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Re: LSI MegaRAID installation

Tech Support tell me the chip is vendor 8086 product a106.

I have gone back to square one, initialised a pair of disks in RAID 1
mode, set the BIOS to RAID rather than AHCI mode, and see from dmesg
that this configures at ahcisata0.

According to Ubuntu it is an LSI SAS-3 3108 (Invader).

So: is there currently no driver? is there something I am not doing
correctly so that the RAID controller is not recognised?  or am I just
misunderstanding what I should expect to see in the install process (I
was expecting to see one virtual disk to partition, not two physical

Steve Blinkhorn <steve%prd.co.uk@localhost>

You wrote:
> On Mon, 30 Apr 2018, Mouse wrote:
> >>> I can't see anything in dmesg.boot: it's conceivable that if RAID
> >>> mode is not configured in the BIOS then the chip won't show up I
> >>> suppose.
> >
> >> You will still see the PCI device, e.g.:
> >
> >> vendor 1000 product 0016 (RAID mass storage, revision 0x01) at pci11 dev 0 function 0 not configured
> >
> > Sometimes.
> >
> > I have seen cases where, as Steve says, a device that's disabled at the
> > BIOS config level is not visible on the system buses at all.  Is there
> > some reason it's impossible this could be such a case?
> Depends what his definition of "RAID mode is not configured in the BIOS" 
> means. In my experience with MegaRAID stuff, this would mean "haven't 
> created any virtual drives yet" - on modern uEFI you do this through the 
> BIOS/uEFI settings.
> -- 
> Stephen

Steve Blinkhorn <steve%prd.co.uk@localhost>

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