I am looking for a good enterprise surveillance software to deploy on a relatively cheap second hand used server from eBay. Current setup is super jank using 2 different brand nvrs with no redundancy and no smart features. I have 32 cameras all sending h264 1080p 30fps video 24/7. I want to keep all the day for a week before rewriting all the data again. Blue iris is super inefficient for this as firstly it takes a ridiculously powerful setup to handle these many streams and secondly it cannot run in a VM. Even if I dedicate a system disregarding the second deficiency I do not want to put a new top of the line cpu to support a NVR. Please recommend any other enterprise solutions with similar feature set