FC目标端口会出现故障并变为"link not connected"状态

适用场景

• ONTAP 9.x
• FCP

问题描述

• 在EMS下的FC目标端口上观察到间歇性链路中断事件、此事件后FC端口将自行重置：

Sun Nov 27 20:53:54 EST [NetApp: fct_tpd_work_thread_0: fcp.io.status:debug]: STIO Adapter:10a IO WQE failure, Handle 0xa, Type 8, S_ID: 11900, VPI: 3, OX_ID: 3F4, Status 0x3 Ext_Status 0x16
Sun Nov 27 22:04:06 EST [NetApp-05: fct_tpd_work_thread_0: scsitarget.slifct.linkBreak:error]: Link break detected on Fibre Channel target HBA 10a with event status 1 , topology type 1, status1 0x0, status2 0x0.
Sun Nov 27 22:04:24 EST [NetApp-05: fct_tpd_work_thread_0: scsitarget.hwpfct.linkUp:notice]: Link up on Fibre Channel target adapter 10a.
Sun Nov 27 22:04:31 EST [NetApp-05: fct_tpd_work_thread_0: scsitarget.slifct.wqeError:debug]: FC port 10a has a WQE processing failure of type SLI_ELS_REQ, command PLOGI, subtype x0, with status of 3 and an extended status x2 for NPIV port 0.
Sun Nov 27 22:04:49 EST [NetApp-05: fct_tpd_work_thread_0: scsitarget.hwpfct.errorReset:notice]: An error was encountered in the FC target driver on Fibre Channel target adapter 10a. The adapter will be automatically reset to clear the PLOGI failed for base port error (Status: 3 Extended status: 2 Index: 1) condition.
Sun Nov 27 22:04:49 EST [NetApp-05: fct_tpd_thread_10: fcp.io.status:debug]: STIO Adapter 10a resetting with 0 ITNs and 0 commands to drain
Sun Nov 27 22:04:49 EST [NetApp-05: fct_tpd_thread_10: scsitarget.fct.reset:notice]: Resetting Fibre Channel target adapter 10a.

• ASUP SYSCONFIG-A.XMLFC端口状态显示为 Link Not Connected

 slot 10: Fibre Channel Target Host Adapter 10a (Emulex LPe32000 (LPe32002) rev. 12, <LINK NOT CONNECTED>) Board Name: 111-03249 Serial Number: FC72662464 Firmware rev: 11.2.219.4 Host Port Addr: 000000 FC Nodename: 50:0a:09:80:80:44:6d:80 (500a098080446d80) FC Portname: 50:0a:09:83:a0:44:6d:80 (500a0983a0446d80) Connection: No link Switch Port: Unknown SFP Vendor Name: FINISAR CORP. SFP Vendor P/N: FTLF8532P4BCV-EM SFP Vendor Rev: A SFP Serial No.: PXQ1M94 SFP Connector: LC SFP Capabilities: 8, 16, 32 Gbit/Sec

• ASUP：FCP目标适配器TX电源在下的预期范围内 FCP-ADAPTER.XML

Received Optical Power   573.3 (uWatts)
SPF Transmitted Optical Power   798.0 (uWatts)

• ASUP：根据FCP-ADAPTER.XMLSFP Tx和Rx电源、FCP目标适配器的Rx电源与先前的ASUP相比有所下降 

最新：
Received Optical Power    415.8 (uWatts)
SPF Transmitted Optical Power    798.0 (uWatts)

上一步：
Received Optical Power    573.3 (uWatts)
SPF Transmitted Optical Power    798.0 (uWatts)

• 使用 ​​​​​​sfpshow 命令查看 所连接交换机端口上的Tx电源
• 交换机端口上的SFP Tx电源低

Sfpshow: ============= Port 12: ============= Identifier: 3 SFP Connector: 7 LC Transceiver: 6804404000000000 8,16,32_Gbps M5 sw Short_dist Encoding: 6 64B66B Baud Rate: 280 (units 100 megabaud) Length 9u: 0 (units km) Length 9u: 0 (units 100 meters) Length 50u (OM2): 3 (units 10 meters) Length 50u (OM3): 7 (units 10 meters) Length 62.5u:0 (units 10 meters) Length 50u (OM4): 10 (units 10 meters) Vendor Name: BROCADE Vendor OUI: 00:05:1e Vendor PN: 57-1000333-01 Vendor Rev: A Wavelength: 850 (units nm) Options: 083a Loss_of_Sig,Tx_Fault,Tx_Disable BR Max: 112 BR Min: 0 Serial No: JAF417120000GP0 RX Power: -1.0 dBm (797.7uW) TX Power: -3.7 dBm (430.8 uW)