Brocade Communications Systems StoreFabric SN6500B Troubleshooting Manual page 20

1
TABLE 2
Common symptoms (Continued)
Symptom
License issues
LSAN is slow or times-out
Marginal link
No connectivity between host and storage
No connectivity between switches
No light on LEDs
Performance problems
Port cannot be moved
SCSI retry errors
SCSI timeout errors
Switch constantly reboots
Switch is unable to join fabric
Switch reboots during configup/download
Syslog messages
Trunk bounces
Trunk failed to form
User forgot password
4
Questions for common symptoms
Areas to check
Licensing
LSAN tagging
Links
Cables
SCSI timeout errors
SCSI retry errors
Zoning
Licensing
Fabric parameters
Segmentation
Virtual Fabrics
Zoning, if applicable
Links
Links
FCR LSAN tags
FCIP tunnels
Virtual Fabrics
Buffer credits
FCIP tunnel bandwidth
Links
HBA
Buffer credits
FCIP tunnel bandwidth
Rolling reboot detection
FIPS
Security policies
Zoning
Fabric parameters
Configuration file discrepancy
Hardware
SNMP management station
Cables are on same port group
SFPs
Trunked ports
Licensing
Cables are on same port group
SFPs
Trunked ports
Zoning
E_Port QoS configuration mismatch
Password recovery
Chapter or Document
Chapter 2, "General"
Chapter 2, "General"
Chapter 3, "Connectivity"
Chapter 3, "Connectivity"
Chapter 8, "ISL Trunking"
Chapter 9, "Zoning"
Fibre Channel over IP Administrator's
Guide
Chapter 2, "General"
Chapter 3, "Connectivity"
Chapter 7, "Virtual Fabrics"
Chapter 9, "Zoning"
Chapter 3, "Connectivity"
Chapter 3, "Connectivity"
Chapter 2, "General"
Fibre Channel over IP Administrator's
Guide
Chapter 7, "Virtual Fabrics"
Fibre Channel over IP Administrator's
Guide
Chapter 3, "Connectivity"
Chapter 8, "ISL Trunking"
Fibre Channel over IP Administrator's
Guide
Chapter 6, "Security"
Chapter 3, "Connectivity"
Chapter 7, "Virtual Fabrics"
Chapter 9, "Zoning"
Chapter 4, "Configuration"
Chapter 2, "General"
Chapter 6, "Security"
Chapter 8, "ISL Trunking"
Chapter 2, "General"
Chapter 3, "Connectivity"
Chapter 8, "ISL Trunking"
Chapter 9, "Zoning"
Chapter 6, "Security"
Fabric OS Troubleshooting and Diagnostics Guide
53-1002751-01