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

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: c-ch2 Technical Description.doc Last Saved On: 12/21/99 4:52 PM
Chapter 2
Technical Description
Overview
Secure Path is server-based software that enhances the StorageWorks RAID
storage system by providing automatic recovery from server-to-storage system
connection failures. Secure Path supports two I/O paths between a Solaris host
and a RAID storage system, improving overall data availability. If any
component in the path between the host and storage system fails, Secure Path
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.
Software Components
The Secure Path software consists of the Secure Path drivers (ldLite, mda and
path), the spdaemon, and the spconfig, spmt and spinit management tools.
Together, these software components are used to create, configure and manage
redundant paths to a storage device. Figure 2-1 shows each component in the
path along which data moves from an application to storage.