In what way does an integrated NAS solution differ from a Gateway NAS solution?

A.
Integrated NAS manages storage devices through NAS software.
Gateway NAS relies on storage array management software to manage storage devices.

B.
Integrated NAS allows both file and block level access to the clients.
Gateway NAS allows only block level access to the clients.

C.
Integrated NAS utilizes specialized operating systems.
Gateway NAS utilizes generic operating systems.

D.
Integrated NAS uses Fibre Channel disks only.
Gateway NAS uses both Fibre Channel and SATA disks.

Explanation:
NAS Implementation
The unified NAS consolidates NAS-based and SAN-based data access within a unified storage
platform and provides a unified management interface for managing both the environments.
Unified NAS performs file serving and storing of file data, along with providing access to blocklevel data. It supports both CIFS and NFS protocols for file access and iSCSI and FC protocols for
block level access. Due to consolidation of NAS-based and SAN-based access on a single
storage platform, unified NAS reduces an organization’s infrastructure and management costs.
A gateway NAS device consists of one or more NAS heads and uses external and independently
managed storage. Similar to unified NAS, the storage is shared with other applications that uses
block-level I/O. Management functions in this type of solution are more complex than those in a
unified NAS environment because there are separate administrative tasks for the NAS head and
the storage.
EMC E10-001 Student Resource Guide. Module 7: Network-Attached Storage (NAS)