NAME

       gfpcopy - copy Gfarm files in parallel

SYNOPSIS

       gfpcopy [-nqvdpPU] [-X regexp] [-S source-domainname] [-h source-hostfile]
               [-D destination-domainname] [-H destination-hostfile] [-j num-of-processes]
               [-J num-of-processes] [-M limit-byte] [-z minimum-byte] [-Z maximum-byte]
               [-w way-of-scheduling] [-W kilobytes-for-threshold] [-s KB/s-to-simulate]
               [-F num-for-readahead] [-b bufsize] [-f] [-e] [-k] source-path destination-path

DESCRIPTION

       gfpcopy copies files in parallel.

       When the source-path parameter is a directory, files under the directory will be copied
       recursively.

       When the destination-path does not exist, the directory is created. When the
       destination-path exists, a directry of the same name as the source-path is created under
       the destination-path.

       A set of source/destination hosts can be specified by a domain name and/or a hostlist
       file. When both a domain name and a hostlist file are specified, a set of hosts is
       determined by both conditions. When a set of source hosts is specified, only files stored
       on the source hosts are cppied. When a set of source hosts are specified, only files
       stored on the set of source hosts are copied. A set of hosts can be specified by a domain
       name and/or a host file. When both a domain name and a host file are specified, a set of
       hosts is determined by both conditions.

       gfpcopy can also read the directory and get information of the entries in parallel.

SOURCE PATH

       source-path must be following format. Files on HPSS cannot be copied.

       gfarm:...
           is Gfarm URL.

       file:...
           is URL of Local Filesystem.

       ANY
           is relative path or absolute path of Local Filesystem. When the path is a mountpoint
           on gfarm2fs, files are copied without passing through the gfarm2fs.

DESTINATION PATH

       destination-path must be following format.

       gfarm:...
           is Gfarm URL of a directory.

       file:...
           is URL of a directory on Local Filesystem.

       hpss:...
           is URL of a directory on HPSS. If A directory named the same as the source-path exists
           under this directory, the source-path cannot be copied. The difference of files cannot
           be copied to HPSS. Relative path such as "hpss:". or "hpss:dir" can be also specified.

       ANY
           is relative path or absolute path of Local Filesystem. When the path is a mountpoint
           on gfarm2fs, files are copied without passing through the gfarm2fs.

GFPCOPY OPTIONS

       These are the options only for gfpcopy.

       -b bufsize
           Specifies the buffer size to copy.

           The default value is 64KiB (64 * 1024).

       -f
           With -f option, existing destination files will be overwritten when the size is
           different or the modification time (mtime) is different from the source file.

           Without -f option, existing destination files will be overwritten when that they are
           older than the corresponding source files in the modification time.

       -e
           Skips existing destination files in order to execute multiple gfpcopy simultaneously.

       -k
           Does not copy symbolic links.

COMMON OPTIONS

       gfpcopy has the same options with gfprep. (see man gfprep)

EXAMPLES

       To copy files under the directory recursively.

           $ gfpcopy gfarm:///dir file:///tmp/dir

           $ gfpcopy file:///tmp/dir gfarm:///dir

           $ gfpcopy gfarm:///dir1 gfarm:///dir2

           $ gfpcopy gfarm:///dir hpss:///tmp/dir

           $ cd /mnt/gfarm2fs
           $ gfpcopy dir /tmp/dir

       To copy a file.

           $ gfpcopy gfarm:///dir/file file:///dir

           $ cd /mnt/gfarm2fs
           $ gfpcopy file /tmp/dir

NOTES

       If the gfmd and gfpcopy are far apart, the gfpcopy operation is slow. Specifying a large
       value by -j or -J options may be effective in such a case.

SEE ALSO

       gfprep(1), gfreg(1), gfexport(1), gfarm2.conf(5)