Fastora NAS-104WR Hi there, FYI my project site is using a Fastora NAS-104WR. This NVR is running 24/7 with plenty of moving part and generate a significant amount of heat within, that make these type of equipment more prone to wear and tear after a certain duration of use. This equipment normally failed on the harddisk due to the nature of the operation where unlike conventional PC, the NVR run 24/7 and data is being read and write during the entire period of time. This explanation was given by my sub-contractor. It make sense for me. However, i still concern as a frequent fail is on the harddisk itself. I was asking them just to have an extra harddisk as a backup failure. But, according to them it won't work like that because the time consume is our consern. They suggested to have an extra NVR set as a backup failover. As they said, the recording system is equip with failover funtionallity in which it can automatically switch the recording to a spare NVR in the network itf it detect an NVR has failed. I would like to know if I can only buy an extra harddisk to solve this problem or was it relevant to buy an extra NVR as a backup.Tq.