Data Replication Manager Windows-Based Server with Single Host Bus Adapter - Application Notes

Introduction
4 Application Notes – Data Replication Manager Windows-Based Server with Single Host Bus Adapter
• SANworks Data Replication Manager by Compaq HSG80 ACS Version 8.6-4P Failover/Failback
Procedures Guide, part number AA-RPJOC-TE
• SANworks Data Replication Manager by Compaq HSG80 ACS Version 8.6-4P Release Notes, part
number AA-RPJ2C-TE
• SANworks Data Replication Manager by Compaq HSG80 ACS Version 8.6-1P Scripting User
Guide, part number EK-DRMSC-OA. C01
• Compaq StorageWorks SAN Switch Zoning Reference Guide, part number EK-P20ZG-GA
• Compaq SANworks Secure Path Version 3.1 for Microsoft Windows Installation and Reference
Guide, part number AA-RL4SC-TE
Additional documentation, including white papers and best practices documents, are available via the
Compaq website at: http://www.compaq.com/products/sanworks/drm/index.html
Introduction
These Application Notes provide an overview of the operational aspects of a single FC HBA server in
a DRM environment and detail the behavior of the total solution in case of the failure of certain
hardware components. In addition, these Application Notes list actions you can take to eliminate some
single points of failure (SPOF), as well as other aspects that are important during the design and
implementation phases of a single FC HBA server configuration.
The Single FC HBA Solution Configuration
A server with a single FC HBA that is connected to an HSG80 controller operating in a DRM
environment must have access to both controllers from that single adapter. Therefore, unlike a standard
DRM configuration that has two separate and independent fabrics, the single FC HBA configuration
has one FC fabric to which all servers and controllers connect, as shown in Figure 1.
Figure 1: Single FC HBA configuration
Production Server
W2K or NT4
HBA
FC Switch
HSG80 Controllers
HBA
FC Switch
HSG80 Controllers
Standby Server
W2K or NT4
CXO7868A