I'm planning to build a NAS for CCTV retention as my 8TB NVR will only retain 3.5 weeks of footage and I've been caught short a few times now. I have 8 x 3TB drives to put into an array with LSI 9921-8i HBA. unRaid seems popular here in the forums but I've never used it. I have no requirement for virtualisation- this purely for storage. Hardware requirements for unRaid are lower which seems advantageous. I like the idea of a ssd cache drive for performance but with up to 16 concurrent h264 streams I think I'd need a fairly large SSD to cope. I am of course assuming that a DIY NAS can handle that much data! More likely 8 concurrent streams most of the time. What NAS platform would you recommend for this application ? And would anyone happen to know of a good case to house 8 3.5" drives?
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