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Oracle Solaris SAN Configuration and Multipathing Guide     Oracle Solaris 10 1/13 Information Library
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Document Information


1.  Solaris I/0 Multipathing Overview

2.  Configuring Solaris I/O Multipathing Features

Configuring Multipathing I/O Features

Multipathing Considerations

Enabling and Disabling Multipathing

How to Enable Multipathing

How to Disable Multipathing

How to Determine if Multipathing is Enabled or Disabled

Enabling or Disabling Multipathing on a Per-Port Basis

Port Configuration Considerations

How to Configure Multipathing by Port

Configuring Third-Party Storage Devices

Third-Party Device Configuration Considerations

Configuring Third-Party Storage Devices: New Devices

How to Configure Third-Party Devices

Configuring Third-Party Storage Devices: Disabling Devices

How to Disable Third-Party Devices

Displaying Device Name Changes

Configuring Automatic Failback

How to Configure Automatic Failback

Administering Solaris I/O Multipathing

Displaying Multipathing Support Information

How to Display Multipathing Support Information

How to Display Properties of a Specific Initiator Port

How to Display Specific LU Information

How to Display All LUs Associated With a Specific Target Port

How to Display a LU With a Specific Name

Configuring Automatic Failback for Multipathing Support

How to Configure Automatic Failback for Specific Multipathing Support

How to Fail Over a LU

How to Enable a LU Path

How to Disable a LU Path

3.  Configuring Fabric-Connected Devices

4.  Configuring Oracle Solaris iSCSI Initiators

5.  Configuring SAS Domains

6.  Configuring IPFC SAN Devices

7.  Booting the Oracle Solaris OS From Fibre Channel Devices on x86 Based Systems

8.  Persistent Binding for Tape Devices

A.  Manual Configuration for Fabric-Connected Devices

B.  Supported FC-HBA API

C.  Troubleshooting Multipathing-Related Problems


Configuring Multipathing I/O Features

You can configure the multipathing features for FC devices to control all supported FC HBAs. Multipathing is disabled by default for FC devices on SPARC based systems, but is enabled by default on x86 based systems. Configuration of the multipathing features depends on how you intend to use your system.

Note - The multipathing feature is not available for parallel SCSI devices, but is available for FC, SAS, and iSCSI devices.

Multipathing Considerations

Before you change multipathing configuration, note the following considerations. Then follow the instructions for your machine architecture (SPARC or x86) described in the subsequent sections. Some devices need to be properly configured to work with the multipathing software. Refer to your storage array documentation for details on the device-specific configuration for your device.


Caution - If you have run the devfsadm -C or performed a reconfiguration boot, the old device paths will not exist and the stmsboot -L command will fail to provide this information.