Terminal server issue affecting serial console access on FAS9000 systems

Applies to

NetApp FAS9000
ONTAP 9.13.1P11

Issue

• Unable to log into the Service Processor (SP) via SSH on both nodes.
• Unable to access the Serial Console (RJ45 and mini-USB) on both nodes.
• SP reboot temporarily resolves the issue, but it reoccurs after some time.
• Controller and Boot Device replacements were performed, but the issue persisted.
• The SP system log shows the following garbled characters:

Waiting for PIDS:  1234W}mwmowｿwk_ﾛ.
^R
W}mwmowｿwk_[ｻｿ・ｻｷW}[W・ｿwk_ﾛｯ・_[溿W}mwmowｿwk_ｫ・ｻｷW}[W・ｿwk_ﾛｯ・_[溿W}mwmowｿwk_ｫ・ｻｷWﾟ[W・ｿw{_ﾛｯ・_[溿W}・ｽﾝｿwk_ｫ・ｻｷWﾟ[Wｽｽｿw{_ﾛｯ・_ｫoWｭｵｽﾝｿwk_ｵﾟ・ｻｷWﾟ[Wｽｽｿw{_ﾛｯ・_ｫoWｭｵｽﾝｿwk_ｵﾟ・ｻｷWﾟ[Wｽｽｿw{_ﾛｯ・_ｫoWｭｵｽﾝｿwk_ｵﾟ・ｻｷWﾟ[Wｽｽｿw{_ﾛｯ・_Wｭｵｽﾝｿwk_ｵﾟ・ｻｷWｷuﾕ・w{_ﾛｯ・_Wｭｵｽﾝｿwk_ｵﾟ・ｻｷWｷuﾕ・w{_ﾛｯ・_Wｭｵｽﾝｿwk_ｵﾟ・ｻｷWｷuﾕ・w{_ﾛｯ・_Wｭｵｽﾝｿwk_ｵﾟ・ｻｷW[・w{_ﾛｯ・_WｭｵｽﾝｿwｭU・・ｻｷW[・w{_ﾛｯ・_Wkmo・ｿwｭW・・ｻｷW[・w・ｻｭ・Wkmo・ｿwｭW・錞ｻｷW・ﾗ・w・ｻｭ・Wkm飼ｿw・・錞ｻｷW・ﾗ・w・k・ﾕｫk・ｿw{・錞ｻｷW・ﾗ・w・k・}ｫｷ[・ｿwｯ・錞ｻｷWｽﾟﾝ・w・k・}ｫｷ[・ｿwｯ・錞ｻｷW錝・w・k・_ｵﾛuｿwm錞ｻｷW錝・w・k・Uﾛuｿwm錞ｻｷW錝・w・k・ﾛuｿwmﾛｻｷW錝・w・kｯﾕﾛuｿwmﾛｻｷW鍰・w・kｯﾗﾛuｿwmﾛｻｷW鍰・wk昞Wｿw[ｻｻｷWｿwk昞Wｿw[ｻｻｷWｿwk昞WｿwｫｷWｿwk{ﾛUｿwｫｷWｿwk{ﾛUｿwｵﾛﾟﾛﾕwk{ﾛUｿwmｻﾛﾕwk・UｿwmｻﾛﾕwｭoWmｷﾛﾕwｭoW}ｷmﾛW・wk・}璟ｻﾕﾟﾟwk・ 璟ｻﾕﾟﾟwk・・璟ｷﾟﾟwｭｽ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭ・ｿ・ﾟﾟwｭTerminated
・ｿ・ﾟﾟwｭWu{mmo}w]Wo.
・ｿ・ﾟﾟwｭWﾝ{mmo}w]Woｯ侚ptime: 210d1h3m18s
FM halt: Time 18147538954 ms, 41639405194360010 cycles
System powering down...

================ Log #1 end time Thu Apr 17 03:58:09 2025