I'm crashing snapraid. This is in OMV5. I did test runs on the system with a 1T drive as the pairity and only the 500 and 700g as data & content, and things worked ok.
I upgraded drives and now have 3 drives for data and content (500Gb, 700Gb, and 3T) and one 3T drive for pairity. Since then, every time I run sync it uses all the memory and crashes oom error, unless I turn on swap, in which case it swaps its ass off and never completes the sync. I just started 'fresh' with block size increased from 256 to 512, deleted pairty & content files, and ran a new sync. Same thing this time, high mem usage and load for hours, but now the the pairity drive filed up completely. I don't get it, as I only have 1.5T of data, mostly music and movies. I shouldn't be using this much memory or pairity space.
Union1 is simply a mergerfs pool of the 3 data drives, not included in the snapraid config.
snapraid config from omv interface
What the heck am I doing wrong?