Troubleshoot TEMS Communication Problems in Multiple TCP/IP Stacks Environments

Transcription

1 Troubleshoot TEMS Communication Problems in Multiple TCP/IP Stacks Environments By Nicola Catrambone and Francesco Marinucci Version 1.0

2

3 Copyright Notice Copyright IBM Corporation All rights reserved. May only be used pursuant to a Tivoli Systems Software License Agreement, an IBM Software License Agreement, or Addendum for Tivoli Products to IBM Customer or License Agreement. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, o r translated into any computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual, or otherwise, without prior written permission of IBM Corporation. IBM Corporation grants you limited permission to make hard copy or other reproductions of any machine -readable documentation for your own use, provided that each such reproduction shall carry the IBM Corporation copyright notice. No other rights under copyright are granted without prior written permission of IBM Corporation. The document is not intended for production and is furnished as is without warranty of any kind. All warranties on this document are hereby disclaimed, including the warranties of merchantability and fitness for a particular purpose. U.S. Government Users Restricted Rights -- Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corporation. Trademarks IBM, the IBM logo, Tivoli, the Tivoli logo, AIX, Cross -Site, NetView, OS/2, Planet Tivoli, RS/6000, Tivoli Certified, Tivoli Enterprise, Tivoli Enterprise Console, Tivoli Ready, and TME are trademarks or registered trademarks of International Business Machines Corporation or Tivoli Systems Inc. in the United States, other countries, or both. Lotus is a registered tradem ark of Lotus Development Corporation. Microsoft, Windows, Windows NT, and the Windows logo are trademarks of Microsoft Corporation in the United States, other countries, or both. UNIX is a registered trademark of The Open Group in the United States and oth er countries. C-bus is a trademark of Corollary, Inc. in the United States, other countries, or both. PC Direct is a trademark of Ziff Communications Company in the United States, other countries, or both and is used by IBM Corporation under license. ActionMedia, LANDesk, MMX, Pentium, and ProShare are trademarks of Intel Corporation in the United States, other countries, or both. For a complete list of Intel trademarks, see SET and the SET Logo are tradem arks owned by SET Secure Electronic Transaction LLC. For further information, see Java and all Java-based trademarks and logos are trademarks or registered trademarks of Sun Microsystems, Inc. in the United States and other countries. Other company, product, and service names may be trademarks or service marks of others. Notices References in this publication to Tivoli Systems or IBM products, programs, or services do not imply that they will be available in all countri es in which Tivoli Systems or IBM operates. Any reference to these products, programs, or services is not intended to imply that only Tivoli Systems or IBM products, programs, or services can be used. Subject to valid intellectual property or other legally protectable right of Tivoli Systems or IBM, any functionally equivalent product, program, or service can be used instead of the referenced product, program, or service. The evaluation and verification of operation in conjunction with other products, excep t those expressly designated by Tivoli Systems or IBM, are the responsibility of the user. Tivoli Systems or IBM may have patents or pending patent applications covering subject matter 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 the IBM Director of Licensing, IBM Corporation, North Castle Drive, Armonk, New York , iii

4 U.S.A. iv

5 v

6

7 About the Tivoli Field Guides Tivoli developers, testers, and architects vii

8 viii

9 Table of Contents CUSTOMER ENVIRONMENT... 1 PROBLEM DESCRIPTION NO DATA ON TEP FROM Z/OS MANAGED AGENTS KM2CTINI ERROR MESSAGE WHEN ACCESSING HUB TEMS FROM OMEGAMON II FOR MVS... 2 ROOT CAUSE ANALYSIS STALE REMOTE TEMS EPHEMERAL ENTRIES IN HUB GLB MULTIPLE TCP/IP STACKS INCORRECT DNS SPECIFICATIONS ONE-TO-MANY DNS RESOLUTION OF A HOSTNAME TO IP ADDRESS... 5 REMEDY REMOVE ALL EPHEMERAL CONFIGURATIONS EXPLICIT IDENTIFICATION OF THE TCP/IP STACK DNS CORRECTIONS USE KDEB_INTERFACELIST... 8 ENVIRONMENT HEALTH CHECK... 9 ix

10 5.1 ITMSUPER OUTPUT LOGS WITH COMMUNICATION TRACES NEEDED CHECK TO BE DONE... 9 x

11 Troubleshoot TEMS Communication Problems in Multiple TCP/IP Stack Environments 1 Customer Environment 2 Problem Description 2.1 No data on TEP from z/os managed agents 1

12 2.2 KM2CTINI error message when accessin g Hub TEMS from Omegamon II for MVS 2

13 Figure 2: KM2CTINI error message 3 Root Cause Analysis 3

14 3.1 Stale remote TEMS ephemeral entries in HUB GLB 3.2 Multiple TCP/IP Stacks 4

15 3.3 Incorrect DNS Specifications 3.4 One-to-many DNS resolutions of a hostname to IP address 4 Remedy 4.1 Remove all EPHEMERAL configurations 5

16 4.2 Explicit identification of the TCP/IP stack 6

17 TCPIP TCPIP_USERID= * TCPIP_USERID=TCPIP 7

18 4.3 DNS Corrections NSLOOKUP hhhh Where hhhh is the z/os Lpar hostname The IP address returned from the DNS should match the IP address obtained above in section If DNS definitions are inconsistent, you may update the host s file on the Windows TEMS to include the host name of the incorrect Lpar and the primary IP address. The host s file is contained in C:\Windows\System32\drivers\etc Very important: Once all the z/os LPAR DNS definitions have been corrected and match the expected IP addresses identified in section 4.2.2, there is no need to implement the action below, 4.4 KDEB_INTERFACELIST. 4.4 Use KDEB_INTERFACELIST 8

19 5 Environment Health Check 5.1 ITMSuper output 5.2 Logs with communication traces 5.3 Needed check to be done 9

20 10