EMS报告由于存储端SFP出现故障、在FC端口上检测到链路中断

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2024年10月7日
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Category:: fabric-interconnect-and-management-switches

Specialty:: hw

Last Updated:: Invalid Date

适用场景

ONTAP 9
小型可插拔(SFP)
Cisco交换机

问题描述

EMS 日志报告光纤通道目标适配器上的链路轮盖事件：

Thu May 25 01:23:26 AEST [Netapp: fct_tpd_work_thread_0: scsitarget.ispfct.linkBreak:error]: Link break detected on Fibre Channel target adapter 0e. Firmware status code status1 0x2, status2 0x7, and status4 0x0. Thu May 25 01:30:08 AEST [Netapp: fct_tpd_work_thread_0: scsitarget.hwpfct.linkUp:notice]: Link up on Fibre Channel target adapter 0e.

FC目标端口状态在sysconfig -a 下显示为联机：

slot 0: Fibre Channel Target Host Adapter 0e (QLogic 8324 (8362) rev. 2, <ONLINE>) Firmware rev: 8.7.0 Flash rev: 7.0.3 Host Port Addr: ae0700 FC Nodename: 50:0a:09:80:80:84:xy:xx (500axxxxxxxxxxxx) FC Portname: 50:0a:09:81:80:84:yx:yy (500axxxxxxxxxxxx) Connection: PTP, Fabric Switch Port: sw:1/8 SFP Vendor Name: AVAGO SFP Vendor P/N: AFBR-57F5MZ-NA3 SFP Vendor Rev: 01 SFP Serial No.: AC1804Jxxxx SFP Connector: LC SFP Capabilities: 4, 8, 16 Gbit/S

FC目标端口在下显示link disconnected sysconfig -a

slot 0: Fibre Channel Target Host Adapter 0d (QLogic 8324 (8362) rev. 2, <LINK DISCONNECTED>) Firmware rev: 8.9.0 Flash rev: 7.0.3 Host Port Addr: 000000 FC Nodename: 50:0a:09:80:80:84:xy:xx (500axxxxxxxxxxxx) FC Portname: 50:0a:09:80:80:84:xy:xx (500axxxxxxxxxxxx) Connection: No link Switch Port: Unknown SFP Vendor Name: FINISAR CORP. SFP Vendor P/N: FTLF8529P4BCVAN1 SFP Vendor Rev: A SFP Serial No.: P17BX7G SFP Connector: LC SFP Capabilities: 4, 8, 16 Gbit/Sec

根据fcp-adapter.xml 日志、Rx和Tx功率处于最佳范围。
在连接到受影响端口的Cisco交换机上、交换机端口 Tx电源显示为不适用。

[2023-05-31 17:09:33] Tx Power N/A -- 1.70 dBm -13.00 dBm -1.30 dBm -9.00 dBm [2023-05-31 17:09:33] Rx Power -2.19 dBm 3.00 dBm -15.90 dBm 0.00 dBm -11.90 dBm

根据show int brief 日志以及在show interface counters 下为交换机端口生成的ITW 错误，交换机端口处于error disabled 状态：

show int brief-

fc1/8 is down (Error disabled - bit error rate too high)

show interface counters-

[2023-05-31 17:09:32] System Errorcode : 0x4042001e MAC Bit error exceeded threshold [2023-05-31 17:09:32] Error Type : Warning [2023-05-31 17:09:32] PhyPortLayer : Fibre Channel [2023-05-31 17:09:32] Port(s) Affected : fc1/8 [2023-05-31 17:09:32] Error Description : MAC Bit error exceeded threshold [ITW]

我们可以在show logging log 下看到交换机端口上的端口轻拍条目：

[2023-05-31 17:09:40] 2023 May 22 09:42:24 sw %PORT-5-IF_DOWN_ADMIN_DOWN: %$VSAN 10%$ Interface fc1/8 is down (Administratively down) CS1A-naclu01-02_e0e [2023-05-31 17:09:40] 2023 May 22 09:42:27 sw %PORT-5-IF_UP: %$VSAN 10%$ Interface fc1/8 is up in mode F CS1A-naclu01-02_e0e 023 May 25 01:29:55 sw %PORT-5-IF_DOWN_ADMIN_DOWN: %$VSAN 10%$ Interface fc1/8 is down (Administratively down) xxxx [2023-05-31 17:09:40] 2023 May 25 01:30:08 sw %PORT-5-IF_UP: %$VSAN 10%$ Interface fc1/8 is up in mode F xxxx

可以执行以下步骤进一步隔离问题描述：

重新拔插存储和交换机端口上的电缆/SFP。
执行端到端电缆测试(包括配线板)，如果电缆有故障，请更换电缆。
如果缆线没有故障、请先更换交换机端的SFP、因为Tx电源为NA。

注：要隔离交换机端口不是问题描述电缆、可将其移至交换机端的未使用/空闲端口、并查看链路是否正常工作。

如果问题描述仍然存在，则在这种情况下将更换存储端SFP。