Yes. ADAPT virtual disk groups + "Quick rebuild" is faster than ADAPT linear disk groups rebuild.
Hello, In the Dell EMC PowerVault ME4 Series Storage System documentations I found the following statements: "Virtual storage provides the foundation for data-management features such as thin provisioning, automated tiered storage, SSD read cache, and the quick rebuild feature." "Quick rebuild is a method for reconstructing a virtual disk group that is no longer fault-tolerant after a disk failure. This method takes advantage of virtual storage knowledge of where user data is written to rebuild only the data stripes that contain user data." "ADAPT is a RAID-based data protection level that maximizes flexibility, provides built in spare capacity, and allows for very fast rebuilds, large storage pools, and simplified expansion. All disks in the ADAPT disk group must be the same type (enterprise SAS, for example), and in the same tier, but can have different capacities. ADAPT is shown as a RAID level in the management interfaces.""The RAID levels for linear disk groups created through the PowerVault Manager must be fault tolerant. The supported RAID levels for linear disk groups in the interface are: RAID 1, RAID 5, RAID 6, RAID 10, RAID 50 and ADAPT" The question is, will quick rebuild feature work for ADAPT linear disk groups, and if so, how fast will it be compared to ADAPT virtual disk groups?
Dell EMC PowerVault ME4 Series. ADAPT Linear pools and disk groups. Quick 
rebuild.