[CentOS] M.2 PCI-E card

Tue Apr 4 01:17:23 UTC 2017
Chris Adams <linux at cmadams.net>

Once upon a time, Alice Wonder <alice at domblogger.net> said:
> I need a low profile PCI-E card that allows for up to 2 M.2 SSD
> drives that is known to work with the stock kernel in CentOS 7.
> Can anyone recommend one?

I can't recommend a specific one, but any adapter card should work.
However, note that M.2 is not a single "thing" to the computer; the
drive interface can be SATA, PCI-E AHCI, or PCI-E NVMe.  The first two
would look the same as a traditional SATA device to the OS, so should be
fine.  The third is a different interface; I haven't looked to see if
the CentOS 7 kernel supports NVMe (I suspect it does, but you should
check before buying an NVMe device).  I know that NVMe works fine with
recent Fedora.

Also note when choosing an adapter; the M.2 slot is keyed different for
the different device types, so make sure you get an adapter that matches
your device.
Chris Adams <linux at cmadams.net>