Brocade Fabric OS v6.4.3f Release Notes v1.0

Close with Code Change in Fabric OS v6.4.3
Fabric OS v6.4.3f Release Notes v1.0 Page 61 of 149
Defect ID: DEFECT000383769
Technical Severity: High
Summary: Switch clears all pending exchange upon receive busy status with "abort task set" causing
missing blocks on tape.
Symptom: Missing blocks on tapes written when tape pipelining is enabled.
Feature: FCIP
Function: Emulation
Probability: Low
Found in Release: FOS6.4.1_fcoe
Service Request ID: 682259
Defect ID: DEFECT000384682
Technical Severity: High
Summary: Downgrade from FOS v7.0.x to v6.4.x leads to F port connectivity loss. It does not recover
with bouncing the port and requires a switch power cycle.
Symptom: After downgrade from FOS v7.0.x to FOS v6.4.x with "-s" in certain sequence, preinstall
script may fail and leave switch in a state Storage device loses connectivity to fabric and
does not reconnect. Switch port stays stuck at G-port and requires switch reset to regain
connectivity.
Workaround: Don't do firmwaredownload with -s option by default
Feature: Field Escalation
Function: ASIC Driver
Probability: High
Found in Release: FOS6.4.2
Service Request ID: 699169
Defect ID: DEFECT000386528
Technical Severity: High
Summary: Switch panic upon detecting SRAM parity error on 7500 and FR4-18i
Symptom: Parity error in ASIC is very rare and may be observed after a long up time. This specific
parity error in 7500/FR4-18i SRAM cannot be recovered by software refresh, thus the
attempted refresh generated switch panic.
Feature: Field Escalation
Function: ASIC Driver
Probability: Low
Found in Release: FOS6.4.2
Service Request ID: 705301,704563,721929
Defect ID: DEFECT000388762
Technical Severity: High
Summary: Switch upgraded from FOS 6.3.x to 6.4.x in IM2/IM3 mode over run zone daemon memory
space.
Symptom: Zoned panic after upgrade, when a remote domain goes out of fabric.
Workaround: To avoid this problem the customer can just do a hafailover when the firmware is
completely upgraded.
Feature: Field Escalation
Function: Fabric Services
Probability: Low
Found in Release: FOS6.4.1
Service Request ID: 709913