IBM(R) System Storage Multipath Subsystem Device Driver Version 1.6.2.1-0 README for Solaris Feb 5, 2007 ------------------------------------------------------------------------------- CONTENTS 1.0 About this README file 1.1 Who should read this README file 1.2 How to get help 2.0 Prerequisites for SDD 3.0 SDD change history 3.1 Defects Fixed 3.1.1 Common 3.1.2 ESS defects 3.1.3 SVC defects 3.1.4 DS8000 defects 3.1.5 DS6000 defects 3.2 New Features 3.3 Feature Details 3.4 Known issues 3.5 Correction to User's Guide 4.0 User license agreement for IBM device drivers 4.1 Background / Purpose 4.2 Definitions 4.3 License grant 4.4 Responsibilities 4.5 Confidential information 4.6 Limitation of liability 4.7 Termination 4.8 Representations and warranties 4.9 General provisions 4.10 Appendix A 5.0 Notices 6.0 Trademarks and service marks ------------------------------------------------------------------------------- 1.0 About this README file Welcome to IBM Multipath Subsystem Device Driver (SDD). This README file contains the most recent information about the IBM Multipath Subsystem Device Driver, Version 1 Release 6 Modification 2 Level 1-0 (SDD 1.6.2.1-0) for Solaris. IBM recommends that you go to the following Web site to get the most current information about this release of SDD: http://www.ibm.com/servers/storage/support/software/sdd.html You should carefully review the following information available through the website: 1. The most current README file. This will contain corrections to this readme file, corrections to the SDD User's Guide, and other documentation updates discovered since this copy of the README was prepared. 2. The Multipath SDD User's Guide. Because SDD can be installed in so many different environments / configurations, detailed information about each environment is placed in the appropriate chapter of the Multipath SDD Users Guide. The 'Summary of Changes' section of the SDD Users' Guide can help you quickly determine if the latest changes affect you. 3. The Flashes. As we become aware of any information that is likely to impact a broad set of our customers, Flashes are prepared and posted on this site. You should review this section periodically to see any new Flashes that have been posted since your last review. For prerequisites information, be sure to look in the Multipath SDD User's Guide as well as the prerequisites section of this readme file for the latest updates. 1.1 Who should read this README file This README file is intended for storage administrators, system programmers, and performance and capacity analysts. The information in this file only applies to customers who run: 1. DS8000 2. DS6000 3. SAN Volume Controller 4. ESS 1.2 How to get help Go to the following Web site for SDD technical support and for the most current SDD documentation and support information: http://www.ibm.com/servers/storage/support/software/sdd/ Go to the following Web site for the IBM ESS Open Systems support: http://www.ibm.com/servers/storage/disk/ess/ Go to the following Web site for IBM TotalStorage DS8000 support: http://www.ibm.com/servers/storage/disk/ds8000/index.html Go to the following Web site for IBM TotalStorage DS6000 support: http://www.ibm.com/servers/storage/disk/ds6000/index.html Go to the following Web site for IBM System Storage SAN Volume Controller support: http://www.ibm.com/servers/storage/support/software/sanvc/ Call one of the following numbers to obtain nontechnical or administrative support, such as hardware and software orders, hardware maintenance, services contract of entitlement, and invoices: .For commercial or state and local support operations: 1-877-426-6006 (Listen to the voice prompts) .For business partner support operations: 1-800-426-9990 .For federal government support operations: 1-800-333-6705 ------------------------------------------------------------------------------- 2.0 Prerequisites for SDD ------------------------------------------------------------------------------- 3.0 SDD Change History =============================================================================== 3.1 Defects Fixed 3.1.1 Common 1. Added retries of inquiries during path healtcheck (probing cycle) to avoid marking a path DEAD due to transient errors. 2. Fixed negative selection counts or negative error counts for 'datapath query adapter' and 'datapath query device' output 3. Fixed alignment of 'datapath query adapter' output for adapters with long name. 4. Fixed alignment of 'datapath query adaptstats' and 'dataapath query devstats' output. 5. Collect essmap and portmap information in SDD data collection script 'sddgetdata'. 6. Fix format command panic found in 32 bit SDD 1.6.1.0-2 and 1.6.2.0-1 7. Fix vpath devices not created after reboot found in 1.6.2.0-1 and 1.6.2.0-2 3.1.2 ESS defects None 3.1.3 SVC defects None 3.1.4 DS8000 defects 1. Fix incorrect lun size in datapath query essmap 3.1.4 DS6000 defects 1. Fix incorrect lun size in datapath query essmap =============================================================================== 3.2 New Features 1. Support Jumpstart installation of SDD on Solaris 9 and 10 2. Support x64 based servers for Solaris 10 3. Automatically reconfigure SDD after each reboot =============================================================================== 3.3 Feature Details Please refer to SDD User's Guide for the new datapath options =============================================================================== 3.4 Known Issues 1. sddgetdata on SDD 1.6.1.0-2 fails to collect SDD trace data SDD trace collection script /opt/IBMsdd/bin/sddgetdata has a typo in setting up the 'time' variable To fix the script, change the line from time=`date +'m%d_5/9/06M%S'` to time=`date +'%Y%m%d_%H%M%S'` 2. System may panic if AMCC/JNI HBA driver configuration parameter, TargetOfflineEnable, is set to 1 (default). This applies for JNI HBA driver 5.3.0.x or later. AMCC/JNI adapters have a configuration parameter, TargetOfflineEnable, which enables target offline when target port fails. By default, TargetOfflineEnable is set to 1. SDD requires this feature to be disabled to avoid some rare system panics. Users should modify the AMCC/JNI configuration file (/kernel/drv/jnic146x.conf) to disable this feature by setting TargetOfflineEnable=0. 3. Uninstalling SDD may hang on a single CPU system This problem only occurs with SDD 1.6.0.7 or SDD 1.6.0.8 on a single CPU system. Workaround: Please follow the procedure below to uninstall SDD 1.6.0.7 or SDD 1.6.0.8 on a single CPU system: a. delete file /kernel/drv/sparcv9/vpathdd if the system is running on a 64 bit kernel or delete file /kernel/drv/vpathdd if the system is running on a 32 bit kernel b. reboot the system c. run "pkgrm IBMsdd" to remove SDD 1.6.0.7 or SDD 1.6.0.8 package ================================================================================= 3.5 Correction to User's Guide 1. Procedure to exclude LUN(s) from being configured by SDD: a. Determine the Lun Identifier(s) of the LUN(s) to be excluded. b. Add the list of Lun Identifier(s) to the /etc/vpathexcl.cfg with one Lun Identifier per line. c. Run "cfgvpath -r" to reconfigure SDD. Vpath devices associated with the Lun Identifiers in the /etc/vpathexcl.cfg file will be removed. Subsequent SDD configuration will always exclude those Luns associated with the Lun Identifier listed in /etc/vpathexcl.cfg Note: By removing a Lun Identifier from the /etc/vpathexcl.cfg, SDD reconfiguration will create the vpath device for that lun again. Procedure To determine Lun Identifier(s) of the LUN(s) After SDD configuration which is done automatically after SDD installation, run "showvpath -l". The Lun Identifier will show under the Serial Number e.g. Following the extract from the output of "showvpath -l" vpath47: Serial Number : 13014712201 Lun Identifier: 6005076303FFC0590000000000002201 c4t0d1s2 /devices/pci@0,0/pci1022,7450@b/pci1077,101@4/sd@0,1:c,raw c4t3d1s2 /devices/pci@0,0/pci1022,7450@b/pci1077,101@4/sd@3,1:c,raw c5t0d1s2 /devices/pci@0,0/pci1022,7450@b/pci1077,101@4,1/sd@0,1:c,raw c5t1d1s2 /devices/pci@0,0/pci1022,7450@b/pci1077,101@4,1/sd@1,1:c,raw Note: Special consideration during SDD upgrade During SDD upgrade, /etc/vpathexcl.cfg will be replaced and the lun exclusion list will be lost. In order to retain the exclusion list after SDD upgrade, User should copy the existing /etc/vpathexcl.cfg to a new file say /etc/vpathexcl.cfg.sav BEFORE installing the new SDD package. After installing the new SDD package, user should copy the backup file /etc/vpathexcl.cfg.sav to replace /etc/vpathexec.cfg and rerun "cfgvpath -r" to exclude the luns again. 