Dear MS,
My system is running Failover Cluster Manager on Windows Server 2012R2. Role Hyper-V clustering.
My system is good normally.
Last week I have a full windows 2012R2 update maintenance. List update below
After reboot update. logon on to FCM report error.

I have check event log error report eventid: 5142, 5120
Cluster Shared Volume 'Volume1' ('Cluster Disk 1') has entered a paused state because of '(c000020d)'. All I/O will temporarily be queued until a path to the volume is reestablished.
I have manually checked bring online csv disk, online, it took about 5 minutes to return the disk back to offline and reported the error as above.
I think the reason for the error is due to one of the Windows 2012R2 March 2021 updates.
Please help me thanks very much