zfs-fuse - ZFS filesystem daemon

       This manual page was written by Bryan Donlan bdonlan@gmail.com 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 License.

       Revised by Seth Heeren zfs-fuse@sehe.nl

       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 /usr/share/doc/zfs-fuse/copyright

       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).

       Copyright © 2010 Bryan Donlan

[FIXME: source]                                    2010-06-09                                        ZFS-FUSE(8)

       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.

       zfs-fuse - ZFS filesystem daemon

       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.

       -pfilename--pidfilefilename
           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.

       --no-kstat-mount
           Do not mount kstats in /zfs-kstat

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

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

       -eSECONDS--fuse-entry-timeoutSECONDS
           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.

       --log-uberblocks
           Logs uberblocks of any mounted filesystem to syslog

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

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

       -uMIN--min-uberblock-txgMIN
           Skips uberblocks with a TXG < MIN when mounting any fs

       -vMB--vdev-cache-sizeMB
           adjust the size of the vdev cache. Default : 10

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

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

       -x--enable-xattr
           Enable support for extended attributes. Not generally recommended because it currently has a
           significant performance penalty for many small IOPS

       -h--help
           Show this usage summary.

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

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

zfs-fuse [--pidfilefilename] [--no-daemon] [--no-kstat-mount] [--disable-block-cache]
                [--disable-page-cache] [--fuse-attr-timeoutSECONDS] [--fuse-entry-timeoutSECONDS]
                [--log-uberblocks] [--max-arc-sizeMB] [--fuse-mount-optionsOPT,OPT,OPT...]
                [--min-uberblock-txgMIN] [--stack-size=size] [--enable-xattr] [--help]