Adaptec Ultra 160MB/sec SCSI support for Linux

hooligan writes "This is an annoucement from Adaptec for support for their new transfer speed for Linux. Check the press release."

Comments

Bus???

[Jeff DeMaagd]

I assume that this beast sits on a 64 bit PCI bus? I seem to remember that 32 bit 33MHz PCI theoretically maxes out at 133MBps, and Intel chipsets seem to have a 80MBps upper limit.

I suppose that this is an argument for the newer Alpha systems as they have several independed PCI buses, each tested capable of 200MBps in 64 bit mode.

Redhat because Doug Ledford wrote it

[itamar]

Doug Ledford works for Redhat and he is the maintainer of the aic7xxx. So, yes, they do mean Redhat, and yes, it is in the standard kernel.

--
http://www.wholepop.com/
Whole Pop Magazine Online - Pop Culture

Re:What about FreeBSD?

[imp]

Yes. Justin Gibbs, FreeBSD core member and author of the FreeBSD scsi CAM subsystem, wrote the aic7xxx driver. He works closely with the Linux people who have ported his driver to Linux. Up until very recently, I worked with Justin. I saw him running this stuff a month or two ago while adding support for this....

Adaptec gives him excellent tech support... He has an impressive collection of adaptec cards in his office.

I don't know if he's actually committed these changes to the tree on freefall yet or not.

It's in there, man

[shambler snack]

My kernel sources, based on the web-available patches and Alan Cox (2.2.10-ac10), shows support for the Ultra 160/m in drivers/scsi/aic7xxx.c. I don't know when it showed up, but it's probably in the config scripts, so go buy one of the little Adaptec beasties and drop it in.

And yes, it is in the kernel, not just Red Hat. This is not a conspiracy to coopt Linux, this is marketing droids giving out comfortable data points that they can understand. I wonder if it's in FreeBSD as well?

When RAID?

[MindStalker]

My question is when is Adaptec going to start supporting RAID for linux. I have yet to see a competent way of using Adaptec's RAID adapter for RH 6.0. Adaptec makes almost the best raid drives out there, but if I can't use them I can't buy them.

Re:Embedded?

[SirShadowlord]

Update: Darrin Johnson (of Adaptec) has written with the following information:

" The source code for the new drivers (which by the way was developed by the "community") is and will
always be available and should by now have found it's way into the core Linux code. Although we did our
initial effort with Redhat the code will migrate quickly into all of the distributions. "

Re:God Damn It!

[journey-]

Well, it sounds (at least from the stuff I've seen) that adaptec didn't write the stuff, they just let the people see the specs. It would make sense that if someone was willing to write BeOS drivers, that adaptec could probably get them the information they need.
Even if adaptec didn't want to, with the FreeBSD and Linux drivers being open source, it would make sense that you could get one working(perhaps not at full utilization though) without any help from adaptec.
Thats just what it seems like to me though...

Erik -- journey

Read What Alan Cox had to Say about it...

[Anonymous Coward]

This is what Alan Cox wrote about it at
http://linuxtoday.com/talkback/25240.html
------------------------------------------------ -
Red Hat 6 ships with the source code to all the
included drivers in the kernel it ships with. The
code is afaik all in recent aic7xxx drivers from
any source.

Alan
------------------------------------------------ -
In short:

1. It is not new.
2. It is not unique to RH.

And let me add, that even if its production will
start soon, don't expect prices lower than $1000.
Add to it the high prices of fast SCSI disks (it's
stupid to attach a slow disk to SCSI/160), and you
end up with prices of supercomputers.

Eli Marmor