07-15-2011
You could put them on an NFS server export that both mount (have to watch for both writing at the same time, so make sure you have file locking considered, unless one is read only). The you're not really copying files, but this may result in other issues. This could be a server C or simply server A running NFS, that is mounted by server B.
rsync would be my choice, as it tunnels over ssh. Also, if the files are not 3GB of new data, then it only copies changes to those files.
It's difficult to give a definitive answer without more information as to the nature of the files and what they are being used for.
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LEARN ABOUT OPENSOLARIS
dfmounts_nfs
dfmounts_nfs(1M) System Administration Commands dfmounts_nfs(1M)
NAME
dfmounts_nfs - display mounted NFS resource information
SYNOPSIS
dfmounts [-F nfs] [-h] [server]...
DESCRIPTION
dfmounts shows the local resources shared through NFS, along with the list of clients that have mounted the resource. The -F flag may be
omitted if NFS is the only file system type listed in the file /etc/dfs/fstypes.
dfmounts without options, displays all remote resources mounted on the local system, regardless of file system type.
The output of dfmounts consists of an optional header line (suppressed with the -h flag) followed by a list of lines containing whitespace-
separated fields. For each resource, the fields are:
resource server pathname clients ...
where
resource Does not apply to NFS. Printed as a hyphen (-).
server Specifies the system from which the resource was mounted.
pathname Specifies the pathname that must be given to the share(1M) command.
clients Is a comma-separated list of systems that have mounted the resource.
OPTIONS
-F nfs Specifies the nfs-FSType.
-h Suppress header line in output.
server Displays information about the resources mounted from each server, where server can be any system on the network. If no server
is specified, the server is assumed to be the local system.
FILES
/etc/dfs/fstypes
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWnfscu |
+-----------------------------+-----------------------------+
SEE ALSO
mount(1M), share(1M), unshare(1M), attributes(5)
SunOS 5.11 6 Nov 2000 dfmounts_nfs(1M)