2. "datapath query portmap" only displays the status of slice 'c'. For example in the following output, row for vpath1 displays state of vpath1c and so on. For SDD 1.6.2.0-1 or later, the disk column will show slice 'c'. BAY-1(B1) BAY-2(B2) BAY-3(B3) BAY-4(B4) ESSID DISK H1 H2 H3 H4 H1 H2 H3 H4 H1 H2 H3 H4 H1 H2 H3 H4 ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD BAY-5(B5) BAY-6(B6) BAY-7(B7) BAY-8(B8) H1 H2 H3 H4 H1 H2 H3 H4 H1 H2 H3 H4 H1 H2 H3 H4 ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD FCA30 vpath1 ---- ---- ---- Y--- ---- ---- ---- ---- ---- ---- Y--- ---- ---- ---- ---- ---- 1301471 vpath2 ---- ---- --Y- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- --Y- ---- 13AADZA vpath3 ---Y ---- ---- ---- ---y ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- FCA30 vpath4 ---- ---- ---- Y--- ---- ---- ---- ---- ---- ---- Y--- ---- ---- ---- ---- ---- Y = online/open y = (alternate path) online/open O = online/closed o = (alternate path) online/closed N = offline n = (alternate path) offline - = path not configured PD = path down Note: 2105 devices' essid has 5 digits, while 1750/2107 device's essid has 7 digits. -------------------------------------------------------------------------------- 4.0 User license agreement for IBM device drivers NOTICE: PLEASE READ THIS AGREEMENT CAREFULLY BEFORE USING THE PROGRAM AND DOCUMENTATION. IBM(R) WILL ONLY LICENSE THIS PROGRAM AND DOCUMENTATION TO YOU IF YOU FIRST ACCEPT THE TERMS OF THIS AGREEMENT. BY USING THE PROGRAM AND DOCUMENTATION, YOU AGREE TO ABIDE BY THESE TERMS AND APPLICABLE COPYRIGHT LAWS. IBM LIMITS YOUR ACCEPTANCE OF THE PROGRAM AND DOCUMENTATION TO THE TERMS OF THIS AGREEMENT. The Program and Documentation is owned by International Business Machines Corporation or one of its subsidiaries (IBM) or IBM suppliers, and is copyrighted and licensed, not sold. IBM does not transfer title to this Program and Documentation to you. The terms of this Agreement apply to any additional license copy of the Program or Documentation that IBM authorizes you to make. The term "Program" means the original program and all whole or partial copies of it, including portions merged with other programs. A Program consists of machine-readable instructions and related license materials. Under this Agreement, IBM provides you with a license to use the Program and Documentation only. 4.1 Background/Purpose IBM provides certain device drivers and Documentation under this Agreement. The device drivers and library support that IBM provides under this Agreement are in object code form only. Appendix A of this Agreement indicates the server platforms that are supported. IBM uses announcements to withdraw service for device drivers, feature codes, etc., on hardware and/or operating system platforms. IBM reserves the right to change the Programs or Documentation at any time without prior notice. 4.2 Definitions Derivative Work is a work based on a preexisting work, including a compilation. A Derivative Work prepared without the authorization of the copyright owner of the preexisting work would constitute a copyright infringement. Documentation is the Program documentation that IBM provides to you as follows: IBM Subsystem Device Driver and README files. Object Code is machine-readable instructions in Object Code format. It is substantially in binary form and directly executable by a computer after suitable processing but without the intervening steps of compilation or assembly. Program is the IBM Subsystem Device Driver in Object Code form. 4.3 License grant IBM grants you a revocable, nontransferable, nonexclusive, worldwide, paid-up copyright license to: 1. Use the Program and Documentation solely on the platforms and with the applicable IBM devices described in Appendix A of this Agreement. 2. Maintain one copy of the Program for backup purposes only. Your license to the Programs and Documentation terminates when you no longer rightfully possess the IBM device described in Appendix A. This Agreement does not grant you any right or license to prepare Derivative Works of the Program and Documentation. Nothing in this Agreement grants either party any rights or licenses under any patents or patent applications regardless of whether use and/or execution of the software licensed herein may be construed to practice one or more patents. 