innobackupex-1.5.1 --help
Options:
    --apply-log
        Prepare a backup in BACKUP-DIR by applying the transaction log file
        named "xtrabackup_logfile" located in the same directory. Also,
        create new transaction logs. The InnoDB configuration is read from
        the file "backup-my.cnf".

    --copy-back
        Copy all the files in a previously made backup from the backup
        directory to their original locations.

    --databases=LIST
        This option specifies the list of databases that innobackupex should
        back up. The option accepts a string argument. The list is of the
        form "databasename1[.table_name1] databasename2[.table_name2] . .
        .". If this option is not specified, all databases containing MyISAM
        and InnoDB tables will be backed up. Please make sure that
        --databases contains all of the InnoDB databases and tables, so that
        all of the innodb.frm files are also backed up. In case the list is
        very long, this can be specified in a file, and the full path of the
        file can be specified instead of the list. (See option
        --tables-file.)

    --defaults-file=[MY.CNF]
        This option specifies what file to read the default MySQL options
        from. The option accepts a string argument. It is also passed
        directly to xtrabackup's --defaults-file option. See the xtrabackup
        documentation for details.

    --export
        This option is passed directly to xtrabackup's --export option. It
        enables exporting individual tables for import into another server.
        See the xtrabackup documentation for details.

    --extra-lsndir=DIRECTORY
        This option specifies the directory in which to save an extra copy
        of the "xtrabackup_checkpoints" file. The option accepts a string
        argument. It is passed directly to xtrabackup's --extra-lsndir
        option. See the xtrabackup documentation for details.

    --force-tar
        This option forces the use of tar when creating a streamed backup,
        rather than tar4ibd, which is the default.

    --help
        This option displays a help screen and exits.

    --host=HOST
        This option specifies the host to use when connecting to the
        database server with TCP/IP. The option accepts a string argument.
        It is passed to the mysql child process without alteration. See
        mysql --help for details.

    --ibbackup-binary=IBBACKUP-BINARY
        This option specifies which xtrabackup binary should be used. The
        option accepts a string argument. IBBACKUP-BINARY should be the
        command used to run XtraBackup. The option can be useful if the
        xtrabackup binary is not in your search path or working directory.
        If this option is not specified, innobackupex attempts to determine
        the binary to use automatically. By default, "xtrabackup" is the
        command used. However, when option --copy-back is specified,
        "xtrabackup_51" is the command used. And when option --apply-log is
        specified, the binary is used whose name is in the file
        "xtrabackup_binary" in the backup directory, if that file exists.

    --include=REGEXP
        This option is a regular expression to be matched against table
        names in databasename.tablename format. It is passed directly to
        xtrabackup's --tables option. See the xtrabackup documentation for
        details.

    --incremental
        This option tells xtrabackup to create an incremental backup, rather
        than a full one. It is passed to the xtrabackup child process. When
        this option is specified, either --incremental-lsn or
        --incremental-basedir can also be given. If neither option is given,
        option --incremental-basedir is passed to xtrabackup by default, set
        to the first timestamped backup directory in the backup base
        directory.

    --incremental-basedir=DIRECTORY
        This option specifies the directory containing the full backup that
        is the base dataset for the incremental backup. The option accepts a
        string argument. It is used with the --incremental option.

    --incremental-dir=DIRECTORY
        This option specifies the directory where the incremental backup
        will be combined with the full backup to make a new full backup. The
        option accepts a string argument. It is used with the --incremental
        option.

    --incremental-lsn
        This option specifies the log sequence number (LSN) to use for the
        incremental backup. The option accepts a string argument. It is used
        with the --incremental option. It is used instead of specifying
        --incremental-basedir. For databases created by MySQL and Percona
        Server 5.0-series versions, specify the LSN as two 32-bit integers
        in high:low format. For databases created in 5.1 and later, specify
        the LSN as a single 64-bit integer.

    --no-lock
        Use this option to disable table lock with "FLUSH TABLES WITH READ
        LOCK". Use it only if ALL your tables are InnoDB and you DO NOT CARE
        about the binary log position of the backup.

    --no-timestamp
        This option prevents creation of a time-stamped subdirectory of the
        BACKUP-ROOT-DIR given on the command line. When it is specified, the
        backup is done in BACKUP-ROOT-DIR instead.

