Q-Logic ISR6200 Benutzerhandbuch

SN0051424-00  B

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Remote Data Migration for iSR6200

This application note provides instructions for performing remote data migration using the QLogic 

iSR6200 Series of intelligent Storage Routers listed in the Products Affected table. These routers are 
collectively referred to as the iSR6200 throughout this application note. The iSR6200 command line 
interface is referred to as the CLI, and the SANsurfer

®

 Router Manager utility is referred to as the GUI 

throughout this document.

Remote data migration jobs are run as asynchronous mirror operations. During the initial copying 

phase of remote online migration, the iSR6200 tracks I/Os occurring in the already copied blocks by 
creating dirty region logs (DRLs). Remote online migration also keeps track of the I/Os after the initial 
copying phase and creates DRLs. The DRLs are stored in the data management LUN (DML). After the 
initial copying phase is complete, the DRLs are flushed continually. 

Before configuring remote data online migration jobs, you must configure the DML on the iSR6200. If 

you choose to migrate to a remote array in the offline mode, you need not create a DML. DMLs created on 
one blade are available for remote migration jobs across both blades. You can configure up to eight LUNs 
as DMLs. The maximum supported DML capacity is 2TB. For more information, see the Data Migration 
Service for iSR6200 User’s Guide.

The iSR6200 supports the following use cases for remote migration. 

 provides 

details on setting up the iSR6200 for these use cases:



Use Case 1: The source array is at the local site, and the destination array is at a remote site.

Use Case 1 typically applies to scenarios where the servers in a data center at Site A (the local site) 

are moved to a data center at Site B (the remote site) and the data storage associated with the servers 
are consolidated with existing or new storage arrays at Site B.

iSR6240

iSR6250

iSR6260