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Date:      Tue, 18 May 2010 13:35:35 -0400
From:      dieterbsd@engineer.com
To:        freebsd-hardware@freebsd.org
Subject:   Re: SATA port multiplier recommendations?
Message-ID:  <8CCC4C7A8624558-1B6C-796F@web-mmc-m09.sysops.aol.com>

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>> Does anyone have recommendations for/against specific SATA port
>> multipliers?
>> Do they all work well with FreeBSD?
>
> Afaik port multipliers are unsupported by FreeBSD. You are talking
> about controllers?

Beginning in 8.0, port multipliers (and NCQ) are supported by ahci(4)=20
and
siis(4).

>> I was hoping someone would have a port multiplier with a 600 MB/s
>> uplink
>> by now?
>
> It is possible with LSI 3081e (mpt).

Huh?

LSI 3081e appears to be a 300 MB/s 8 port SAS controller that requires
at least an 8 lane slot.  Not going to fit in my wimpy x1 slots.
The mpt(4) man page doesn't appear to mention NCQ.





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