Home > Storage > PowerMax and VMAX > Storage Admin > Dell PowerMax: Data Mobility Best Practices and Operational Guide > Consolidate a single application on two arrays into a single target
PowerMax Storage arrays have evolved to be more compact, have more power, and more storage as time progresses. NDM can be used to consolidate storage for applications that were once stored on multiple older arrays onto a single more powerful PowerMax array. Following Non-Disruptive Migration, application storage groups that are now consolidated on the newer array can be merged for simpler management, as long as the IGs and PGs contain the same elements.
The example above shows two storage groups (ApplicationSG1 and ApplicationSG2) that have been migrated from two separate arrays. The groups use the same application host and so their IGs are identical. The target PG was selected manually by the storage administrator.
The result is a single storage group, ApplicationSG2, that retains the original masking view.
With Solutions Enabler, use the symsg library:
symsg –sg <SgName> -sid <SymmID> merge <SgName1>
split <SgName1> -view_name <MvName>
For the merge operation, the -sg <SgName> option is used to specify the source SG, for example, ApplicationSG1 for the merge operation. Specifying the name of the Storage Group to be merged (EnhancementChild1_Split)
The result is a single SG called ApplicationSG1 that contains the devices from both SGs.