HP StorageWorks Secure Path V3.0C for Linux and Linux Workgroup Edition Installation and Reference Guide (AA-RU7VD-TE, February 2004)

Secure Path Technology
19Secure Path v3.0C for Linux and Linux Workgroup Edition Installation and Reference Guide
Features
Secure Path provides the following features:
■ Allows StorageWorks dual-controller RAID systems and host servers
equipped with multiple HBAs redundant physical connectivity along
independent Fibre Channel fabric paths
■ Monitors each path and automatically reroutes I/O to a functioning alternate
path if a component failure occurs
■ Determines the availability of storage units and physical paths through path
verification diagnostics
■ Monitors and identifies failed paths and failed over storage units
■ For the HSG80, HSV110 and HSV100 storage systems, Secure Path
facilitates static Load Balancing, which allows manual movement of devices
between controllers
■ Automatically restores failed over storage units to repaired paths with
Auto-Restore capability enabled
■ Implements antithrash filters to prevent failover/restore effects caused by
marginal or intermittent conditions
■ Exploits the potential for improved data throughput and increased bandwidth
using dual RAID controllers configured in multiple-bus mode operation with
Load Balancing capability enabled. This feature applies to the HSG80,
HSV110, and HSV100 storage systems only
■ Detects failures reliably without inducing false or unnecessary failovers
■ Implements failover/restore actions transparently without disrupting
applications