You will spend hours pouring over footage to find that the footage is useless or didn't record. And months of low quality/framerate footage is probably useless garbage that will also waste tons of your time if there is an incident. If this is for a DOD site or a casino it may be a different story, but from a usability standpoint it's more important to be able to pull about 3 weeks of high frame rate, clear footage from all of your cameras than to have every second of footage on bullet proof storage if you can't record good footage in real time. If you are going 5 plate 3.5 sas drives then the difference in space probably isn't the issue (raid vs mirrors) but with spinning drives more spindles = more cameras. I can't see RAID 6 being ideal for most places, the hit to both write and read performance is huge vs either mirrors or mirrored stripes. These days I would probably slab in 2.5 in WD red SSDs but spinning drives will work fine if they are provisioned optimally. This is a problem where the hardware really can make a difference, and generic nearline 5400 or 7200 drives may not do well. Ask an integrator or a vendor for a quote and you get a 15k box where each camera is set to 5-10fps and record on motion. Ip cameras/NVRs are one of those "*special*" industries that seem unable to recommend specs that result in a working system. TLDR, probably ignore this unless you are wrenching on the storage part of the problem :)
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |