On Mon, 2021-02-08 at 22:26 +0000, Bernard McNeill wrote: [...] > I have one SSD (which has Win-10 on it), there is no other disk > (spinning or otherwise) on the machine. > The BIOS System Information says 'M.2. SATA =(none)' > and 'M.2. PCIe SSD-0=87NB51ASK5HS'. > However: Under BIOS System Configuration, 'SATA Operation' is set to > 'RAID On', [other options are 'Disabled' and 'AHCI' ]. > Interesting that Dell is making a distinction here between SATA and PCIe mass storage, but calling its RAID foolishness "SATA Operation - RAID On". Does this imply maybe that the SSD connected via PCIe and not via the SATA wiring/controller, is exempt from the RAID interference? I don't know.
It sure would be nice if that is what they mean though. Maybe you can carefully test how this really works. (Make the backup first though)