2006-01-31 11:53:30

by Sander

[permalink] [raw]
Subject: [OT] 8-port AHCI SATA Controller?

Hello,

I'm looking for an 8-port SATA controller based on the AHCI chipset, as
according to http://linux.yyz.us/sata/sata-status.html#vendor_support
this chipset is completely open.

I've searched the websides of the companies which according to
http://linux.yyz.us/sata/sata-status.html#ahci base some of their
products on this chipset, but I couldn't find an 8-port controller.

I've also googled, but without success, hence this somewhat offtopic
message. Although I hope the response helps others in their quest.

The question: does an 8-port AHCI based SATA controller exist? And if,
where can I find it? 12, 16 or 24 ports will do too. I don't need HW
raid, just JBOD.


Some background info: I have a 24-disk chassis which is currently filled
with 7 disks, and will soon be filled with 12 disks. The 7 disks are
spread across two Promise SX8 controllers and the onboard nVidia
controller. 3 On each SX8 and one onboard. The disks have a small
partition dedicated to SW raid1 and a large partition dedicated to SW
raid5. One disk acts as a spare.

The performance of the SX8 is very bad because the in-kernel driver
handles one request per controller to safeguard against corruption.

This is what the comment in drivers/block/sx8.c states:

/*
* SX8 hardware has a single message queue for all ATA ports.
* When this driver was written, the hardware (firmware?) would
* corrupt data eventually, if more than one request was outstanding.
* As one can imagine, having 8 ports bottlenecking on a single
* command hurts performance.
*
* Based on user reports, later versions of the hardware (firmware?)
* seem to be able to survive with more than one command queued.
*
* Therefore, we default to the safe option -- 1 command -- but
* allow the user to increase this.
*
* SX8 should be able to support up to ~60 queued commands
* (CARM_MAX_REQ),
* but problems seem to occur when you exceed ~30, even on newer
* hardware.
*/
static int max_queue = 1;


In my tests with 'static int max_queue' I tried 30, 16, 4 and 2. With 30
and 16 I get instant corruption on the fs (ext3, which remounts ro
quickly on error). With 4 I need to hit it a bit harder to see
corruption, and with 2 the fs is rock solid.

o The performance with anything larger than 2 seems acceptable.
o It was also harder to hit with larger chunk sizes for the SW raid.

I've flashed the SX8 controllers with the latest BIOS/firmware, so
that's not the problem. NCQ is disabled in the SX8 BIOS, as the
in-kernel driver doesn't support NCQ and others have reported instant
corruption with NCQ enabled.

I've contacted Promise Support about this (including the sx8.c comment
and my findings). They replied:

===
Case Solution: I have not seen this problem in any os.

We populate all the drives and then put data into all seperate
logical drives. It has worked fine. One problem that you might be
having is that you are creating one large volume with a bunch of
smaller volume. This card is not made for that.

If you need a raid card use a card with a raid engine. If your trying
to software raid it your going to get errors.

I have not seen what you are talking about because we use this card
for basic or ext 3 ext 2 single hard drives. Try doing this that way.
===

This nonsense reply made me quite angry and disappointed with Promise.
The SX8 seemed a realy nice controller for a good price if you only need
JBOD support. But I guess in the end you always get what you pay for.

FWIW, this is with a pure 64bit kernel 2.6.16-rc1 on a Tyan K8SE
motherboard.

Thanks a lot in advance.

With kind regards, Sander


2006-01-31 16:39:30

by Lennart Sorensen

[permalink] [raw]
Subject: Re: [OT] 8-port AHCI SATA Controller?

On Tue, Jan 31, 2006 at 12:53:43PM +0100, Sander wrote:
> I'm looking for an 8-port SATA controller based on the AHCI chipset, as
> according to http://linux.yyz.us/sata/sata-status.html#vendor_support
> this chipset is completely open.

Hmm, I am not sure what the specs of AHCI are. Not sure if it supports
2 or 4 or more ports. The only controllers I have seen that run more
than 4 ports, are some raid cards, such as 3ware and areca. 3ware has
had linux support for years, and areca is getting there. Both of those
make 12+ port cards, which can run in JBOD mode.

Len Sorensen

2006-01-31 17:17:20

by Sander

[permalink] [raw]
Subject: Re: [OT] 8-port AHCI SATA Controller?

