ONTAP FC 端口显示低接收功率 (RX) 值

最后更新
另存为PDF

Views:: 126

Visibility:: Public

Votes:: 0

Category:: fabric-interconnect-and-management-switches

Specialty:: san

Last Updated:

适用于

ONTAP
FCP
Brocade SAN 交换机
Cisco SAN 交换机

问题描述

根据 fcp adapter show 输出，FC 端口在 ONTAP 上显示低 RX 值：

::> fcp adapter show -instance -node nodename -adapter 0a [...] Received Optical Power: 241.3 (uWatts) Is Received Power In Range: false SFP Transmitted Optical Power: 600.4 (uWatts) Is Xmit Power In Range: true DDM Status: 30 Is Xmit Disabled: false  Is Xmit In Fault: false Is Receiver In LOS: false

FCP-Adapter.xml 登录 ONTAP 报告低 Rx 功耗，表明问题在 ONTAP 上游：

以下风险在 AIQM 中报告-
- RISK: SFP receive power of the SFP connected to netapp port 9c is below the recommended value.

• SFP 两端都正常。Tx 和 Rx 均在两端的推荐范围内。

在 EMS 日志中，我们观察到 link break detected 和 link up 错误以及 AEN 错误：

Wed Apr 12 03:42:08 +0200 [nxx-0x: fct_tpd_work_thread_0: scsitarget.slifct.linkBreak:error]: Link break detected on Fibre Channel target HBA 2c with event status 1 , topology type 1, status1 0x0, status2 0x0.

Wed Apr 12 03:42:09 +0200 [nxx-0x: fct_tpd_work_thread_0: scsitarget.hwpfct.linkUp:notice]: Link up on Fibre Channel target adapter 2c.

fcp.io.status:debug]: STIO Adapter:0e AEN 0x8048 (RECV_ERROR) MboxStatus1 0x1002 MboxStatus2 0xa1

从 Brocade 交换机的 sfpshow 日志：

RX Power: -1.9 dBm (647.5uW) TX Power: -4.6 dBm (349.3 uW)

`show interface brief`logs 连接到受影响的 NetApp 端口的 Cisco 交换机端口状态报告为"errDisabled"

----------------------------------------------------------------------------------------- Interface Vsan Admin Admin Status SFP Oper Oper Port Logical Mode Trunk Mode Speed Channel Type Mode (Gbps) ----------------------------------------------------------------------------------------- fc1/27 3 auto off errDisabled swl -- -- -- --

show int transceiver detail 输出在 Cisco 交换机上报告低 Tx 功率，表明交换机端 sfp 存在问题：

SFP Diagnostics Information: ---------------------------------------------------------------------------- Alarms Warnings High Low High Low ---------------------------------------------------------------------------- Temperature 40.16 C 75.00 C -5.00 C 70.00 C 0.00 C Voltage 3.33 V 3.63 V 2.97 V 3.46 V 3.13 V Current 0.00 mA 12.00 mA 4.00 mA 11.20 mA 4.80 mA Tx Power -40.00 dBm 5.00 dBm -12.20 dBm 2.00 dBm -8.20 dBm Rx Power -0.49 dBm 5.00 dBm -15.20 dBm 2.00 dBm -11.20 dBm Transmit Fault Count = 0 ---------------------------------------------------------------------------- Note: ++ high-alarm; + high-warning; -- low-alarm; - low-warning

Cisco 交换机端口的 Rx 和 Tx 值显示为 optimal，端口状态为 up。

fc2/42 is up [... ....] Temperature 38.33 C, Voltage 3.38 V, Current 6.54 mA, TxPower -6.08 dBm, RxPower -3.11 dBm

交换机端的端口已切换，但 NetApp 端 FC 端口的 Rx 功率仍然很低。

Tue May 28 23:35:39 2024:type=update:id=10.0.xx.xyz@pts/0:user=admin:cmd=configure terminal ; interface fc2/42 (SUCCESS) Tue May 28 23:35:57 2024:type=update:id=10.0.xx.xyz@pts/0:user=admin:cmd=Interface fc2/42 state updated to down Tue May 28 23:35:57 2024:type=update:id=10.0.xx.xyz@pts/0:user=admin:cmd=configure terminal ; interface fc2/42 ; shutdown (SUCCESS) Tue May 28 23:41:05 2024:type=update:id=10.0.xx.xyz@pts/0:user=admin:cmd=Interface fc2/42 state updated to up Tue May 28 23:41:05 2024:type=update:id=10.0.xx.xyz@pts/0:user=admin:cmd=configure terminal ; interface fc2/42 ; no shutdown (SUCCESS)

System Manager 中适配器的低吞吐量
作为故障排除的一部分，可以执行以下步骤：
- ONTAP 上的低 RX 通常表示发射端（交换机/配线面板）的硬件故障
- 进行电缆测试和配线面板检查，以确认电缆是否正常
- 将电缆交换到交换机端的另一个可用工作端口，查看问题是否依然存在
- 清洁电缆和两个 SFP 上的连接

VMware 服务器频繁进入 Not responding 状态。
以下是存储端的错误 -

[?] Tue May 20 01:35:58 +0530 [cx-labs-bgl-aff-03: fct_tpd_work_thread_0: fcp.io.status:debug]: STIO Adapter:1a IO WQE failure, Handle 0x0, Type 8, S_ID: 3002xx, VPI: 3, OX_ID: 4D20, Status 0x3 Ext_Status 0x1d [?] Tue May 20 01:36:13 +0530 [cx-labs-bgl-aff-03: fct_tpd_work_thread_0: fcp.io.status:debug]: STIO Adapter:1a IO WQE failure, Handle 0x0, Type 8, S_ID: 3002xx, VPI: 3, OX_ID: 4051, Status 0x3 Ext_Status 0x1d

在主机端观察到性能问题。以下是主机端报告的错误：

2025-05-23T06:38:20.431Z cpu85:2098417)ScsiCore: 1823: Power-on Reset occurred on naa.600a098038314a71692454716472xxxx 2025-05-23T06:38:23.249Z cpu24:2098418)ScsiDeviceIO: 4115: Cmd(0x45d9d4a9b6c8) 0x8a, CmdSN 0x800e002e from world 2125982 to dev "naa.600a098038314a71692454716472xxxx" failed H:0x0 D:0x2 P:0x0 Valid sense data: 0x6 0x29 0x0 2025-05-23T06:38:41.558Z cpu30:3060886 opID=f36de402)UserDump: 2823: hostd-worker: Userworld(hostd-worker) coredump complete.