I built the fastest (to my knowledge) native SATA RAID array on a Raspberry Pi Compute Module 4, and set it up as a NAS server, testing out hard drives and SSDs, and different RAID setups like RAID 0, 1, and 10. I discuss the advantages of different RAID levels, how to install and configure Samba and NFS, and benchmark everything, from drive to RAID performance, energy efficiency, temperatures, and more! Check out this blog post for all the detailed instructions: https://www.jeffgeerling.com/blog/2020/building-fastest-raspberry-pi-nas-sata-raid Check out mebs_t's NAS project on Reddit: https://www.reddit.com/r/raspberry_pi/comments/jt89dm/compute_module_4_nas_pcb_with_pcie/ Support me on Patreon: https://www.patreon.com/geerlingguy Sponsor me on GitHub: https://github.com/sponsors/geerlingguy Products mentioned in this video (some links are affiliate links): - IO Crest 4-port SATA PCI Express 1x card: https://amzn.to/2VGCPho - CableCreation low-profile SATA cable 5-pack: https://amzn.to/3g5SkJ6 - CoolerGuys 12v 2A Molex power adapter (for drives): https://amzn.to/33K1Ooy - Cable Matters Molex to SATA power adapter: https://amzn.to/36ITbMS - StarTech 4x SATA power splitter: https://amzn.to/2IbTTJ1 - Phanteks Stackable 3.5" HDD brackets: https://amzn.to/36HAU2H - Corsair Dual SSD 3.5" mounting bracket: https://amzn.to/3gdKAoM - ICY DOCK ExpressCage 4-bay 2.5" hot-swap cage: https://amzn.to/3qkPFA2 - Kingston 120GB SATA SSD: https://amzn.to/3quK22w - WD Green 500GB HDD: https://amzn.to/3gd0qzQ #RaspberryPi #NAS #RAID Contents: 00:00 - Pi CM4 SATA Support 00:50 - Baseline SATA performance 02:49 - Learning about RAID 07:19 - HDD RAID with mdadm 10:47 - SSD RAID 10 Performance 13:42 - NAS with Samba and NFS 18:15 - Thermals and Energy Efficiency 19:33 - Summary and bloopers