Microsoft released a new update for Windows Server 2016 (14393.2580) that fixes a bunch of critical issues in S2D and Hyper-V (FCI) environments:
- Addresses an issue that depletes the storage space on a cluster-shared volume (CSV) because of a Hyper-V virtual hard disk (VHDX) expansion. As a result, a Virtual Machine (VM) might continue writing data to its disk until it becomes corrupted or stops working. The VM might also restart and then resume writing data until a corruption occurs.
Addresses an issue that occurs when using multiple Windows Server 2016 Hyper-V clusters. The following event appears in the log:
“Cluster Shared Volume ‘CSVName’ (‘CSVName’) has entered a paused state because of ‘STATUS_USER_SESSION_DELETED(c0000203)’. All I/O will temporarily be queued until a path to the volume is reestablished.”
- Addresses an issue that may cause the creation of a single node cluster or the addition of more nodes to a cluster to fail intermittently.
- Addresses an issue that occurs when restarting a node after draining the node. Event ID 5120 appears in the log with a “STATUS_IO_TIMEOUT c00000b5” message. This may slow or stop input and output (I/O) to the VMs, and sometimes the nodes may drop out of cluster membership.
- Addresses an issue that may cause the addition of nodes to fail intermittently after creating a single node in a Windows Server 2016 Cluster. The error code is, “0x0000001e”.
This update also resolves the following issues:
- Event 5120″ with STATUS_IO_TIMEOUT c00000b5 after an S2D node restart on Windows Server 2016 May 2018 update or later
- Virtual Disks resources are in No Redundancy or Detached status in a Storage Spaces Direct cluster
It’s highly recommended to apply the update as soon as possible.