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SAN - Introduction to MPxIO (Oracle Storage Multi-Pathing Software, AKA STMS, SCSI_VHCI ) and Troubleshooting Central Link Page (Doc ID 1511153.1)

Last updated on OCTOBER 05, 2022

Applies to:

Emulex FC HBA - Version All Versions to All Versions [Release All Releases]
Qlogic FC HBA - Version All Versions to All Versions [Release All Releases]
Sun Storage Traffic Manager Software - Version 3.0 to 4.6 [Release 3.0 to 4.0]
Oracle Solaris on SPARC (32-bit)
Oracle Solaris on x86 (32-bit)
Oracle Solaris on x86-64 (64-bit)
Oracle Solaris on SPARC (64-bit)
Solaris FC commands: cfgadm, luxadm, fcinfo, mpathadm
Solaris Multipathing (MPXIO)
FC Tape, Arrays


This document will provide:

1 - Links to troubleshooting, problem solving and How-To information for common MPxIO issues.

2 - Basic data needed to begin working the issue.

3 - Additional resources such as public forums and “information Center” documents are also provided.


This document is a work in progress and continously updated as new documents are created.

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Troubleshooting Steps

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In this Document
Troubleshooting Steps
 Oracle Solaris Storage Multipathing MPxIO Overview
 Oracle Solaris 11.1 Administration: SAN Configuration and Multipathing
 Oracle Solaris 10 SAN Configuration and Multipathing Guide
 MPxIO Path Grouping, Load Balancing and Failover
 MPxIO Related Commands
 MPxIO config Files
 MPxIO Tuning
 MPxIO troubleshooting
 SAN Fibre Channel (FC) Storage Connectivity Issues
 MPxIO Internals

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