Lennart Sorensen wrote (ao):
> On Tue, Jan 31, 2006 at 12:53:43PM +0100, Sander wrote:
> > I'm looking for an 8-port SATA controller based on the AHCI chipset, as
> > according to http://linux.yyz.us/sata/sata-status.html#vendor_support
> > this chipset is completely open.
>
> Hmm, I am not sure what the specs of AHCI are. Not sure if it supports
> 2 or 4 or more ports.

According to page 7 of the
"Serial ATA Advanced Host Controller Interface Revision 1.1"
(available at http://www.intel.com/technology/serialata/ahci.htm), AHCI
supports up to 32 ports.

For example, Silicon Image 3124 also looks good on paper, but only
supports up to 4 ports.

> The only controllers I have seen that run more than 4 ports, are some
> raid cards, such as 3ware and areca. 3ware has had linux support for
> years, and areca is getting there. Both of those make 12+ port cards,
> which can run in JBOD mode.

Yeah, I know, but because of their real 'hardware' raid, these cards are
three times more expensive per port. And I just need JBOD.

Thanks for your time. Kind regards, Sander

--
Humilis IT Services and Solutions
http://www.humilis.net

2006-01-31 18:21:37

by Joshua Kugler

[permalink] [raw]
Subject: Re: [OT] 8-port AHCI SATA Controller?

On Tuesday 31 January 2006 02:53, Sander wrote:
> Hello,
>
> I'm looking for an 8-port SATA controller based on the AHCI chipset, as
> according to http://linux.yyz.us/sata/sata-status.html#vendor_support
> this chipset is completely open.
>
> I've searched the websides of the companies which according to
> http://linux.yyz.us/sata/sata-status.html#ahci base some of their
> products on this chipset, but I couldn't find an 8-port controller.
>
> I've also googled, but without success, hence this somewhat offtopic
> message. Although I hope the response helps others in their quest.
>
> The question: does an 8-port AHCI based SATA controller exist? And if,
> where can I find it? 12, 16 or 24 ports will do too. I don't need HW
> raid, just JBOD.

I've run some tests with this card under Linux and done pretty well:

http://www.supermicro.com/products/accessories/addon/DAC-SATA-MV8.cfm

They also have a 3.0Gb version.

Not sure if that is AHCI, but it is eight port.

I got the drivers here:

http://www.keffective.com/mvsata/FC3/

The latest was mvSata_Linux_3.6.1.tgz as of 2005-10-13.

Hope that helps.

j----- k-----


--
Joshua Kugler PGP Key: http://pgp.mit.edu/
CDE System Administrator ID 0xDB26D7CE
http://distance.uaf.edu/

2006-01-31 18:30:16

by Lennart Sorensen

[permalink] [raw]
Subject: Re: [OT] 8-port AHCI SATA Controller?

On Tue, Jan 31, 2006 at 06:17:23PM +0100, Sander wrote:
> According to page 7 of the
> "Serial ATA Advanced Host Controller Interface Revision 1.1"
> (available at http://www.intel.com/technology/serialata/ahci.htm), AHCI
> supports up to 32 ports.

Hmm, that's a nice feature set. Here is hoping everyone will consider
switching to that, and that no one screws it up and makes a mostly but
not quite compliant version.

> For example, Silicon Image 3124 also looks good on paper, but only
> supports up to 4 ports.
>
> Yeah, I know, but because of their real 'hardware' raid, these cards are
> three times more expensive per port. And I just need JBOD.

Really? How much does a 24 port areca card cost? Is it 12 times the
cost of a two port promise card?

I haven't looked at the prices lately.

Len Sorensen

2006-01-31 18:39:21

by Sander

[permalink] [raw]
Subject: Re: [OT] 8-port AHCI SATA Controller?

Lennart Sorensen wrote (ao):
> > Yeah, I know, but because of their real 'hardware' raid, these cards
> > are three times more expensive per port. And I just need JBOD.
>
> Really? How much does a 24 port areca card cost? Is it 12 times the
> cost of a two port promise card?

Not sure about the two port, but for example the SX8 is 180 dollars at
pricewatch.com, while an Areca 12-port starts at 756 dollars. That is
22.5 dollars per port vs 63 dollars per port. More or less the same goes
for 3Ware.

