USC has built-in iSCSI protocol, which can directly read and write iSCSI lun block devices, and supports iSCSI target auto-discovery, greatly reducing configuration time. Video data is written in streaming mode. The working node can be configured as a hot standby mode, which can achieve smooth switching of the device management node to the hot standby node, thus achieving redundant backup of device management video. Switching servers without needing to back up video reduces system downtime to a very small range.
