Hyper-V
Hyper-V hosts that use TrueNAS iSCSI storage need adjusted storage timeouts before they enter production.
TrueNAS Enterprise systems provide high availability (HA) through dual controllers in active/standby mode. Only the active controller serves I/O. A failover transfers that role to the other controller, which imports the pool and starts the iSCSI targets. No controller serves I/O on the affected LUNs until the transfer completes.

