02-12-2019 08:26 AM
I am running a server with the Unifi Video software installed on it. It has 2 Xeon quad core processors 10GB of RAM and 3 WD Purple 2TB drives running in RAID 5 for video storage only. The Linux OS is on another drive. CPU and memory usage are almost none with 57 cameras. But I am having problems with the NVR loosing connection with the cameras. Is there a limit in the software as to how many cameras you can run on one NVR?
02-12-2019 08:56 AM
I would bet you are hitting IO issues. RAID5 is the speed of just 1 drive, or a little less.
you can use bcache or dmcache and buffer the writes in RAM.
Where is your database? Is it on the RAID? Should have the db in an SSD if at all possible.
also, RAID5 is evil. Never use it. Ever.
02-12-2019 09:05 AM
You should also note that WD Purple drives are 5400 RPM. For that many cameras, you will want to use 7200RPM drives. WD RED Pro or GOLD drives are good options, as the UFV workload does not benefit from the firmware tweaks in surveillance-class drives.
02-12-2019 09:25 AM
My expierence when you run out of iOPS is the camera's always stay connected they just stop recording all togeather. Though I would bet you at maxing out the disks. How are you measuring what you are writing and what the disk's are capable of? If camera's keep disconnecting I would think it would be a network issue.
02-12-2019 04:51 PM