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This courseware is copyrighted © 2011 gtslearning. No part of this courseware or any training material supplied by gtslearning International Limited to.

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Presentation on theme: "This courseware is copyrighted © 2011 gtslearning. No part of this courseware or any training material supplied by gtslearning International Limited to."— Presentation transcript:

1 This courseware is copyrighted © 2011 gtslearning. No part of this courseware or any training material supplied by gtslearning International Limited to accompany the courseware may be copied, photocopied, reproduced, or re-used in any form or by any means without permission in writing from a director of gtslearning International Limited. Violation of these laws will lead to prosecution. All trademarks, service marks, products, or services are trademarks or registered trademarks of their respective holders and are acknowledged by the publisher. All gtslearning products are supplied on the basis of a single copy of a course per student. Additional resources that may be made available from gtslearning may only be used in conjunction with courses sold by gtslearning. No material changes to these resources are permitted without express written permission by a director of gtslearning. These resources may not be used in conjunction with content from any other supplier. If you suspect that this course has been copied or distributed illegally, please telephone or email gtslearning. CompTIA Server+ Certification 5.2 Troubleshooting Scenarios

2 Objectives Diagnose problems relating to hardware components and the boot process Troubleshoot disk storage and RAID Troubleshoot network problems and use diagnostic utilities, such as ping and nslookup Identify and resolve common NOS problems 5.2 Troubleshooting ScenariosSlide 2

3 Troubleshooting Power Mains power failure requires UPS then backup generator For PSU, check fuses then test unit with multimeter or PSU tester Alternatively swap out PSU 5.2 Troubleshooting ScenariosSlide 3

4 Troubleshooting POST POST not running – What has changed? – Check cabling and connectors – Strip out adapters / modules – Use diagnostics – Check jumpers have not been incorrectly set – CMOS battery POST error codes OS loader failures 5.2 Troubleshooting ScenariosSlide 4

5 Using Diagnostics 5.2 Troubleshooting ScenariosSlide 5

6 Causes of Component Failure Overheating ECC / Parity Memory Errors Troubleshooting Incompatible Components – Processor Appears Not To Work – New Memory Not Recognized 5.2 Troubleshooting ScenariosSlide 6

7 Troubleshooting Storage Symptoms – Bad sectors – Data corruption – Cannot mount drive / access logical drive – Constant LED activity – Noise Issues – Hard Disk Not Accessible – Configuration – File System Structure Disk Utilities 5.2 Troubleshooting ScenariosSlide 7

8 Troubleshooting RAID Detecting failed drive / array degraded Replace missing disk as quickly as possible Rebuilding can reduce performance though Cache / cache battery failures 5.2 Troubleshooting ScenariosSlide 8

9 Troubleshooting Disk Performance It’s not always the disk itself... – Network not disks? – Background processes? – RAID cache tuning? – Low disk space? – Protocol / software problem? – Drive / controller firmware? – Paging? – Malware / faulty process? 5.2 Troubleshooting ScenariosSlide 9

10 Troubleshooting Network Problems 5.2 Troubleshooting ScenariosSlide 10

11 Troubleshooting Cabling What has changed? Is it really a hardware problem? Diagnostic LEDs – check configuration Driver update Check switch configuration (port / VLAN settings) Substitute patch cable Test permanent link 5.2 Troubleshooting ScenariosSlide 11

12 Troubleshooting IP Configuration Verify configuration (ipconfig / ifconfig) Check DHCP Test connectivity with ping – Loopback – Workstation address – Default gateway (or other local host) 5.2 Troubleshooting ScenariosSlide 12

13 Troubleshooting Routing Issues Check router Investigate local routing table Use tracert to test path between hosts 5.2 Troubleshooting ScenariosSlide 13

14 Troubleshooting Name Resolution Different OS’s / networks perform name resolution in different ways HOSTS file Check DNS server is available Check DNS server configuration with nslookup Troubleshoot NetBIOS / WINS with nbtstat 5.2 Troubleshooting ScenariosSlide 14

15 Troubleshooting Services Protocol / application specific issues Check logs Use Protocol Analyzer Verify open ports with netstat 5.2 Troubleshooting ScenariosSlide 15

16 Other Network Issues Troubleshooting Firewall Issues Troubleshooting Service Provider Issues 5.2 Troubleshooting ScenariosSlide 16

17 Troubleshooting Software Problems (1) Drivers Services Blue Screens Runaway Processes and Memory Leaks Slow OS Performance Shut Down 5.2 Troubleshooting ScenariosSlide 17

18 Troubleshooting Software Problems (2) Print Problems System Log Patch Update Failure Permissions Encryption 5.2 Troubleshooting ScenariosSlide 18

19 Review Diagnose problems relating to hardware components and the boot process Troubleshoot disk storage and RAID Troubleshoot network problems and use diagnostic utilities, such as ping and nslookup Identify and resolve common NOS problems 5.2 Troubleshooting ScenariosSlide 19

20 Labs Lab 14 Troubleshooting 5.2 Troubleshooting ScenariosSlide 20


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