System requirements

The following resources are enough to run Yucca:

1. CPU (processor) - 1 core
2. RAM (memory) - 512Mb.
3. DISK (free disk space) - 1Gb.

These are the minimum requirements just for running the server; for what the consumption will be when adding cameras, read here and here.

Camera requirements

The camera must stream via the RTSP protocol, and the video must be in the h264 or h265 codec.

Maximum server capacity

Based on our customers' experience, we've concluded that on average the ideal ratio is 10 cameras per 1 CPU core. So, say on a server with 24 cores and a processor frequency of 2.5-3.0 Ghz, you can park 240-250 cameras without any problems. At higher values, LA starts growing significantly, and you may notice artifacts and instability.

Disk space calculation

Suppose we have 150 identical cameras with a stream bitrate of 2M, and we want to write an archive with a depth of 14 days for them:

• 2 megabits per second, that's 2/8 = 0.25 megabytes
• 0.25 * 60 * 60 = 900 megabytes per hour
• 900 * 24 = 21600 megabytes => 21.6 gigabytes per day per camera
• 21.6 * 14(days) = 302.4 gigabytes in 14 days per camera
• 302.4 * 150 = 45360 gigabytes => 45.36 terabytes

This simple calculation lets you roughly estimate how much space our archive will take up. It's also worth noting that arrays shouldn't be filled up to 99% capacity, and it's better to keep at least 5-10% free.