BrocadeÂ® Product Training

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Learning Objectives and Topics 2 Describe troubleshooting processes and best practices ‣ Gather, Analyze & Solve (GAS) ‣ Predictive SAN problems Identify and categorize problems and associated commands that fall into the following categories: Timeout/ Sluggishness; Segmented Fabric; Port Configuration Issue; Missing device; Marginal link Discuss SAN troubleshooting approaches Describe switchshow & errshow Discuss supportshow & some associated commands Introduce hardware diagnostics © 2005 Brocade Communications Systems, Incorporated. Revision CFP261-02-2005 Chapter 8 - 2 © 2005 Brocade Communications Systems, Incorporated. Revision CFP261-02-2005 Chapter 8 - 2
Troubleshooting - Divide and Conquer 3 P o w e r O n S w i t c h P Light/ O Signal S T - Power On Test LINK LOGIN FABRIC DEVICES Char Sync/ Word Sync S p e e d N e g Hardware Diags/ Marginal Links Loop Init / Link Init F L O G I S E C U R I T Y ACL P L O G I N S Query/ Registr. Configuration/CLI Commands Portlog Analysis Device Exists In NS Device Exists In Remote NS Z O N I N G Troubleshooting Divide and Conquer Nx_port1 communicates with Nx_port2 L u n M a s k i n g D e v i c e D r i v e r s © 2005 Brocade Communications Systems, Incorporated. Revision CFP261-02-2005 Chapter 8 - 3 GATHER, ANALYZE, and SOLVE (GAS) represent the 3 main processes that flow throughout this course. We will GATHER, ANALYZE, and SOLVE and sometimes even PRESENT to make sure devices go through (GASP): Link Login Fabric Devices Connection occurred can see it in the fabric can see it (LIVE LONG FABRIC DEVICES) © 2005 Brocade Communications Systems, Incorporated. Revision CFP261-02-2005 Chapter 8 - 3
Page 1: Brocade ® 1 Product Training Diagn
Page 5 and 6: Generic SAN Problem Possible Causes
Page 7 and 8: Timeout/Sluggishness - (cont’d) L
Page 9 and 10: Segmented Fabric 9 Start What are t
Page 11 and 12: Port Configuration 11 Start What ar
Page 13 and 14: Missing Device Start 13 Does device
Page 15 and 16: Start at the Switch... Divide and C
Page 17 and 18: Brocade Support Department Procedur
Page 19 and 20: v3.1 supportshow 19 OS Fabric m
Page 21 and 22: v4.1 supportshow 21 OS Fabric m
Page 23 and 24: v4.1 supportshow (Cont’d) 23 Sys
Page 25 and 26: v3.x sw1:admin> diagshow Note: v4.x
Page 27 and 28: v3.x sw1:admin> portshow Note: v4.x
Page 29 and 30: portlog Entry Example 29 Port 6 D_I
Page 31 and 32: Telnet Interface Error Message Form
Page 33 and 34: v3.x Power-On Self-Test (POST) 33
Page 35 and 36: Hardware Diagnostic Tests For the F
Page 37 and 38: crossporttest Modes 37 With the s
Page 39 and 40: spinsilk 39 Full speed functi
Page 41 and 42: spinfab 41 Exercises E_Port connec
Page 43 and 44: loopporttest 43 Used to test NL_Po
Page 45 and 46: fporttest 45 Functional test of F
Page 47 and 48: porttest 47 Used to isolate proble
Page 49 and 50: v4.1:admin> porttest Command Exampl
Page 51 and 52: Probably Failing Modules, Cont. 51
Page 53 and 54:
Review Questions 1. Trunking proble
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