IBM(R) SUBSYSTEM DEVICE DRIVER 1.3.3.16 README FOR AIX™ --------------------------------------------------------------------------- CONTENTS 1.0 About this README file 1.1 Who should read this README file 1.2 How to get help 2.0 SDD defects and fixes 2.1 Defect Details 3.0 Support notice for AIX 4.2.1 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 Subsystem Device Driver (SDD). This README file contains the most recent information about the IBM Subsystem Device Driver, Version 1 Release 3 Modification 3 Level 16 (SDD 1.3.3.16) for AIX. IBM recommends that you print and review the contents of this README file and the Subsystem Device Diver User’s Guide before installing and using SDD. You can find the most current documentation and support information on the Web site: www.ibm.com/storage/support/techsup/swtechsup.nsf/support/sddupdates/ 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 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: www.ibm.com/storage/support/techsup/swtechsup.nsf/support/sddupdates/ 1.3 Go to the following Web site for the IBM ESS Open Systems support: www.storage.ibm.com/hardsoft/products/ess/supserver.htm 1.4 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 SDD defects and fixes The following table lists the defects that are corrected in this release. Note: The defect numbers listed in the table are for IBM internal reference use only. ================================================================ Description ================================================================ You should always check the following web page for the latest information about AIX SDD, especially the information displayed when you click Flashes under the Information heading: http://ssddom02.storage.ibm.com/techsup/webnav.nsf/support/sdd 1859 The output format of 'lquerypr' cmd with -V option has changed. 1878 Log the error when a vpath device state is changed to LIMBO (that means a vpath has no active paths available). 1881 Check the device LIMBO state when unconfiguring to prevent removing a vpath device in LIMBO state. 1888 When the storage is powered off where a primary volume group resides, a perfomance problem found in sddsrv during path reclamation can cause a slow mirrored volume group failover problem. A fix for sddsrv provides improvement for this kind of failover. 1893 Sddsrv can place a path in DEAD state when a test command fails with ENOCONNECT, which is caused by warmstart in the bay. You should retry the test command to avoid erroneously placing the path into DEAD state. 1937 AIX 51F (and later) changed the output format of 'uname -L' command, causing a failure in the SDD code that generates unique persistent reserve keys for each LPAR. A code fix is applied to handle the old and new output formats. 1962 The Sddsrv path reclamation thread should ignore testing all DEAD paths that are attached to an ESS port that has not been recovered. 1968 An ESS SCSI device may get into the fStopSign condition if the device "tagged queuing" option is enabled, or, in the case of HACMP node fallover, if some commands are pending on the activeq and a PrOut cmd is issued to that device from another initiator. To bring the SCSI device out of this fStopsign condition, SDD needs to issue a LUN_RESET command to the device. The failure symptom is that HACMP takeover fails. 2014 Veritas VxDMP/SDD coexistence feature fails because of a code bug in SDD driver. 2010 The SDD device change method is changed to "chgvpath", which does not require a device to be unconfigured and reconfigured when the change device 'pv' attribute is invoked. This improves the performance in large SAN configuration environment when LVM commands, such as make volume group with SDD vpath device, are called. 2038 If you invoke Device/Adapter Performance functions from the web link, the sddsrv daemon has a bug that leaves the vpath0 device in the OPEN state forever. This can cause vpath0 to lose persistent reserve during HACMP node fallover. 2059 The sddsrv daemon should only collect hdisks information that SDD supports. Open/access other hdisks will cause an LVM error during system reboot. 2070 The sddsrv daemon must be shutdown gracefully. Otherwise, it can leave SDD paths(hdisks) in the START state. This will cause following path open failures and leave the paths in INVALID SDD state. 2.1 Details The following section provides additional information, as applicable, about the defects and fixes listed previously. ================================================================ Details ================================================================ 1968 The solution to this problem requires fixes for 3 components. They are ESS, HACMP, and SDD driver. For ESS and HACMP code requirements, please check the following SDD web site for the latest information: www.ibm.com/storage/support/techsup/swtechsup.nsf/support/sddupdates/ 2070 The solution to this problem requires a fix from HACMP. For HACMP requirements, please check the following SDD web site for the latest information: www.ibm.com/storage/support/techsup/swtechsup.nsf/support/sddupdates/ ------------------------------------------------------------------------ 3.0 Support notice for AIX 4.2.1 The SDD-AIX 4.2.1 package (ibmSdd_421.rte) will not be enhanced after version 1.3.0.1. You will not receive future fixes for this package. ------------------------------------------------------------------------ 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: 1. Which specific IBM devices the Program and Documentation are to be used with: IBM devices:IBM Enterprise Storage Server™ (ESS) 2. For what specific server platforms the Program and Documentation are to be used on and for what software requirements apply to the use of the Program and Documentation reference the ESS Open Systems Support Web page,located at: www.storage.ibm.com/hardsoft/products/ess/supserver.htm 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. 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. 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. --------------------------------------------------------------------------- 6.0 Trademarks and service marks The following terms are trademarks of the International Business Machines Corporation in the United States, or other countries, or both: AIX Enterprise Storage Server IBM Netfinity RS/6000 TotalStorage Microsoft, Windows, Windows NT, and the Windows logo are registered trademarks of Microsoft Corporation. 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. All rights reserved.