In the process of Ubuntu istallation I got a message to turn of RST (Rapid Storage Technology). As I understood, I should change it in BIOS on AHCI in order to install Ubuntu. Will this affect the performance of my ssd's?
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Intel's RST does not support Linux, which makes it a problematic thing to keep enabled if you plan on running Ubuntu natively. This document from Ubuntu goes through some of the details behind RST and Linux.
As for the question on performance, it should not affect performance at all. I have Lenovo and Dell machines where RST is disabled and can consistently get slightly faster speeds than I would if the machines were running some version of Windows (which I generally use only at first to benchmark before wiping the storage devices to install Ubuntu or another distribution). Without knowing specifically which hardware you are using, I cannot offer specific benchmarks, but they likely exist somewhere on the Internet.
So long as you do not have several storage devices configured as RAID via RST, Windows should not complain too much if you disable the feature and configure a multi-boot environment.
matigo
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