Hasta La Motion!

Having some reeeeally troubling issues with my RAID-setup and Nuke caching…

I have a 2010 Mac pro with 1 system disk and 4 7200rpm WD Caviar Black disks soft-raided (striped, 256k) which I’m trying to use as cache storage.

When doing disk speed tests I’m reaching 402 / 405 mb/s read and write speed wich SHOULD be enough for 10bit 2k DPX files (right?)

However, I’m only reaching speeds around 11fps when I’m playing a sequence back in the viewer, this is with one read node and nothing else in the script.

I’ve tried different Raid block sizes, but 256 is the fastest option so far.

This is what bothers me the most at the moment: When I set up my OS disk as cache disk, I’m reaching playback speeds at 15fps easily. Makes me want to kill myself, I didn’t get a 4 disk RAID for nothing 🙁 🙁

I’ve also tried having my source material on my OS disk, caching to my RAID, and vice versa.

I even tried 2 disk raid for source material and another 2 disk raid for cache, but I get even worse results then :/

Help anyone !!

EDIT: Forgot to mention that the playback of 2k 10bit DPX files in DJV is almost flawless (around 23-24fps at the first playback)