HP StorageWorks Data Replication Manager HSG80 ACS Version 8.7P Configuration Guide (AA-RPHZF-TE, March 2004)

Introduction to Data Replication Manager
30 Data Replication Manager HSG80 ACS Version 8.7P Configuration Guide
Software Components
This section describes the software components necessary to configure and manage a DT
storage subsystem. For installation instructions, see Chapter 4, “Configuring a Standard Data
Replication Manager Solution.”
Array Controller Software
HSG80 Array Controller Software (ACS) is the software component of the HSG80 Array
Controller subsystem. ACS software executes on the HSG80 controller and processes I/O
requests from the host, performing the device-level operations required to satisfy the requests.
The “P” version of the code, for example ACS Version 8.7P, supports DRM.
Secure Path
HP StorageWorks Secure Path is an additional server-based software that enhances the
StorageWorks RAID dual-ported storage subsystem by providing automatic error recovery
from server-to-storage subsystem connection failures. Secure Path allows you to add
redundant Fibre Channel paths between hosts and a RAID storage subsystem, improving
overall data availability. If any component in the path between the host and storage subsystem
fails, Secure Path immediately redirects all pending and subsequent I/O requests from the
failed path to the alternate path, preventing an adapter, cable, or controller failure from
disrupting data access.
Secure Path is required for operating systems (such as HP-UX, IBM AIX, Microsoft Windows
NT, Microsoft Windows 2000, Novell NetWare, and Sun Solaris) that do not have native
multipath support. HP Tru64 UNIX and HP OpenVMS do have native multipath support and
do not require Secure Path. Secure Path is a separate product from DRM and must be ordered
in addition to ACS Version 8.7P. For more information on Secure Path, refer to the Secure
Path documentation for your operating system.
Control and Monitoring Tools
You can use either of the following tools to create LUNs and remote copy sets on the HSG80
controller, and to monitor the status of the HSG80 controllers:
■ StorageWorks Command Console (SWCC)
■ Terminal emulation to the HSG80 console port
Only one of these tools may be used at any given time for creation and monitoring tasks. See
the section titled “Restrictions,” on page 31.