Software Manual
Table Of Contents
- Contents
- About this Guide
- NAS Data Path Manager
- Product Overview
- Data Path Concepts
- Install NAS Data Path Manager
- Monitor Data Paths
- Use Performance Monitor to Monitor HBAs
- View Volume Groups for Path Information
- Decide Whether to Manage the Data Paths
- Manage the Data Paths
- Text API Commands for NAS Data Path Manager
- Glossary
- Index
NAS Data Path Manager
12 hp StorageWorks NAS Data Path Manager Installation and User’s Guide
Data Path Concepts
Data paths exist wherever there are physical connections from an initiator (a NAS
server HBA) to a target (an array controller). Data Path Manager manages traffic
patterns among all available paths between the NAS server HBAs and the LUNs
in your arrays.
Figure 1: Preferred (optimal) and Alternate (non-optimal) Paths
Each path is comprised of the HBA, controller, and any necessary networking
hardware. NAS Data Path Manager evaluates the paths and determines which are
considered optimal and which are non-optimal. This is determined by looking at
the overhead associated with transferring data from the NAS 8000 to a specific
LUN on an associated storage device.