[OpenIndiana-discuss] Sata Port Multiplier

[Gary Gendel]

Mark,

I struggled with a port multiplier in a similar configuration (but older 
chipset) until I finally gave up, bought an 8 port card and bypassed it 
with a lovely sata octopus. :(  I even started hacking at the driver 
code where I found some things that seemed unfinished but was never 
totally successful.  This was back around build 121 so things may be 
better now.  I doubt it because there wasn't much interest in getting 
this feature working.  Sorry I can't give you the magical incantation to 
get things going.

Gary

On 05/14/2013 04:07 AM, Mark wrote:
> I have been trying to get the si3124 driver working with port 
> multipliers using the si3826 chipset.
> The driver source suggests port multipliers are supported.
>
> The card's are seen, driver loads, but no disks.
>
> The controller ports with multipliers connected show as failed.
>
> The server is the Backblaze Pod 3.0 system using Syba PCI Express SATA 
> II 4-Port RAID Controller Card SY-PEX40008 and AC-SAN-5PMBP 5 Bay Port 
> Multiplier Backplane (Sil 3826 Chipset).
>
> No issues when I tried running Nas4Free, but FreeBSD doesn't support 
> the application I want to use for the storage.
>
>
> I did try turning on debugging, but as a beginner at driver debugging 
> I'm not sure I achived the desired result and got no useful info from it.
>
> Anyone have experience with Sata Port Multipliers and can share a few 
> pointers ?
>
> Mark.
>
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