Examine the performance and accessibility of virtual machines to diagnose problems in the vSAN cluster. Verify Drivers, Firmware, Storage I/O Controllers Against the VMware Compatibility GuideUse the vSAN Health Service to verify whether your hardware components, drivers, and firmware are compatible with vSAN. Examining Performance in a vSAN ClusterMonitor the performance of virtual machines, hosts, and the vSAN datastore to identify potential storage problems. Network Misconfiguration Status in a vSAN ClusterAfter you enable vSAN on a cluster, the datastore is not assembled correctly because of a detected network misconfiguration. Virtual Machine Appears as Noncompliant, Inaccessible or Orphaned in vSANThe state of a virtual machine that stores data on a vSAN datastore appears as noncompliant, inaccessible or orphaned because of failures in the vSAN cluster. Attempt to Create a Virtual Machine on vSAN FailsWhen you try to deploy a virtual machine in a vSAN cluster, the operation fails with an error that the virtual machine files cannot be created. Stretched Cluster Configuration Error When Adding a HostBefore adding new hosts to a stretched cluster, all current hosts must be connected. If a current host is disconnected, the configuration of the new host is incomplete. Stretched Cluster Configuration Error When Using RVC to Add a HostIf you use the RVC tool to add a host to a stretched cluster, the configuration of the new host is incomplete. Cannot Add or Remove the Witness Host in a Stretched ClusterBefore adding or removing the witness host in a stretched cluster, all current hosts must be connected. If a current host is disconnected, you cannot add or remove the witness host. Disk Group Becomes LockedIn an encrypted vSAN cluster, when communication between a host and the KMS is lost, the disk group can become locked if the host reboots. Parent topic: Handling Failures in vSAN
