PowerPath and CLARiiON Storage Systems | EMC 300-000-978 REV A03

5

PowerPath Administration on Solaris

PowerPath and CLARiiON Storage Systems

PowerPath events or actions that entail LUN trespasses (for example, SP failovers or powermt restore commands) can cause the Solaris disk driver to log warning and/or error messages. You can ignore these messages, as PowerPath intercepts them and hides them from the application sending the I/O.

For more information on CLARiiON configuration requirements, refer to the EMC Installation Roadmap for CX-Series and FC-Series Storage Systems and the EMC Host Connectivity Guide for Sun Solaris, available on the Powerlink website.

The Host Connectivity Guide describes how to edit the /kernel/drv/sd.conf file to suppress ODS device overlap error messages. Note that this workaround is invalid for Sun Cluster 2.2 configurations.

Ensuring a Sufficient Stack Size

If you install an application that resets the stack size (for example, VxVM or VxFS) after you install PowerPath, make sure that lwp_default_stksize and rpcmod:svc_run_stksize are set to at least 0x6000 on a Solaris 7, 8, or 9 system, and at least 0x4000 on a Solaris 2.6 system. Other applications may reset the stack sizes to values insufficient for PowerPath.

Booting a Host With Built-In Fibre Channel Ports

If you boot a Solaris host with all socal host adapters to storage system volumes disconnected or dysfunctional, PowerPath will not configure any socal host adapter paths. After physically restoring the

5-2	PowerPath for UNIX Installation and Administration Guide

Image 74

EMC 300-000-978 REV A03 manual PowerPath and CLARiiON Storage Systems, Ensuring a Sufficient Stack Size

Contents

PowerPath for Unix Version Copyright 1997-2003 EMC Corporation. All rights reserved Contents Chapter PowerPath Administration on Solaris Chapter Configuring a PowerPath Boot Device on SolarisChapter Removing PowerPath Integrating/ Upgrading PowerPath Into an Existing AAM Appendix a Files Changed By PowerPath Appendix B Customer Support Tables Tables Tables Viii Preface Audience and Prerequisites Preface Related Documentation Options in command line syntax Command line arguments when used in textArguments used in examples of command line EMC uses the following type style conventions in this guide Sales and Customer Service Contacts Xiv Installing PowerPath Choose a Convenient Time Before You InstallObtain Up-To-Date Information Locate Your License Key Prepare the Host and Storage System Configure HBA drivers Failure to do so could result in loss or corruption of data For sh, enter Prepare For a Clustered EnvironmentFor example To find a unique major number Installing PowerPath Start the installation program. Enter You see the following prompt Enter y and press Enter You are prompted to confirm the major numberPress Enter to confirm the major number Manager VCS Agent Upgrading to PowerPath Uninstalling the Earlier Version Upgrading From PowerPath 3.0.x or Enter 1 and press Enter Enter package base directory default /opt,? You are prompted to confirm the major number EMC Troubleshooting the Upgrade If files are corrupted On the Host After You InstallRegister PowerPath Reboot the Host Remove You should see output like the following Verify the PowerPath InstallationIf you installed the PowerPath Volume Manager VCS Agent You should see output similar to this Modinfo grep -i emc Applications to Use ReconfigureEmcpower Devices Installing the PowerPath Volume Manager VCS Agent Do you want to install these conflicting files y, n, ?, q Error Messages You should output similar to this PowerPath for Unix Installation and Administration Guide PowerPath in a Cluster Environment PowerPath in a Legato 5.1 or later AAM Cluster PowerPath in a Legato 5.1 or later AAM Cluster Installing PowerPath A New AAM Cluster PowerPath in a Legato 5.1 or later AAM Cluster PowerPath in a Sun Cluster Installing PowerPath in a New Sun Cluster PowerPath in a Sun Cluster PowerPath in a Sun Cluster Stop cluster services on the node. Enter boot PowerPath in a Veritas Cluster Server Cluster Installing PowerPath A New VCS Cluster Hatype -list grep EMC Integrating Upgrading PowerPath Into an Existing VCS Cluster Recognize Configuring VCS toPowerPath Volume Manager Resources Editing main.cf to Include EMCTypes.cf Add the following line to the beginning Setting Major and Minor Numbers Minor Number PowerPath for Unix Installation and Administration Guide Configuring a PowerPath Boot Device On Solaris Introduction Configuring a PowerPath Native Device as the Boot Device Partitioning the Boot Device Creating Filesystems Usr/sbin/installboot /usr/platform/sun4u/lib/fs/ufs/bootblk\ At the % prompt, enter the following command and press Example After modification Modifying OpenBootSetting Up the Boot Alias Moving the Boot Device to an emcpower Device Output is similar to the following Recovery Procedure Reboot the host. Enter boot Removing PowerPath Control Over a Boot Device An example of a boot path is Reboot -- -r Removing PowerPath Before Removing PowerPath Removing PowerPath Screen displays information like this Removal process saves the following files Enter the following command to remove these filesEmcpvcleanup issues the following warning Reboot the host. Enter reboot -- -r Removing the PowerPath Volume Manager VCS Agent Removal of EMCvg was successful PowerPath for Unix Installation and Administration Guide PowerPath Administration on Solaris Ensuring a Sufficient Stack Size PowerPath and CLARiiON Storage SystemsBooting a Host With Built-In Fibre Channel Ports Rebooting and Custom Settings Boot Device Support R1/R2 Boot Failover Support R1/R2 Supported Configurations R1/R2 Boot Procedure Forms Device NamingNative Devices Block device- /dev/dsk/c # t # d # s # Naming Convention Pseudo DevicesSelecting a Device Device Naming Function Native Device Pseudo Device Volume Managers Reconfiguring PowerPath Devices Online Enter quit, to end the format process Screen displays the following information Dynamic Reconfiguration Adding an HBA to a PowerPath Configuration Removing an HBA From a PowerPath Configuration Command returns output like the following Powermt remove hba=# Upgrading to Solaris 9 with Solaris Live Upgrade Upgrading Solaris Troubleshooting Powercf Configuration Utility File Location Executing powercf Emcp.conf File PowerPath device entries in emcp.conf Arguments Files Changed By PowerPath Files Created or Modified by PowerPath Installation Etc Basedir/EMCpower/bin Basedir/EMCpower/driver PowerPath for Unix Installation and Administration Guide Kernel/drv Basedir/EMCpower/lib Files Created or Modified by PowerPath Installation Basedir/EMCpower/man/man1 This directory contains the PowerPath man pages Basedir/EMCpower/scriptsThis directory contains PowerPath scripts Usr/bin Solaris Files Modified by PowerPath Installation Installation programs add the following line to Basedir/VRTSvcs/EMC Files Created or Modified by VCS Agent InstallationEtc/VRTSvcs/conf/config Basedir/VRTSvcs/bin/EMCvg PowerPath for Unix Installation and Administration Guide Customer Support Overview of Detecting and Resolving Problems Figure B-1Problem Detection and Resolution Process Troubleshooting the Problem Before Calling the Customer Support Center Documenting the Problem Reporting a New Problem Sending Problem Documentation FTP PowerPath for Unix Installation and Administration Guide Symbols Index VCS Veritas Volume Manager and emcpower devices PowerPath for Unix Installation and Administration Guide