Camera Count Limit for stable BI operation ?

[stonewatch]

My system: BI 3.62.03 runnning on a i4770 16GB W7-64pro Intel 530-180GB SSd for system and clips WDred 2TB for archive, Gigabit routers and switches.
8 caneras, max bitrate of all cameras ca 12MB/sec.All cameras record direct to disk and triggered only by DIO, no video motion detection. Pretrigger frames 60 per camera. Memory typ 1600MB, cpu typ 20%. This setup runs without an issue.

If, however 2 more cameras are added with video motion detection it regurlarely crashes after a day of running.

What are your experiences?

 

[fenderman]

This is strange...can you see the memory usage ramp up when you add the cams? Are the two new cams the same cameras as the other 8?

 

[stonewatch]

Each new camera adds 100 to 150MB, IMO due to the high number of pretrigger-frames. These are necessary for direct to disc recording...no loss of image-quality esp with Arecont AV5155DN and AV5115DN.
The additional cameras were also Areconts.