If you are experiencing storage error 1460 with Hyper-V Cluster, on a secondary node (not the disk owner), you should check first ISCSI connection properties then enable SMB Client and Server protocols on all network adapters. I know this is not so nice but Windows Cluster may try to estabilish a connection over a non preferred network interface so timeout causes the disk connection to fail.
Event ID generated: 5142
Description: Cluster Shared Volume ‘Volume_name’ (‘Cluster Disk #’) is no longer accessible from this cluster node because of error ‘ERROR_TIMEOUT(1460)’. Please troubleshoot this node’s connectivity to the storage device and network connectivity
When accessing a CSV volume from a passive (non-coordinator) node, the disk I/O to the owning (coordinator) node is routed through a ‘preferred’ network adapter and requires SMB be enabled on that network adapter. For SMB connections to work on these network adapters, the following protocols must be enabled:
Client for Microsoft Networks
File and Printer Sharing for Microsoft Networks