Of course you can't compare Areca/3Ware with the SX8 feature-wise, but
all I need JBOD.

Kind regards, Sander

--
Humilis IT Services and Solutions
http://www.humilis.net

2006-01-31 18:40:59

by Joel Jaeggli

[permalink] [raw]
Subject: Re: [OT] 8-port AHCI SATA Controller?

On Tue, 31 Jan 2006, Lennart Sorensen wrote:

> On Tue, Jan 31, 2006 at 06:17:23PM +0100, Sander wrote:
>> According to page 7 of the
>> "Serial ATA Advanced Host Controller Interface Revision 1.1"
>> (available at http://www.intel.com/technology/serialata/ahci.htm), AHCI
>> supports up to 32 ports.
>
> Hmm, that's a nice feature set. Here is hoping everyone will consider
> switching to that, and that no one screws it up and makes a mostly but
> not quite compliant version.
>
>> For example, Silicon Image 3124 also looks good on paper, but only
>> supports up to 4 ports.
>>
>> Yeah, I know, but because of their real 'hardware' raid, these cards are
>> three times more expensive per port. And I just need JBOD.
>
> Really? How much does a 24 port areca card cost? Is it 12 times the
> cost of a two port promise card?

about $1400 for pci-x or $1900 pci-express.

you might try the promise sataII-150 sx8 which is 8 ports per card and is
about $200

> I haven't looked at the prices lately.

The jump to a full-on sata raid controller is pretty steep.

> Len Sorensen
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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> More majordomo info at http://vger.kernel.org/majordomo-info.html
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--
--------------------------------------------------------------------------
Joel Jaeggli Unix Consulting [email protected]
GPG Key Fingerprint: 5C6E 0104 BAF0 40B0 5BD3 C38B F000 35AB B67F 56B2

2006-01-31 18:44:32

by Lennart Sorensen

[permalink] [raw]
Subject: Re: [OT] 8-port AHCI SATA Controller?

On Tue, Jan 31, 2006 at 07:39:29PM +0100, Sander wrote:
> Not sure about the two port, but for example the SX8 is 180 dollars at
> pricewatch.com, while an Areca 12-port starts at 756 dollars. That is
> 22.5 dollars per port vs 63 dollars per port. More or less the same goes
> for 3Ware.

Hmm, well the 24 port is listed at 1278, so less per port than the 12
port for sure, but if you only need 8, then well... :)

Of course I doubt there is that big a market for an 8 port NON raid
card, which might explain why there doesn't seem to be any. Of course
if there aren't any it is hard to have a market exist for them.

> Of course you can't compare Areca/3Ware with the SX8 feature-wise, but
> all I need JBOD.

Well personally I have never seen more than 4 ports per card on a non
hardware raid card. That doesn't mean they don't exist, but it makes it
a lot less likely that they exist in my book. :)

Len Sorensen

2006-01-31 18:49:57

by Sander

[permalink] [raw]
Subject: Re: [OT] 8-port AHCI SATA Controller?

Lennart Sorensen wrote (ao):
> On Tue, Jan 31, 2006 at 07:39:29PM +0100, Sander wrote:
> > Not sure about the two port, but for example the SX8 is 180 dollars at
> > pricewatch.com, while an Areca 12-port starts at 756 dollars. That is
> > 22.5 dollars per port vs 63 dollars per port. More or less the same goes
> > for 3Ware.
>
> Hmm, well the 24 port is listed at 1278, so less per port than the 12
> port for sure, but if you only need 8, then well... :)

Actually, I need 24 ports :-) But 3x SX8 sets me back 540 dollars
according to pricewatch, which is less than half.

> Of course I doubt there is that big a market for an 8 port NON raid
> card, which might explain why there doesn't seem to be any. Of course
> if there aren't any it is hard to have a market exist for them.

True.

> > Of course you can't compare Areca/3Ware with the SX8 feature-wise, but
> > all I need JBOD.
>
> Well personally I have never seen more than 4 ports per card on a non
> hardware raid card. That doesn't mean they don't exist, but it makes
> it a lot less likely that they exist in my book. :)

Fakeraid controllers are less expensive, and would do too of course :-)

--
Humilis IT Services and Solutions
http://www.humilis.net

2006-01-31 18:51:07

by Sander

[permalink] [raw]
Subject: Re: [OT] 8-port AHCI SATA Controller?

