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12.3.9.
Local Clone Transfers to Remote Replication
It is always being a problem that to do full copy over LAN or WAN when the replication task
is executed at the first time. It may take days or weeks to replicate data from source to
target within limited network bandwidth. We provide two methods to help users shorten the
time of executing a full copy.
1.
One is to skip full copy on a new, clean volume. The term “clean” means that the volume
has never been written data since created. For a new created volume which has not
been accessed, the system will recognize it and skip full copy automatically when the
remote replication task is created on this volume at the first time.
TIP:
Any I/O access to the new created volume will make it as “not clean”, even
though executing “Erase” function when a volume is created. The full copy
will take place in such a case.
2.
The other way is to use local volume clone function, which is a local data copy function
between volumes to execute full copy at the first time. Then carry all the physical disk
drives of the target volume and move to the target unit. Finally, turn the local clone task
into remote replication task with differential copy afterward.
Figure 12-51 Local Clone Transfers to Remote Replication Diagram
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