由于交换机间链路故障、无法访问卷事件
适用场景
- ONTAP 9
- SnapMirror活动同步(SMA)
- Brocade FC 交换机
- 两个站点通过交换机间链路(ISL)连接
- VMware ESXi
问题描述
- VMware显示间歇性丢失对卷的访问事件：
Lost access to volume 63864940-ca00f732-af03-0025b511000e (example_ds1) due to connectivity issues. Recovery attempt is in progress and outcome will be reported shortly.Successfully restored access to volume 63864940-ca00f732-af03-0025b511000e (example_ds1) following connectivity issues.- EMS会记录仅影响集群另一站点的主机的光纤通道问题，如所记录的中所示
S_ID：
[cluster1_node1: fct_tpd_work_thread_0: fcp.io.status:debug]: STIO Adapter:2b IO WQE failure, Handle 0x1, Type 8, S_ID: 16210D, VPI: 130, OX_ID: 46D8, Status 0x3 Ext_Status 0x16
[cluster1_node1: fct_tpd_thread_1: fcp.io.status:debug]: STIO Adapter:2b, found hung cmd:0xfffff8042aea04b0(state=5, flags=0x0, ctio_sent=1/1,RecvExAddr=0x14c7, OX_ID=0x4947, RX_ID=0xffff,SID=0x16210d, Cmd[2A], req_q_free:0)
[cluster1_node2: fct_tpd_thread_1: fcp.io.status:debug]: STIO Adapter:2b, found hung cmd:0xfffff8042af79d28(state=5, flags=0x0, ctio_sent=1/1,RecvExAddr=0x16b0, OX_ID=0x4fb7, RX_ID=0xffff,SID=0x16190b, Cmd[2A], req_q_free:0)
[cluster2_node1: fct_tpd_thread_1: fcp.io.status:debug]: STIO Adapter:2b, found hung cmd:0xfffff804254b0478(state=5, flags=0x0, ctio_sent=1/1,RecvExAddr=0x1666, OX_ID=0x44ce, RX_ID=0xffff,SID=0xc2109, Cmd[2A], req_q_free:0)
[cluster2_node1: fct_tpd_thread_1: fcp.io.status:debug]: STIO Adapter:2b, found hung cmd:0xfffff80425401d10(state=5, flags=0x0, ctio_sent=1/1,RecvExAddr=0x1568, OX_ID=0x4291, RX_ID=0xffff,SID=0xc2109, Cmd[2A], req_q_free:0)
[cluster2_node2: fct_tpd_work_thread_0: fcp.io.status:debug]: STIO Adapter:2b IO WQE failure, Handle 0x1, Type 8, S_ID: 16210D, VPI: 130, OX_ID: 4273, Status 0x3 Ext_Status 0x11
- 一台交换机显示ISL接收功率低：
RX Power: -6.1 dBm (245.0uW)TX Power: 0.4 dBm (1093.9 uW)- ISL另一端的电源正常：
RX Power: -2.8 dBm (523.9uW)TX Power: -0.2 dBm (949.3 uW)- 如果主机上的VM通过ISL访问另一站点上的数据存储库、则生产会受到影响