Working with paths, About paths – HP OpenView Storage Provisioner Software License User Manual

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Provisioning Storage

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OpenView Storage Provisioner User Guide

Working with Paths

A Path defines a connection from a host to a storage utility. With Storage
Provisioner, you can create paths to connect your selected host system to a storage
utility. This connection enables the customer to provision storage from the utility,
and allows the host to access volumes in a storage utility.

About Paths

The following information provides an overview of paths:

A path specifies the ports of the HBAs that connect the host to each storage
system in the storage utility. Before defining paths, each specified HBA
should be zoned to allow each HBA to see all controllers in the utility.

To connect a host to multiple storage utilities, you must define a different path
from the host to each utility. These paths may specify the same HBA ports.

Different hosts cannot have paths that specify the same HBA ports.

Both single-fabric and dual-fabric configurations are supported.

Paths to HSG80 storage utilities have the following additional characteristics:

— A host can connect to an HSG80 storage utility with one or more paths,

with each path specifying two HBAs (a pair in a multibus configuration).

— Different paths from the same host to the same storage utility must

contain different HBAs.

Paths to HSV110 storage utilities have the following additional
characteristics:

— A host can connect to an HSV110 storage utility with only one path.

— All HBA ports connected to the storage utility are specified in that path.

In working with paths, you can:

View existing path information.

Create paths.

Modify path information.

Delete paths.

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