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+gsycnd, the Gluster Syncdaemon
+==============================
+
+REQUIREMENTS
+------------
+
+_gsyncd_ is a program which can operate either in _master_ or in _slave_ mode.
+Requirements are categorized according to this.
+
+* supported OS is GNU/Linux
+* Python >= 2.5, or 2.4 with Ctypes (see below) (both)
+* OpenSSH >= 4.0 (master) / SSH2 compliant sshd (eg. openssh) (slave)
+* rsync (both)
+* glusterfs with marker support (master); glusterfs (optional on slave)
+* FUSE; for supported versions consult glusterfs
+
+INSTALLATION
+------------
+
+As of now, the supported way of operation is running from the source directory.
+
+If you use Python 2.4.x, you need to install the [Ctypes module](http://python.net/crew/theller/ctypes/).
+
+CONFIGURATION
+-------------
+
+gsyncd tunables are a subset of the long command-line options; for listing them,
+type
+
+ gsyncd.py --help
+
+and see the long options up to "--config-file". (The leading double dash should be omitted;
+interim underscores and dashes are interchangeable.) The set of options bear some resemblance
+to those of glusterfs and rsync.
+
+The config file format matches the following syntax:
+
+ <option1>: <value1>
+ <option2>: <value2>
+ # comment
+
+By default (unless specified by the option `-c`), gsyncd looks for config file at _conf/gsyncd.conf_
+in the source tree.
+
+USAGE
+-----
+
+gsyncd is a utilitly for continous mirroring, ie. it mirrors master to slave incrementally.
+Assume we have a gluster volume _pop_ at localhost. We try to set up the following mirrors
+for it with gysncd:
+
+1. _/data/mirror_
+2. local gluster volume _yow_
+3. _/data/far_mirror_ at example.com
+4. gluster volume _moz_ at example.com
+
+The respective gsyncd invocations are (demoing some syntax sugaring):
+
+1.
+
+ gsyncd.py gluster://localhost:pop file:///data/mirror
+
+ or short form
+
+ gsyncd.py :pop /data/mirror
+
+2. `gsyncd :pop :yow`
+3.
+
+ gsyncd.py :pop ssh://example.com:/data/far_mirror
+
+ or short form
+
+ gsyncd.py :pop example.com:/data/far_mirror
+
+4. `gsyncd.py :pop example.com::moz`
+
+gsyncd has to be available on both sides; it's location on the remote side has to be specified
+via the "--remote-gsyncd" option (or "remote-gsyncd" config file parameter). (This option can also be
+used for setting options on the remote side, although the suggested mode of operation is to
+set parameters like log file / pid file in the configuration file.)