-In Preview, Elastic SAN supports public endpoint from selected virtual network, restricting access to specified virtual networks. You configure volume groups to allow network access only from specific vnet subnets. Once a volume group is configured to allow access from a subnet, this configuration is inherited by all volumes belonging to the volume group. You can then mount volumes from any clients in the subnet, with the [internet Small Computer Systems Interface](https://en.wikipedia.org/wiki/ISCSI) (iSCSI) protocol. You must enable [service endpoint for Azure Storage](../../virtual-network/virtual-network-service-endpoints-overview.md) in your virtual network before setting up the network rule on volume group. If a connection between a virtual machine (VM) and an Elastic SAN volume is lost, the connection will retry for 90 seconds until terminating. Losing a connection to an Elastic SAN volume won't cause the VM to restart.
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