Joel Jaeggli wrote (ao):
> you might try the promise sataII-150 sx8 which is 8 ports per card and
> is about $200

Well, I have two of them and are looking for a replacement as the SX8 is
very slow. I started the thread with that actually :-)

Kind regards, Sander

--
Humilis IT Services and Solutions
http://www.humilis.net

2006-01-31 18:56:35

by Sander

[permalink] [raw]
Subject: Re: [OT] 8-port AHCI SATA Controller?

Joshua Kugler wrote (ao):
> I've run some tests with this card under Linux and done pretty well:
>
> http://www.supermicro.com/products/accessories/addon/DAC-SATA-MV8.cfm
>
> They also have a 3.0Gb version.
>
> Not sure if that is AHCI, but it is eight port.

Marvell has their own chipset, according to
http://linux.yyz.us/sata/sata-status.html#marvell

> I got the drivers here:
>
> http://www.keffective.com/mvsata/FC3/
>
> The latest was mvSata_Linux_3.6.1.tgz as of 2005-10-13.

I very, very much prefer in-tree drivers :-)

Kind regards, Sander

--
Humilis IT Services and Solutions
http://www.humilis.net

2006-01-31 18:58:08

by Lennart Sorensen

[permalink] [raw]
Subject: Re: [OT] 8-port AHCI SATA Controller?

On Tue, Jan 31, 2006 at 07:50:07PM +0100, Sander wrote:
> Actually, I need 24 ports :-) But 3x SX8 sets me back 540 dollars
> according to pricewatch, which is less than half.

I know with older promise controllers, it wasn't possible to run more
than 2 in one system as far as I remember due to some dma issues. Not
sure if that applies to the SX8.

If it turns out the SX8 has issues (like the one pointed out earlier
about number of commands to the card at once) or that it can't have 3
cards in one system at once, then what? Are you then out $540 + the
cost of a better controller? Certainly worth finding out before
spending the money.

> Fakeraid controllers are less expensive, and would do too of course :-)

Of course those aren't hardware, and are only meant for small toy raids
for windows users. The rest of use treat them as ide/sata controllers
only. I haven't seen one of those with more than 4 ports either. If
the SX8 is one, then I must admit I haven't looked at it before. I try
to avoid hardware from promise whenever possible.

Len Sorensen

2006-01-31 19:02:32

by Joshua Kugler

[permalink] [raw]
Subject: Re: [OT] 8-port AHCI SATA Controller?

On Tuesday 31 January 2006 09:56, Sander wrote:
> Joshua Kugler wrote (ao):
> > http://www.supermicro.com/products/accessories/addon/DAC-SATA-MV8.cfm
> >
> > They also have a 3.0Gb version.
> Marvell has their own chipset, according to
> http://linux.yyz.us/sata/sata-status.html#marvell

They do, but I could never find them. At least, not that made sense to me.
The mvSata_Linux drivers were the GPL'ed, and then "extended" versions, IIRC.
It's been a while since I've researched that.

> > I got the drivers here:
> > http://www.keffective.com/mvsata/FC3/
> > The latest was mvSata_Linux_3.6.1.tgz as of 2005-10-13.
> I very, very much prefer in-tree drivers :-)

I do too. However, I was trying to use a Supermicro P4SCi motherboard and it
*would not boot* with two SX8 cards and more than 8 SATA drives hooked up,
regardless of configuration (7 on one card, 2 on the other, etc). So, I had
to find another eight port card. And besides, the MV8's are about half the
price of the SX8's. :) So I went with what worked.

j----- k-----

--
Joshua Kugler PGP Key: http://pgp.mit.edu/
CDE System Administrator ID 0xDB26D7CE
http://distance.uaf.edu/

2006-01-31 20:38:21

by Roger Heflin

[permalink] [raw]
Subject: RE: [OT] 8-port AHCI SATA Controller?



> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of
> Lennart Sorensen
> Sent: Tuesday, January 31, 2006 12:58 PM
> To: Sander
> Cc: [email protected]; [email protected]
> Subject: Re: [OT] 8-port AHCI SATA Controller?
>
> On Tue, Jan 31, 2006 at 07:50:07PM +0100, Sander wrote:
> > Actually, I need 24 ports :-) But 3x SX8 sets me back 540 dollars
> > according to pricewatch, which is less than half.
>
> I know with older promise controllers, it wasn't possible to
> run more than 2 in one system as far as I remember due to
> some dma issues. Not sure if that applies to the SX8.
>
> If it turns out the SX8 has issues (like the one pointed out
> earlier about number of commands to the card at once) or that
> it can't have 3 cards in one system at once, then what? Are
> you then out $540 + the cost of a better controller?
> Certainly worth finding out before spending the money.
>
> > Fakeraid controllers are less expensive, and would do too of course
> > :-)
>
> Of course those aren't hardware, and are only meant for small
> toy raids for windows users. The rest of use treat them as
> ide/sata controllers only. I haven't seen one of those with
> more than 4 ports either. If the SX8 is one, then I must
> admit I haven't looked at it before. I try to avoid hardware
> from promise whenever possible.
>

Highpoint has some that I believe are software raidish.

They do have on-board parity generators that are used when
you use there binary only modules.

I have heard that they will work with later kernels (2.6.15+)
since the highpoint are a standard Marvell chipset, and they
seem to be fairly price competitive with JBOD raid controllers,
and have some controllers that have more than 8 ports, the price
per port may be better on the larger controllers.

Using 3 disk software stripe (linux) or 3 disks software stripe
(binary modules) I have got IO rates of 135MB/second sustained
over 90-100 GB read/write tests.

Roger

2006-01-31 20:45:42

by Jens Axboe

[permalink] [raw]
Subject: Re: [OT] 8-port AHCI SATA Controller?

On Tue, Jan 31 2006, Sander wrote:
> > I got the drivers here:
> >
> > http://www.keffective.com/mvsata/FC3/
> >
> > The latest was mvSata_Linux_3.6.1.tgz as of 2005-10-13.
>
> I very, very much prefer in-tree drivers :-)

Actually there is a sata_mv driver in the kernel, however it's pretty
experimental right now. I'm sure it could use testers :-)

--
Jens Axboe

2006-01-31 20:56:07

by Joshua Kugler

[permalink] [raw]
Subject: Re: [OT] 8-port AHCI SATA Controller?

On Tuesday 31 January 2006 11:38, Jens Axboe wrote:
> On Tue, Jan 31 2006, Sander wrote:
> > > I got the drivers here:
> > >
> > > http://www.keffective.com/mvsata/FC3/
> > >
> > > The latest was mvSata_Linux_3.6.1.tgz as of 2005-10-13.
> >
> > I very, very much prefer in-tree drivers :-)
>
> Actually there is a sata_mv driver in the kernel, however it's pretty
> experimental right now. I'm sure it could use testers :-)

Interesting. I understand it going through testing, but why didn't they pull
in the mvSata driver referenced above? It was already GPL. Or did they pull
in that driver and just want testing?

j----- k-----

--
Joshua Kugler PGP Key: http://pgp.mit.edu/
CDE System Administrator ID 0xDB26D7CE
http://distance.uaf.edu/

2006-01-31 21:20:59

by Jens Axboe

[permalink] [raw]
Subject: Re: [OT] 8-port AHCI SATA Controller?

On Tue, Jan 31 2006, Joshua Kugler wrote:
> On Tuesday 31 January 2006 11:38, Jens Axboe wrote:
> > On Tue, Jan 31 2006, Sander wrote:
> > > > I got the drivers here:
> > > >
> > > > http://www.keffective.com/mvsata/FC3/
> > > >
> > > > The latest was mvSata_Linux_3.6.1.tgz as of 2005-10-13.
> > >
> > > I very, very much prefer in-tree drivers :-)
> >
> > Actually there is a sata_mv driver in the kernel, however it's pretty
> > experimental right now. I'm sure it could use testers :-)
>
> Interesting. I understand it going through testing, but why didn't
> they pull in the mvSata driver referenced above? It was already GPL.
> Or did they pull in that driver and just want testing?

Did you look at the driver? I'm guessing no :-)

Additionally, it didn't interface with libata at all. A native libata
driver is greatly preferred.

