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Oracle Solaris Administration: SAN Configuration and Multipathing     Oracle Solaris 11 Information Library
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Document Information


1.  Solaris I/0 Multipathing Overview

2.  Fibre Channel Multipathing Configuration Overview

3.  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

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 o 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

4.  Administering Multipathing Devices (mpathadm)

5.  Configuring SAN Devices

6.  Configuring Virtual Fibre Channel Ports

7.  Configuring FCoE Ports

8.  Configuring SAS Domains

9.  Configuring IPFC SAN Devices

10.  Booting the Solaris OS From Fibre Channel Devices on x86 Systems

11.  Persistent Binding for Tape Devices

A.  Manual Configuration for Fabric-Connected Devices

B.  Supported FC-HBA API

C.  Troubleshooting Multipathed Device Problems


Configuring Multipathing I/O Features

The multipathing features for FC devices can be configured 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 is also supported for tape drives and libraries.

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.