Date: Thu, 3 Aug 2006 16:01:01 -0600 From: "Sean Thomson" <psthomso@hotmail.com> To: =?iso-8859-1?Q?S=F8ren_Schmidt?= <sos@freebsd.org> Cc: freebsd-hackers@freebsd.org Subject: RE: Question on SATA Hotplug, NCQ and Port Multiplier support Message-ID: <BAY102-W6E880361B34036ADE267CCE530@phx.gbl>
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> Sean Thomson wrote:> > Howdy Folks,> > > > I'm trying to find out what the current/future support for SATA hotplug, > > NCQ, and Port Multiplier is. Specifically, I'm tied to intel's ICH9 SATA controller > >and pegged to implement the features if they aren't planned or available. That > > last part is up in the air, pending what I find out and how long it'll take.> > > > After poking around the mailing list, I found that Soren had mentioned > > that he is working on NCQ and I can really only find references to > > hot plug in the context of RAID. Is hot plug generally supported for > > controllers that support it? From experience in another OS, port > >multiplier was not even on the radar as nobody was asking for > > it, so I'm guessing that the level of interest is just as low here.> > > > Anyway, any guidance would be greatly appreciated!> > > SATA hotplug/hotremoval is implemented for all chips I have access to > and that supports it.> > NCQ is planned and in the works but not for general consumption yet.> Port multipliers, well, I have had lots of trouble even locating someone > that actually has one, but a couble of days ago I got the word from one > of our supporting vendors that an evalution version should be in the > mail, more to follow on that as things unfold.> > Both NCQ and portmultipliers needs support from the chipset, so it > depends on those features being present and that I can get docs on how > its done. Docs are lacking here as usual, but at least chips that does > AHCI (Intel, JMicron and VIA) and Promise chips will be supported.> > -Søren> > Thanks Søren, I appreciate the response. The chipset is an intel AHCI chipset, so its covered. As far as the port multiplier is concerned, I found one by Silicon Image (CGS-3726-A1). It should work. If you don't get one from your supporting vendor, let me know and I'll see if I can get the one I just mentioned thanks! Sean _________________________________________________________________ Try Live.com: where your online world comes together - with news, sports, weather, and much more. http://www.live.com/getstartedhelp
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