Questions · Video software
What happens if a drive fails?
If the storage is in RAID, nothing is lost: the array carries on working with one drive fewer and rebuilds when you replace it. If it is not, you lose whatever was on that drive, which in a video system usually means a few specific cameras for the whole retention period.
What you need to know about RAID in video is that the rebuild is the delicate moment. With large drives it can take a long time, during which the array runs slower and is exposed to another one failing; that is why large volumes use configurations that tolerate two failures and a spare drive is left in that takes over on its own. And you have to confirm that the system stands up to the recording rate while it rebuilds, because if it does not, images are lost on exactly those days.
What separates a well-looked-after installation from a neglected one is not the RAID, it is the alert. Drives warn that they are dying before they die, and the system can send that alert by email. Without it, the normal thing is to find out three weeks later, when you go looking for an image that is no longer there.
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A written answer is enough to decide whether it interests you. To know whether it works at your site you have to see it on a real scene, with the image as it is and, on top of it, what the system understands from it. That is on the IRIS Neural website, which is the group's product.