What happens to my data if the SoftNAS instance is stopped?

Your data remains intact and undisturbed. When the SoftNAS Cloud NAS instance is not running, NAS clients connecting via NFS, iSCSI, CIFS or AFP will not have access to NAS services, which will be restored when the SoftNAS Cloud NAS instance is powered back on. If data is in production with SNAP HA®, a failover would occur and the data would still remain available.