由于未使用的 ISL 端口，在 ONTAP 9.11.1P5+ 升级后报告 ClusterIfIslDownWarn_Alert

• MetroCluster IP
• ONTAP 升级到 9.11.1P5 或更高版本
• NetApp CN1610
• Broadcom BES-53248 交换机
• NVIDIA SN2100 交换机
• Cisco 以太网交换机
• 集群交换机运行状况监控 (CSHM)

• CSHM 报告事件日志中未使用但已启用的 ISL 端口的 ISL 关闭警报：

[Node-01: cshmd: hm.alert.raised:alert]: Alert Id = SwitchIslIfDownWarn_Alerts, Alerting Resource = Switch1/Slot: 0 Port: 15 25G - Level raised by monitor ethernet-switch

• 已触发 ASUP 警报：

HA Group Notification (Health Monitor process cshm: SwitchIslIfDownWarn_Alerts[Switch1/Slot: 0 Port: 15 25G - Level]) ALERT

• 系统健康状况和交换机健康状况报告为降级：

Cluster1::*> system health status show
Status
---------------
degraded

Cluster1::*> system health subsystem show
Subsystem      Health
----------------- ------------------
SAS-connect     ok
Environment     ok
Memory       ok
Service-Processor ok
Switch-Health    degraded
CIFS-NDO      ok
Motherboard     ok
IO         ok
MetroCluster    ok
MetroCluster_Node ok
FHM-Switch     ok
FHM-Bridge     ok
SAS-connect_Cluster
          ok
13 entries were displayed.

• 这也可能在接管和交还操作期间发生（不取决于升级过程）