Hi,
Has anyone had any experience with Intel Vroc[1]? I'm possibly having to deal with a new server with such technology and can't find much (real world) information about it. Looking at the specs it's basically a glorified fake raid which usually turns on my alarm bells. Has anyone done any testing, how does it compare with "real" raid or software raid?
From their description: Intel® VROC for Linux* is built upon MD RAID...
So, it is Linux MD RAID with some management addons. I prefer to stay far away from such addons.
A nice feature is the LED management, but who needs it if you have proper monitoring and are not in the DC anyway?
I prefer standard U.2 NVMe SSDs connected via PCIE to the CPU. Works wonderfully on AMD EPYC so I expect the same on Intel also.
Just don't forget to adjust raid speed limits. I have
dev.raid.speed_limit_max = 10000000 dev.raid.speed_limit_min = 15000
to enjoy full sync speed.
Regards, Simon