Maximizing Efficiency Through Data Replication Manager Data Movement Application Notes

Procedures and Examples
34 Application Notes - Maximizing Efficiency Through Data Replication Manager Data Movement
Example
The following example demonstrates how to migrate from one data set type to another. The example
uses two controller pairs. The initiator site uses controller pair BUILDNGA and the target site uses
controller pair BUILDNGB.
NOTE: For simplification, there are no association sets established for the remote copy sets in this example.
I 1. We begin by showing the initial conditions of the LUNs by issuing two SHOW commands. The
following command is used to show all units configured to the initiator controller:
SHOW UNITS FULL
Example Display 27 shows a sample output of this command. Note the size of disk D1, which is
the disk migrating to a larger size.
Example Display 27
LUN Uses Used by
------------------------------------------------------------------------------
D1 DISK10000 BUILDNGA\RCS1
LUN ID: 6000-1FE1-0000-1530-0009-9231-4229-0095
NOIDENTIFIER
Switches:
RUN NOWRITE_PROTECT READ_CACHE
READAHEAD_CACHE WRITEBACK_CACHE
MAX_READ_CACHED_TRANSFER_SIZE = 128
MAX_WRITE_CACHED_TRANSFER_SIZE = 128
Access:
BUILDNGBA, BUILDNGBB, BUILDNGBC, BUILDNGBD
State:
ONLINE to this controller
Not reserved
PREFERRED_PATH = THIS_CONTROLLER
Size: 17769177 blocks
Geometry (C/H/S): ( 5258 / 20 / 169 )
D3 DISK30000 BUILDNGA\RCS3
LUN ID: 6000-1FE1-0000-1530-0009-9231-4229-0093
NOIDENTIFIER
Switches:
RUN NOWRITE_PROTECT READ_CACHE
READAHEAD_CACHE WRITEBACK_CACHE
MAX_READ_CACHED_TRANSFER_SIZE = 128
MAX_WRITE_CACHED_TRANSFER_SIZE = 128
Access:
BUILDNGBA, BUILDNGBB, BUILDNGBC, BUILDNGBD
State:
ONLINE to this controller
Not reserved
PREFERRED_PATH = OTHER_CONTROLLER
Size: 17769177 blocks
Geometry (C/H/S): ( 5258 / 20 / 169 )
I 2. Issue another SHOW command to show the initial remote copy set conditions:
SHOW REMOTE_COPY_SETS FULL
Example Display 28 shows a sample output of this command.