1ZFS-FUSE(8)                     [FIXME: manual]                    ZFS-FUSE(8)
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NAME

6       zfs-fuse - ZFS filesystem daemon
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SYNOPSIS

9       zfs-fuse [--pidfile filename] [--no-daemon] [--no-kstat-mount]
10                [--disable-block-cache] [(--disable-page-cache)]
11                [--fuse-attr-timeout SECONDS] [--fuse-entry-timeout SECONDS]
12                [--log-uberblocks] [--max-arc-size MB]
13                [--fuse-mount-options OPT,OPT,OPT...]
14                [--min-uberblock-txg MIN] [--stack-size=size] [--enable-xattr]
15                [--help]
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DESCRIPTION

18       This manual page documents briefly the zfs-fuse command.
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20       zfs-fuse is a daemon which provides support for the ZFS filesystem, via
21       fuse. Ordinarily this daemon will be invoked from system boot scripts.
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OPTIONS

24       This program follows the usual GNU command line syntax, with long
25       options starting with two dashes (`-'). A summary of options is
26       included below. For a complete description, see the Info files.
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28       -h --help
29           Show summary of options.
30
31       -p filename --pidfile filename
32           Write the daemon's PID to filename after daemonizing. Ignored if
33           --no-daemon is passed.  filename should be a fully-qualified path.
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35       -n --no-daemon
36           Stay in foreground, don't daemonize.
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38       --no-kstat-mount
39           Do not mount kstats in /zfs-kstat
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41       --disable-block-cache
42           Enable direct I/O for disk operations. Completely disables caching
43           reads and writes in the kernel block cache. Breaks mmap() in ZFS
44           datasets too.
45
46       --disable-page-cache
47           (obsolete; option no longer has any effect)
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49       -a SECONDS --fuse-attr-timeout SECONDS
50           Sets timeout for caching FUSE attributes in kernel. Defaults to
51           0.0. Higher values give a 40% performance boost.
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53       -e SECONDS --fuse-entry-timeout SECONDS
54           Sets timeout for caching FUSE entries in kernel. Defaults to 0.0.
55           Higher values give a 10000% performance boost but cause file
56           permission checking security issues.
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58       --log-uberblocks
59           Logs uberblocks of any mounted filesystem to syslog
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61       -m MB --max-arc-size MB
62           Forces the maximum ARC size (in megabytes). Range: 16 to 16384.
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64       -o OPT... --fuse-mount-options OPT,OPT,OPT...
65           Sets FUSE mount options for all filesystems. Format:
66           comma-separated string of characters.
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68       -u MIN --min-uberblock-txg MIN
69           Skips uberblocks with a TXG < MIN when mounting any fs
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71       -v MB --vdev-cache-size MB
72           adjust the size of the vdev cache. Default : 10
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74       --zfs-prefetch-disable
75           Disable the high level prefetch cache in zfs. This thing can eat up
76           to 150 Mb of ram, maybe more
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78       --stack-size=size
79           Limit the stack size of threads (in kb). default : no limit (8 Mb
80           for linux)
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82       -x --enable-xattr
83           Enable support for extended attributes. Not generally recommended
84           because it currently has a significant performance penalty for many
85           small IOPS
86
87       -h --help
88           Show this usage summary.
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REMARKS ON PRECEDENCE

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

95       The path to the configuration file (/etc/zfs/zfsrc) cannot at this time
96       be configured.
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98       Most existing packages suggest settings can be set at the top of their
99       init script. These get frequently overridden by a (distribution
100       specific) /etc/default/zfs-fuse file, if it exists. Be sure to look at
101       these places if you want your changes to options to take effect.
102
103       The /etc/zfs/zfsrc is going to be the recommended approach in the
104       future. So, packagers, please refrain from passing commandline
105       parameters within the initscript (except for --pid-file).
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SEE ALSO

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

111       This manual page was written by Bryan Donlan bdonlan@gmail.com for the
112       Debian(TM) system (but may be used by others). Permission is granted to
113       copy, distribute and/or modify this document under the terms of the GNU
114       General Public License, Version 2 any later version published by the
115       Free Software Foundation, or the Common Development and Distribution
116       License.
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118       Revised by Seth Heeren zfs-fuse@sehe.nl
119
120       On Debian systems, the complete text of the GNU General Public License
121       can be found in /usr/share/common-licenses/GPL. The text of the Common
122       Development and Distribution Licence may be found at
123       /usr/share/doc/zfs-fuse/copyright
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126       Copyright © 2010 Bryan Donlan
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130[FIXME: source]                   2010-06-09                       ZFS-FUSE(8)
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