--
Jens Axboe

2006-01-31 21:34:32

by Joshua Kugler

[permalink] [raw]
Subject: Re: [OT] 8-port AHCI SATA Controller?

On Tuesday 31 January 2006 11:59, Jens Axboe wrote:
> On Tue, Jan 31 2006, Joshua Kugler wrote:
> > On Tuesday 31 January 2006 11:38, Jens Axboe wrote:
> > > On Tue, Jan 31 2006, Sander wrote:
> > > > > I got the drivers here:
> > > > >
> > > > > http://www.keffective.com/mvsata/FC3/
> > > > >
> > > > > The latest was mvSata_Linux_3.6.1.tgz as of 2005-10-13.
> > > >
> > > > I very, very much prefer in-tree drivers :-)
> > >
> > > Actually there is a sata_mv driver in the kernel, however it's pretty
> > > experimental right now. I'm sure it could use testers :-)
> >
> > Interesting. I understand it going through testing, but why didn't
> > they pull in the mvSata driver referenced above? It was already GPL.
> > Or did they pull in that driver and just want testing?
>
> Did you look at the driver? I'm guessing no :-)

Yeah, sorry. I think I looked through some of the code, but not to the level
of detail you mention.

> Additionally, it didn't interface with libata at all. A native libata
> driver is greatly preferred.

Ah, that makes sense.

j----- k-----

--
Joshua Kugler PGP Key: http://pgp.mit.edu/
CDE System Administrator ID 0xDB26D7CE
http://distance.uaf.edu/

2006-02-01 10:03:34

by Sander

[permalink] [raw]
Subject: Re: [OT] 8-port AHCI SATA Controller?

Lennart Sorensen wrote (ao):
> On Tue, Jan 31, 2006 at 07:50:07PM +0100, Sander wrote:
> > Actually, I need 24 ports :-) But 3x SX8 sets me back 540 dollars
> > according to pricewatch, which is less than half.
>
> I know with older promise controllers, it wasn't possible to run more
> than 2 in one system as far as I remember due to some dma issues. Not
> sure if that applies to the SX8.
>
> If it turns out the SX8 has issues (like the one pointed out earlier
> about number of commands to the card at once) or that it can't have 3
> cards in one system at once, then what? Are you then out $540 + the
> cost of a better controller? Certainly worth finding out before
> spending the money.

I have a few systems which need 24 ports, so I could spread them, but
you are right of course.

> > Fakeraid controllers are less expensive, and would do too of course :-)
>
> Of course those aren't hardware, and are only meant for small toy raids
> for windows users. The rest of use treat them as ide/sata controllers
> only.

Exactly what I need (and am looking for). An 8+ sata controller. I would
not use the fakeraid.

> I haven't seen one of those with more than 4 ports either. If
> the SX8 is one, then I must admit I haven't looked at it before. I try
> to avoid hardware from promise whenever possible.

I did too, but their attitude towards Linux seems to have changed, and I
am pretty pleased with their SATA150 TX4.

Kind regards, Sander

--
Humilis IT Services and Solutions
http://www.humilis.net

2006-02-01 10:15:04

by Sander

[permalink] [raw]
Subject: Re: [OT] 8-port AHCI SATA Controller?

Roger Heflin wrote (ao):
> Highpoint has some that I believe are software raidish.
>
> They do have on-board parity generators that are used when
> you use there binary only modules.
>
> I have heard that they will work with later kernels (2.6.15+)
> since the highpoint are a standard Marvell chipset, and they
> seem to be fairly price competitive with JBOD raid controllers,
> and have some controllers that have more than 8 ports, the price
> per port may be better on the larger controllers.

Thanks for the tip. I'll do some research on the Highpoint controllers.

Kind regards, Sander

--
Humilis IT Services and Solutions
http://www.humilis.net

2006-02-01 10:18:27

by Sander

[permalink] [raw]
Subject: Re: [OT] 8-port AHCI SATA Controller?

Joshua Kugler wrote (ao):
> > > http://www.supermicro.com/products/accessories/addon/DAC-SATA-MV8.cfm

> I do too. However, I was trying to use a Supermicro P4SCi motherboard and it
> *would not boot* with two SX8 cards and more than 8 SATA drives hooked up,
> regardless of configuration (7 on one card, 2 on the other, etc). So, I had
> to find another eight port card. And besides, the MV8's are about half the
> price of the SX8's. :) So I went with what worked.

