Stable many-port SATA controller recommendations

Dieter freebsd at sopwith.solgatos.com
Mon May 14 21:11:08 UTC 2007


> > If I use up a slot, I'd like at least 4 ports and NCQ.
> > If FreeBSD doesn't have NCQ support yet I might just get a
> > USB or FW to SATA adapter or two and wait for NCQ.
> 
> NCQ is nice but I don't *really* care. I just want something that works
> at all :) Of course I would want NCQ if it was a performance critical
> production system though. And AFAIK NCQ is not yet supported in FreeBSD.

Problem is that to avoid scrambled filesystems you have to put the disk's
cache in write-through mode, and write performance drops 90%.  NCQ should
fix that.


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