Home > Workload Solutions > SQL Server > White Papers > Deploying Dell EMC SRDF/Metro Smart DR with Microsoft SQL Server for Physical and Virtual Environments > Step 4: Determine which storage groups to protect
A storage group (SG) is a way to group devices together so they can be managed as a single entity. A SG can be stand-alone or in a parent-child relationship. A parent SG contains one or more child SGs. In this way, storage management operations on the stand-alone (or child) SG apply only to that SG, and operations on the parent apply to all of its child SGs as a unit. There are different ways in which a storage group can be created and the parent-child relationship shown here can be defined. These steps are not defined in this document. See the Dell EMC PowerMax Family Product Guide for more details on this topic or to other documents found in the References. For Microsoft SQL Server data and log child storage groups are created and added to a parent storage group to manage the entire database as a single entity while still allowing specific service levels and other storage level policies applied to the children.
Figure 7. List of SGs to be Protected