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.
BUGS
A source host is not always selected within a set of source hosts.