    --parallel=NUMBER-OF-THREADS
        This option specifies the number of threads the xtrabackup child
        process should use to back up files concurrently. The option accepts
        an integer argument. It is passed directly to xtrabackup's
        --parallel option. See the xtrabackup documentation for details.

    --password=WORD
        This option specifies the password to use when connecting to the
        database. It accepts a string argument. It is passed to the mysql
        child process without alteration. See mysql --help for details.

    --port=PORT
        This option specifies the port to use when connecting to the
        database server with TCP/IP. The option accepts a string argument.
        It is passed to the mysql child process. It is passed to the mysql
        child process without alteration. See mysql --help for details.

    --redo-only
        This option is passed directly to xtrabackup's --apply-log-only
        option. This forces xtrabackup to skip the "rollback" phase and do a
        "redo" only. This is necessary if the backup will have incremental
        changes applied to it later. See the xtrabackup documentation for
        details.

    --remote-host=HOSTNAME
        This option specifies the remote host on which the backup files will
        be created, by using an ssh connection. The option accepts a string
        argument.

    --safe-slave-backup
        Stop slave SQL thread and wait to start backup until
        Slave_open_temp_tables in "SHOW STATUS" is zero. If there are no
        open temporary tables, the backup will take place, otherwise the SQL
        thread will be started and stopped until there are no open temporary
        tables. The backup will fail if Slave_open_temp_tables does not
        become zero after --safe-slave-backup-timeout seconds. The slave SQL
        thread will be restarted when the backup finishes.

    --safe-slave-backup-timeout
        How many seconds --safe-slave-backup should wait for
        Slave_open_temp_tables to become zero. (default 300)

    --scpopt=SCP-OPTIONS
        This option specifies the command line options to pass to scp when
        the option --remost-host is specified. The option accepts a string
        argument. If the option is not specified, the default options are
        "-Cp -c arcfour".

    --slave-info
        This option is useful when backing up a replication slave server. It
        prints the binary log position and name of the master server. It
        also writes this information to the "xtrabackup_slave_info" file as
        a "CHANGE MASTER" command. A new slave for this master can be set up
        by starting a slave server on this backup and issuing a "CHANGE
        MASTER" command with the binary log position saved in the
        "xtrabackup_slave_info" file.

    --socket=SOCKET
        This option specifies the socket to use when connecting to the local
        database server with a UNIX domain socket. The option accepts a
        string argument. It is passed to the mysql child process without
        alteration. See mysql --help for details.

    --stream=[tar|. . .]
        This option specifies the format in which to do the streamed backup.
        The option accepts a string argument. The backup will be done to
        STDOUT in the specified format. Currently, the only supported format
        is tar. Uses tar4ibd, which is available in XtraBackup
        distributions.

    --tables-file=FILE
        This option specifies the file in which there are a list of names of
        the form database. The option accepts a string argument.table, one
        per line. The option is passed directly to xtrabackup's
        --tables-file option.

    --throttle=IOS
        This option specifies a number of I/O operations (pairs of
        read+write) per second. It accepts an integer argument. It is passed
        directly to xtrabackup's --throttle option.

    --tmpdir=DIRECTORY
        This option specifies the location where a temporary file will be
        stored. The option accepts a string argument. It should be used when
        --remote-host or --stream is specified. For these options, the
        transaction log will first be stored to a temporary file, before
        streaming or copying to a remote host. This option specifies the
        location where that temporary file will be stored. If the option is
        not specifed, the default is to use the value of tmpdir read from
        the server configuration.

    --use-memory=MB
        This option specifies the amount of memory in megabytes for
        xtrabackup to use for crash recovery while preparing a backup. The
        option accepts a string argument. It is used only with the option
        --apply-log. It is passed directly to xtrabackup's --use-memory
        option. See the xtrabackup documentation for details.

    --user=NAME
        This option specifies the MySQL username used when connecting to the
        server, if that's not the current user. The option accepts a string
        argument. It is passed to the mysql child process without
        alteration. See mysql --help for details.

    --version
        This option displays the xtrabackup version and copyright notice and
        then exits.