Maximizing Efficiency Through Data Replication Manager Data Movement Application Notes

Procedures and Examples

Application Notes - Maximizing Efficiency Through Data Replication Manager Data Movement 17

Data Backup by Disk Rotation

Procedure

This procedure achieves data backup by removing the physical disk and replacing it with a new disk.

1 Remove the target LUN to be backed up from the remote copy set.

2 Physically remove the target LUN and store in another location.

3 Replace the physical target LUN with a new disk D1 and re-create it.

4 Add the target LUN to the remote copy set and allow it to normalize.

Figure 9: Data backup by disk removal

Example

The following example demonstrates how to back up data by disk removal and replacement. The

example uses two controller pairs. The initiator site uses controller pair BUILDNGA and the target site

uses controller pair BUILDNGB. A full normalization is used in the example. Another option is to

create a clone at the target site and remove this clone copy to another site.

Several SHOW commands are included at the beginning of this procedure to show the initial

conditions at the initiator site.

NOTE: There is an association set with a write history log disk on the LUN with data to be moved.

BuildngA

(Initiator)

BuildngB

(Target)

Remove

LUN from

RCS

Add new

LUN to

RCS

CXO7690A

Storage Site

Store

LUN

BuildngA BuildngB

Replace

and

recreate

LUN