range: 16 to 16384.

       -o OPT... --fuse-mount-options OPT,OPT,OPT...
           Sets FUSE mount options for all filesystems. Format:
           comma-separated string of characters.

       -u MIN --min-uberblock-txg MIN
           Skips uberblocks with a TXG < MIN when mounting any fs

       -v MB --vdev-cache-size MB
           adjust the size of the vdev cache. Default : 10

           Disable the high level prefetch cache in zfs. This thing can eat up
           to 150 Mb of ram, maybe more

           Limit the stack size of threads (in kb). default : no limit (8 Mb
           for linux)

       -h --help
           Show this usage summary.


       Note that the parameters passed on the command line take precedence
       over those supplied through /etc/zfs/zfsrc.


       The path to the configuration file (/etc/zfs/zfsrc) cannot at this time
       be configured.

       Most existing packages suggest settings can be set at the top of their
       init script. These get frequently overridden by a (distribution
       specific) /etc/default/zfs-fuse file, if it exists. Be sure to look at
       these places if you want your changes to options to take effect.

       The /etc/zfs/zfsrc is going to be the recommended approach in the
       future. So, packagers, please refrain from passing commandline
       parameters within the initscript (except for --pid-file).


       zfs (8), zpool (8), zdb(8), zstreamdump(8), /etc/zfs/zfsrc


       This manual page was written by Bryan Donlan for the
       Debian(TM) system (but may be used by others). Permission is granted to
       copy, distribute and/or modify this document under the terms of the GNU
       General Public License, Version 2 any later version published by the
       Free Software Foundation, or the Common Development and Distribution

       Revised by Seth Heeren

       On Debian systems, the complete text of the GNU General Public License
       can be found in /usr/share/common-licenses/GPL. The text of the Common
       Development and Distribution Licence may be found at


       Copyright (C) 2010 Bryan Donlan

[FIXME: source]                   2010-06-09