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Brocade G620 switch unresponsive after HA reboot with FOS 9.1.1

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Category:
fabric-interconnect-and-management-switches
Specialty:
brocade
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Applies to

  • Brocade G620 switch
  • Fabric OS (FOS) version 9.1.1
  • SAN environments

Issue

Brocade G620 switch became unresponsive after an HA reboot. SSH attempts to the switch management IP time out with no response. The switch was previously stable and became inaccessible immediately after the reboot. Console log shows firmware integrity check failure and boot loop.
Example:
Validating integrity of firmware on root filesystem
Please wait...
..5...../fabos/rbin/icl_qsfp_fwdl_check
Firmware integrity check failed.
System is rebooting...
reboot: Restarting system
Switch does not appear in fabricshow output and ISLs/ports from other switches show missing connections.

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