Secure Path v2.0 for Sun Solaris Installation and Reference Guide

1-2 StorageWorks Secure Path Version 2.0 for Sun Solaris
Compaq Confidential – Need to Know Required
Writer: Cyndi Vaccaro Project: StorageWorks Secure Path Version 2.0 for Sun Solaris Comments:
Part Number: AA-RKYDA-TE File Name: b-ch1 Theory of Operation.doc Last Saved On: 12/21/99 4:06 PM
HSG80
Controllers
Fibre Channel
Host Bus Adapters
Controller 0
Controller 1
RAID
Storage
Subsystem
Solaris
Server
SHR-1600
0 1
Figure 1-1. Basic Secure Path Configuration
Secure Path version 2.0 has the following features.
Allows a StorageWorks dual-controller RAID system to be cabled on
two independent Fibre Channel Arbitrated Loop paths using two host
bus adapters (HBA) in each server.
Monitors each path and automatically re-routes I/O to the functioning
alternate path should an adapter, cable, hub or controller failure occur.
Failure detection is reliable and designed to prevent false or unnecessary
failovers. Failovers are transparent and non-disruptive to applications.
Provides a Management Utility to monitor and manage Secure Path
devices and paths.
Provides support for Veritas Cluster Server high availability
environments.
Secure Path Technology
The key to Secure Path’s functionality is the capability of dual StorageWorks
RAID controllers to operate in an active/active implementation, referred to as
dual-redundant multiple-bus mode.