gfrep - Online in the Cloud

This is the command gfrep that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


gfrep - replicate Gfarm files

SYNOPSIS


gfrep [-mnqvx] [-S source-domainname] [-D destination-domainname] [-h source-hostfile]
[-H destination-hostfile] [-N num-of-replicas] [-j num-of-threads] path...

DESCRIPTION


gfrep creates specified number of replicas of Gfarm files specified by the path to
specified set of destination hosts. When set of source hosts are specified, only files
stored on the set of source hosts are replicated. 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.

If the path parameter is a directory, files under the directory will be copied
recursively.

OPTIONS


-S source-domainname
Specifies the domain name of source filesystem nodes from which replicas will be
copied.

-D destination-domainname
Specifies the domain name of destination filesystem nodes to which replicas will be
copied.

If neither this nor the -H option is specified, replicas may be copied to any
available host.

-h source-hostfile
Specifies a file which describes hostnames of source filesystem nodes from which the
replica will be made. The source-hostfile consists of a filesystem node name on each
line.

if ``-'' is specified, standard input is used to read the host list.

-H destination-hostfile
Specifies a file which describes hostnames of destination filesystem nodes on which
the replica will be made. The destination-hostfile consists of a filesystem node name
on each line.

if ``-'' is specified, standard input is used to read the host list.

-N num-of-replicas
Specifies the required number of file replicas, counting already existing ones. If
there are a sufficient number of replicas in the destination hosts, neither any
copying nor any removal will be done.

If this option is not specified, -N 1 is assumed.

-j num-of-threads
Specifies the number of threads to create file replicas simultaneously. This option is
only available when compiled by an OpenMP C compiler. By default, it will be the
smallest among the number of total files, the number of source hosts, and the number
of destination hosts.

-m
Lets gfrep command do a migrate/move, instead of doing replication.

-x
Removes file replicas when a set of destination nodes has more file replicas than
specified.

-n
Displays files to be replicated, but does nothing.

-q
Suppresses non-error messages.

-v
Displays verbose output.

-?
Displays a list of command options.

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