Hm, thanks for the tip :-) This seems a good one indeed. I try to dig
up some specs. Thanks!

Kind regards, Sander

--
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2006-02-01 14:43:33

by Roger Heflin

[permalink] [raw]
Subject: RE: [OT] 8-port AHCI SATA Controller?



> -----Original Message-----
> From: Sander [mailto:[email protected]]
> Sent: Wednesday, February 01, 2006 4:15 AM
> To: Roger Heflin
> Cc: 'Lennart Sorensen'; 'Sander';
> [email protected]; [email protected]
> Subject: Re: [OT] 8-port AHCI SATA Controller?
>
> Roger Heflin wrote (ao):
> > Highpoint has some that I believe are software raidish.
> >
> > They do have on-board parity generators that are used when you use
> > there binary only modules.
> >
> > I have heard that they will work with later kernels (2.6.15+) since
> > the highpoint are a standard Marvell chipset, and they seem to be
> > fairly price competitive with JBOD raid controllers, and have some
> > controllers that have more than 8 ports, the price per port may be
> > better on the larger controllers.
>
> Thanks for the tip. I'll do some research on the Highpoint
> controllers.
>
> Kind regards, Sander

Something important to note, if you need to use highpoints binary
driver (ie the one in the kernel is not quite working yet) - then you
will need to run a 2.6.13 or earlier kernel, their driver has some
issue with 2.6.14+ they are working on it.

I believe this also holds true of the Marvell drivers also, highpoints
driver is (from what I can tell) a modified Marvell driver with their
binary software raid support added on, so the Marvell driver *may* also
have an issue with the later kernels.

Roger


2006-02-01 16:12:35

by Bill Davidsen

[permalink] [raw]
Subject: Re: [OT] 8-port AHCI SATA Controller?

Joshua Kugler wrote:
> On Tuesday 31 January 2006 02:53, Sander wrote:
>
>>Hello,
>>
>>I'm looking for an 8-port SATA controller based on the AHCI chipset, as
>>according to http://linux.yyz.us/sata/sata-status.html#vendor_support
>>this chipset is completely open.
>>
>>I've searched the websides of the companies which according to
>>http://linux.yyz.us/sata/sata-status.html#ahci base some of their
>>products on this chipset, but I couldn't find an 8-port controller.
>>
>>I've also googled, but without success, hence this somewhat offtopic
>>message. Although I hope the response helps others in their quest.
>>
>>The question: does an 8-port AHCI based SATA controller exist? And if,
>>where can I find it? 12, 16 or 24 ports will do too. I don't need HW
>>raid, just JBOD.
>
>
> I've run some tests with this card under Linux and done pretty well:
>
> http://www.supermicro.com/products/accessories/addon/DAC-SATA-MV8.cfm
>
> They also have a 3.0Gb version.
>
> Not sure if that is AHCI, but it is eight port.
>
> I got the drivers here:
>
> http://www.keffective.com/mvsata/FC3/
>
> The latest was mvSata_Linux_3.6.1.tgz as of 2005-10-13.
>
> Hope that helps.

I get a "you do not have permission" using that link, for what it's worth.

--
-bill davidsen ([email protected])
"The secret to procrastination is to put things off until the
last possible moment - but no longer" -me

2006-02-01 19:16:20

by Joshua Kugler

[permalink] [raw]
Subject: Re: [OT] 8-port AHCI SATA Controller?

On Wednesday 01 February 2006 07:13, Bill Davidsen wrote:
> > I got the drivers here:
> >
> > http://www.keffective.com/mvsata/FC3/
> >
> > The latest was mvSata_Linux_3.6.1.tgz as of 2005-10-13.
> I get a "you do not have permission" using that link, for what it's worth.

Hmm...so you do. It was down for a while yesterday, so they might have some
configuration issues. This page works:

http://www.keffective.com/mvsata/

And this link does work:

http://www.keffective.com/mvsata/FC3/mvSata_Linux_3.6.1.tgz

They must have turned of indexes for directories. I e-mailed the owner of the
page.

j----- k-----

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