4.4 Responsibilities You agree to use the Program and Documentation only with the IBM device described in Appendix A of this Agreement. You will not: 1. otherwise copy, display, transfer, adopt, modify or distribute in any form, the Program and Documentation, except as IBM expressly authorizes in the Documentation 2. decompile, disassemble, reverse engineer, or in any way modify the Program or Documentation 3. sell, rent, lease, sublicense the Program or Documentation, unless explicitly permitted by law without the possibility of contractual waiver; and sublicense or assign the license for the Program and Documentation 4.5 Confidential information Any information which either party may disclose to the other party shall not be deemed to be confidential. If the parties require the exchange of confidential information, such exchange will be made under a separate written confidentiality agreement. 4.6 Limitation of liability IN NO EVENT SHALL IBM OR ITS SUPPLIERS BE LIABLE FOR COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, LOSS OF DATA, LOST PROFITS, BUSINESS INTERRUPTION OR ANY SPECIAL, INCIDENTAL, INDIRECT, CONSEQUENTIAL, PUNITIVE OR EXEMPLARY DAMAGES , EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES AND NOTWITHSTANDING THE FAILURE OF ESSENTIAL PURPOSE OF ANY REMEDY. You acknowledge that circumstances may arise where, because of a default on IBM's part or other liability, you may be entitled to recover damages. Under any such circumstances, you agree that in each such instance, regardless of the basis on which you are entitled to claim damages, IBM shall be liable only up to an amount equal to five thousand U.S. dollars ($5,000). This limitation will not apply to claims relating to bodily injury (including death), and damage to real property and personal property. 4.7 Termination Termination for Cause. If either party fails to perform its obligations hereunder, then the other party may terminate this Agreement or the license granted hereunder for cause. Effect of Termination. The rights and licenses granted to you under this Agreement shall automatically terminate upon the termination of this Agreement. 4.8 Representations and warranties THE PROGRAM AND DOCUMENTATION IS PROVIDED ON AN "AS IS" BASIS. IBM MAKES NO REPRESENTATION OR WARRANTY, EXPRESS OR IMPLIED, WITH RESPECT TO THE PROGRAM AND DOCUMENTATION.IBM DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. THE ENTIRE RISK ARISING OUT OF THE USE OR PERFORMANCE OF THE PROGRAM AND DOCUMENTATION REMAINS WITH YOU. 4.9 General Provisions Transfer. You may transfer possession of the program and its media and Documentation to another pay with the transfer of the IBM device described in Appendix A on which such Program is used with. If you do so, you must give the other party a copy of these terms and provide all user documentation to that party, and such party must first agree to such terms before it uses the Program and Documentation. Upon transfer of the Program and Documentation, you must destroy all your copies of the Program and Documentation. Severability. If any provision of this Agreement is found to be illegal or unenforceable, the remainder of this Agreement shall continue in full force and effect provided that the Agreement still effectuates the parties' original intent. Governing Law and Jury Trial Waiver. This Agreement shall be governed by the laws of the State of New York, excluding its conflict of law rules. Each party hereby agrees to waive its rights to a trial by jury. Modifications. No modification to this Agreement, nor any waiver of any rights, shall be effective unless agreed to in a writing that is executed by both parties, and the waiver of any breach or default of this Agreement shall not constitute a waiver of any other right or of any subsequent breach or default. Limitations on Legal Actions. Neither party will bring a legal action against the other more than two (2) years after the cause of action arose. Both parties will act in good faith to resolve disputes. Order of Precedence. In the event of a conflict in terms between this Agreement and another agreement, the terms of this Agreement shall take precedence and prevail over such other terms. Entire Agreement. This Agreement constitutes the entire and exclusive agreement between the parties with respect to this subject matter. All previous discussions and agreements with respect to this subject matter are superseded by this Agreement. 