Which two aspects must be in place before adding a Fault Set? (Select 2)

In a Dell PowerFlex system, a Fault Set is a logical grouping of Storage Data Servers (SDS) within a Protection Domain. The primary purpose of a Fault Set is to increase data availability by ensuring that mirrored copies of data are not placed on SDSs that share a common point of failure (e.g., the same server rack). For a Fault Set to be configured and functional, the foundational components that contain the SDSs and the storage they provide must already exist. These are the Protection Domain, which acts as the top-level container for the SDSs, and the Storage Pools, which are created from the storage devices managed by those SDSs.

1. Dell PowerFlex Architecture Guide: In the "PowerFlex core components" section

the document outlines the system's logical hierarchy. It establishes that a Protection Domain is a group of SDSs

and Storage Pools are created from the devices within those SDSs. Fault Sets are then defined as a subset of SDSs within a Protection Domain to control data placement within the Storage Pools. This confirms the dependency: Protection Domain -> Storage Pool -> Fault Set. (Reference section: "Logical architecture").

2. Dell PowerFlex Administration Guide: The procedure for creating a Fault Set explicitly takes place within the context of an existing Protection Domain. The guide states

"A Fault Set is a group of SDSs within a Protection Domain... When provisioning volumes

this ensures that the system does not place both primary and secondary copies of data on SDSs in the same fault set." This directly links the function of a Fault Set to protecting data within the Storage Pools of a Protection Domain. (Reference section: "Configuring and Managing Storage > Configuring Fault Sets").