HP NAS 2000s - Manual (Page 5)

5 NAS Service Release 2 Quick Start Guide
1 Service Release 2
Overview
This guide documents enhancements and changes made to the
HP StorageWorks NAS 1200s, 2000s, 4000s, and 9000s.
Service Release 2 supersedes Service Release 1 and is an all
inclusive update package. Service Release 1 is not required prior
to installing Service Release 2.