由于缆线故障、在光纤通道目标HBA上检测到链路中断

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Category:: fas-systems<a>2008503752</a><a>scsitearget.slifct.linkBreak</a>

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适用场景

ONTAP 9
FCP

问题描述

FC目标端口链路—不稳定/关闭。

EMS NetApp上会记录以下事件：

[?] Wed Oct 14 09:22:49 MDT [host1: fct_tpd_work_thread_0: scsitarget.slifct.linkBreak:error]: Link break detected on Fibre Channel target HBA 4c with event status 1 , topology type 1, status1 0x0, status2 0x0.

[?] Wed Oct 14 09:22:50 MDT [host1: fct_tpd_work_thread_0: scsitarget.hwpfct.linkUp:notice]: Link up on Fibre Channel target adapter 4c.

Tue Mar 05 15:19:28 0530 [NetApp: fct_tpd_work_thread_0: scsitarget.slifct.wqeError:debug]: FC port 3a has a WQE processing failure of type SLI_ELS_REQ, command PLOGI, subtype x0, with status of 3 and an extended status x4 for NPIV port 0. 
 Tue Mar 05 15:19:29 0530 [NetApp: fct_tpd_work_thread_0: scsitarget.slifct.wqeError:debug]: FC port 3a has a WQE processing failure of type SLI_ELS_REQ, command PLOGI, subtype x0, with status of 3 and an extended status x1a for NPIV port 0.
 Tue Mar 05 15:26:48 0530 [NetApp: fct_tpd_work_thread_0: scsitarget.slifct.linkBreak:error]: Link break detected on Fibre Channel target HBA 3a with event status 1 , topology type 1, status1 0x0, status2 0x0. 
 Tue Mar 05 15:26:59 0530 [NetApp: fct_tpd_work_thread_0: scsitarget.slifct.wqeError:debug]: FC port 3a has a WQE processing failure of type SLI_ELS_REQ, command PLOGI, subtype x0, with status of 3 and an extended status x1a for NPIV port 0."

可以执行以下步骤来隔离问题描述：
- 检查控制器端口状态、如果Tx 信号功率低、请更换SFP。
- 检查已连接交换机端口的SFP状态、如果交换机端口Tx 电源低、请更换SFP。
- 如果两个FC端的SFP Tx功率均正常、但任一端的SFP Rx功率均较低、请更换FC缆线。
- 如果涉及配线板、请对链路组件进行故障排除。
- 如果两端的Rx信号均较低、请检查两者之间是否存在配线板、并尝试使用其他端口进行测试

示例：
cluster1::> fcp adapter show -node host1 -adapter 4c -instance (network fcp adapter show)

Node: host1 Adapter: 4c Description: Fibre Channel Target Adapter 4c (Emulex LPe16000 (LPe16004), rev. 13, 16G) Physical Protocol: fibre-channel Maximum Speed: 16 Administrative Status: up Operational Status: online Extended Status: ADAPTER UP Host Port Address: b10140 Firmware Revision: 11.2.219.4 Data Link Rate (Gbit): 16 Fabric Established: true Fabric Name: xx:xx:xx:xx:xx:xx:xx:xx Connection Established: ptp Is Connection Established: true Mediatype: ptp Configured Speed: auto Adapter WWNN: aa:aa:aa:aa:aa:aa:aa:aa Adapter WWPN: bb:bb:bb:bb:bb:bb:bb:bb Switch Port: switch1:1/88 Form Factor Of Transceiver: SFP Vendor Name Of Transceiver: EMULEX Part Number Of Transceiver: AFBR-57F5MZ-ELX Revision Of Transceiver: Serial Number Of Transceiver: AC1544J02X7 FC Capabilities Of Transceiver: 4,8,16 (Gbit/sec) Vendor OUI Of Transceiver: 00:17:6a Wavelength In Nanometers: 850 Date Code Of Transceiver: 15:10:26 Validity Of Transceiver: true Connector Used: LC Encoding Used: 64B66B Is Internally Calibrated: true Received Optical Power: 56.2 (uWatts) Is Received Power In Range: true SPF Transmitted Optical Power: 610.0 (uWatts) Is Xmit Power In Range: true