由于交换机上的主机SFP出现故障、ESXi主机上出现路径冗余降级警报

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Category:: ontap-9

Specialty:: san<a>2009993916</a>

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适用场景

ONTAP 9.
FC
ESXi
Brocade SAN交换机

问题描述

多个NetApp LUN出现主机连接问题、并且路径降级、并且NetApp FC LUN会重新断开连接。
ESXi主机在vCenter上的VMware端报告以下警报-

This email is to notify you that an alarm has been triggered in your vCenter:

[Warning] Alarm alarm.StorageConnectivityAlarm on Host hostabc.xxx.com

because Path redundancy to storage device naa.600a098xxxxxx46c3f515xxxxxxxx degraded. Path vmhba2:C0:xx:xx0 is down. Affected datastores: xxx-NetApp-xyz..

Alarm name alarm.StorageConnectivityAlarm

Description alarm.StorageConnectivityAlarm

Target Host hostabc.xxx.com

Status Warning (previous status: Normal)

Triggered time 04/03/2024 01:27:05 PM

Path redundancy to storage device naa.600a098xxxxxx46c3f515xxxxxxxx degraded. Path vmhba2:C0:T8:L142 is down. Affected datastores: xxx-NetApp-xyz. Warning 04/04/2024, 11:12:40 AM

存储端的LUN处于联机状态并已映射。
FC端口均已启动、 Rx、Tx值处于最佳范围。
频繁出现EMS消息"fcp.io.status：State=5" EMS中报告stio hung cmd事件且状态为5：

Wed Apr 03 13:02:34 +0200 [NetApp: fct_tpd_thread_5: fcp.io.status:debug]: STIO Adapter:0g, found hung cmd:0xfffff808ed70a770(state=5, flags=0x0, ctio_sent=1/1,RecvExAddr=0x1217d0, OX_ID=0x125, RX_ID=0xffff,SID=0x4105xx, Cmd[2A], req_q_free:3501) Wed Apr 03 14:41:09 +0200 [NetApp: fct_tpd_thread_4: fcp.io.status:debug]: STIO Adapter:0h, found hung cmd:0xfffff808ed1d8b38(state=5, flags=0x0, ctio_sent=1/1,RecvExAddr=0x11d570, OX_ID=0x735, RX_ID=0xffff,SID=0x4105xx, Cmd[2A], req_q_free:1321)

注意： "state=5：DATAOUT等待 - 表示FC目标正在等待在接受写入请求后从主机返回的内容；但是、在预期超时值内未返回任何内容。"

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SAN交换机上的主机连接端口的状态为Laser_FLT，表示SFP出现故障。

Index Slot Port Address Media Speed State Proto ============================================================ 5 1 5 701400 id N16 Laser_Flt FC