4.10 Appendix A This Appendix indicates: Which specific IBM devices the Program and Documentation are to be used with: IBM devices: IBM Enterprise Storage Server (ESS) IBM devices: IBM TotalStorage DS8000 IBM devices: IBM TotalStorage DS6000 IBM devices: IBM System Storage SAN Volume Controller CONTINUING WITH THIS INSTALLATION CONSTITUTES YOUR ACCEPTANCE OF THE TERMS OF THE ABOVE 'USER LICENSE AGREEMENT FOR IBM DEVICE DRIVERS' ------------------------------------------------------------------------------- 5.0 Notices This information was developed for products and services offered in the U.S.A. IBM may not offer the products, services, or features discussed in this document in other countries. Consult your local IBM representative for information on the products and services currently available in your area. Any reference to an IBM product, program, or service is not intended to state or imply that only that IBM product, program, or service may be used. Any functionally equivalent product, program, or service that does not infringe any IBM intellectual property right may be used instead. However, it is the user's responsibility to evaluate and verify the operation of any non-IBM product, program, or service. IBM may have patents or pending patent applications covering subject matter described in this document. The furnishing of this document does not give you any license to these patents. You can send license inquiries, in writing, to: IBM Director of Licensing IBM Corporation North Castle Drive Armonk, NY 10504-1785 U.S.A. For license inquiries regarding double-byte (DBCS) information, contact the IBM Intellectual Property Department in your country or send inquiries, in writing, to: IBM World Trade Asia Corporation Licensing 2-31 Roppongi 3-chome, Minato-ku Tokyo 106, Japan The following paragraph does not apply to the United Kingdom or any other country where such provisions are inconsistent with local law: INTERNATIONAL BUSINESS MACHINES CORPORATION PROVIDES THIS PUBLICATION "AS IS" WITHOUT WARRANTY OF ANY KIND,EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do not allow disclaimer of express or implied warranties in certain transactions, therefore, this statement may not apply to you. Any references in this information to non-IBM Web sites are provided for convenience only and do not in any manner serve as an endorsement of those Web sites. The materials at those Web sites are not part of the materials for this IBM product and use of those Web sites is at your own risk. This information could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes will be incorporated in new editions of the publication. IBM may make improvements and/or changes in the product(s) and/or the program(s) described in this publication at any time without notice. IBM may use or distribute any of the information you supply in any way it believes appropriate without incurring any obligation to you. Licensees of this program who wish to have information about it for the purpose of enabling: (i) the exchange of information between independently created programs and other programs (including this one) and (ii) the mutual use of the information which has been exchanged, should contact: IBM Corporation Information Enabling Requests Dept. DZWA 5600 Cottle Road San Jose, CA 95193 U.S.A. Such information may be available, subject to appropriate terms and conditions, including in some cases, payment of a fee. The licensed program described in this document and all licensed material available for it are provided by IBM under terms of the IBM License Agreement for Non-Warranted Programs. Any performance data contained herein was determined in a controlled environment. Therefore, the results obtained in other operating environments may vary significantly. Some measurements may have been made on development-level systems and there is no guarantee that these measurements will be the same on generally available systems. Furthermore, some measurement may have been estimated through extrapolation. Actual results may vary. Users of this document should verify the applicable data for their specific environment. Information concerning non-IBM products was obtained from the suppliers of those products, their published announcements or other publicly available sources. IBM has not tested those products and cannot confirm the accuracy of performance, compatibility or any other claims related to non-IBM products. Questions on the capabilities of non-IBM products should be addressed to the suppliers of those products. This information contains examples of data and reports used in daily business operations. To illustrate