更换控制器后，无法通过 HA 对访问 FC LUN

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适用场景

ONTAP 9
FC
Windows Server

问题描述

更换控制器后，无法通过 HA 对访问 FC LUN

Windows Server 事件日志显示：

mpio event 47

An error occurred while the system tried to claim a Multipath I/O (MPIO) path. The location of the failing path is described by the SCSI address (4, 0, 1, 0) (Port, Bus, Target, Lun). To resolve this issue, either reboot the system, or show hidden devices in Device Manager and try uninstalling the specific disk device indicated above, and then rescan for hardware changes.

不使用 MPIO 的 LUN 可见，但会显示为单独的设备（多个磁盘条目）