Re: [tlug] White Box: Some Assembly Required ...

[Stephen Lee <sl-tlug@example.com>]

CL <az.4tlug@example.com> wrote:
> - A Kuroto Shikou 10-port SATA3 controller card which is mounted in the 
> second PCIe x16 slot (x4) (and which reports it is AHCI
> 
> EXCEPT:
> 
> When I boot up, I can only see two of the controller card mounted HDDs.  

If you are talking about this card

http://www.kuroutoshikou.com/product/interface/ata_sata/sata3i10-pcie/

It says it is an ASM1062 (PCIe 2 port SATA controller) plus two JMB575
(1 to 5 port SATA port multiplier).  Port multipliers should in theory
work under linux, but it is not a very common configuration so it is
possible there are some bugs handling them, e.g. this one:

https://utcc.utoronto.ca/~cks/space/blog/linux/SystemdSATAPortMultiplierProblem

which was reported as bug 1611945 and seemingly not yet fixed.

https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1611945

Perhaps that exact bug is not the reason for your "only seeing
2 drives out of 10" problem, but I think port multiplier related issues
is where you should start your search about it.

-- 
Stephen Lee <sl-tlug@example.com>