them as completely as possible, the examples include the names of individuals, companies, brands, and products. All of these names are fictitious and any similarity to the names and addresses used by an actual business enterprise is entirely coincidental. =============================================================================== IBM agreement for licensed internal code +---- Read Before Using -----------------------------------------------+ |IMPORTANT | | | |YOU ACCEPT THE TERMS OF THIS IBM LICENSE AGREEMENT FOR MACHINE CODE BY| |YOUR USE OF THE HARDWARE PRODUCT OR MACHINE CODE. PLEASE READ THE | |AGREEMENT CONTAINED IN THIS BOOK BEFORE USING THE HARDWARE PRODUCT.SEE| |IBM agreement for licensed internal code. | | | +----------------------------------------------------------------------+ You accept the terms of this Agreement(3) by your initial use of a machine that contains IBM Licensed Internal Code (called "Code"). These terms apply to Code used by certain machines IBM or your reseller specifies (called "Specific Machines"). International Business Machines Corporation or one of its subsidiaries ("IBM") owns copyrights in Code or has the right to license Code. IBM or a third party owns all copies of Code, including all copies made from them. If you are the rightful possessor of a Specific Machine, IBM grants you a license to use the Code (or any replacement IBM provides) on, or in conjunction with, only the Specific Machine for which the Code is provided. IBM licenses the Code to only one rightful possessor at a time. Under each license, IBM authorizes you to do only the following: 1. execute the Code to enable the Specific Machine to function according to its Official Published Specifications (called "Specifications"); 2. make a backup or archival copy of the Code (unless IBM makes one available for your use), provided you reproduce the copyright notice and any other legend of ownership on the copy. You may use the copy only to replace the original, when necessary; and 3. execute and display the Code as necessary to maintain the Specific Machine. You agree to acquire any replacement for, or additional copy of, Code directly from IBM in accordance with IBM's standard policies and practices. You also agree to use that Code under these terms. You may transfer possession of the Code to another party only with the transfer of the Specific Machine. If you do so, you must 1) destroy all your copies of the Code that were not provided by IBM, 2) either give the other party all your IBM-provided copies of the Code or destroy them, and 3) notify the other party of these terms. IBM licenses the other party when it accepts these terms. These terms apply to all Code you acquire from any source. Your license terminates when you no longer rightfully possess the Specific Machine. Actions you must not take You agree to use the Code only as authorized above. You must not do, for example, any of the following: 1. Otherwise copy, display, transfer, adapt, modify, or distribute the Code (electronically or otherwise), except as IBM may authorize in the Specific Machine's Specifications or in writing to you; 2. Reverse assemble, reverse compile, or otherwise translate the Code unless expressly permitted by applicable law without the possibility of contractual waiver; 3. Sublicense or assign the license for the Code; or 4. Lease the Code or any copy of it. ------------------------------------------------------------------------------- 6.0 Trademarks and service marks The following terms are trademarks of the International Business Machines Corporation in the United States, other countries, or both: AIX AS/400 Enterprise Storage Server HACMP/6000 IBM IBM logo iSeries Netfinity NetVista Operating System/400 pSeries RS/6000 Seascape SP System/360 System/370 System/390 The eServer logo TotalStorage Versatile Storage Server xSeries zSeries z/Architecture z/OS Solaris is a registered trademark of Sun Microsystems, Inc. Java and all Java-based trademarks are trademarks of Sun Microsystems, Inc. in the United States, other countries, or both. UNIX is a registered trademark of The Open Group in the United States and other countries. Other company, product, and service names may be trademarks or service marks of others. ------------------------------------------------------------------------------- (C) Copyright IBM Corporation 2000, 2002, 2003, 2004. All rights reserved.