Maximum number of cards / cameras?

wowiesy · Post by **wowiesy** » Fri May 15, 2009 9:34 am

Is there a limit to the maximum number of PCI cards / video channels that ZoneMinder (regardless of version) can handle? If using only PCI cards? PCI combination with PCI express? If using PCI cards / PCI express / USB / Ethernet?

curtishall · Post by **curtishall** » Fri May 15, 2009 11:27 am

wowiesy wrote:Is there a limit to the maximum number of PCI cards / video channels that ZoneMinder (regardless of version) can handle? If using only PCI cards? PCI combination with PCI express? If using PCI cards / PCI express / USB / Ethernet?

Besides a PCI limitation (bandwidth issue) there is a maximum number of devices that the bttv driver will load. I _believe_ it's 32. It can be changed but requires your kernel to be recompiled.

wowiesy · Post by **wowiesy** » Fri May 15, 2009 7:03 pm

Is this specific to the bttv driver? How about other drivers? Like SAA7134? How about DVR cards? I have read somewhere that Geovision doesn't work with ZoneMinder.. but are there DVR cards that have been tested to work with ZoneMinder?

Lee Sharp · Post by **Lee Sharp** » Mon May 18, 2009 8:30 pm

The bttv limitation is 16. Tried and tested by me.

Those chips can be split 4 ways, so that can be 64 cameras, and 3-5fps. Or 32 cameras at 10-12fps.

The saa chips can use a different driver, and I do not know the limit there. Network attached cameras are no limit.

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Maximum number of cards / cameras?

Maximum number of cards / cameras?

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