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ATA/66 (was: Re: NFS recommendation)



> > As for an ATA/66 card, we may get one later, but only because we may need more
> > disks. AFAIK, it already has a Linux driver.
> 
> I would hardly even attempt to compare the NetApp WAFL file system, and
> the NetApp RAID with what you are going to offer. The ATA/33 IDE
> controllers and the Linux ext2fs are hardly any match to what NetApp
> offers. The avg. seek you get on NetApp due to the nature of WAFL is ~2ms.
> The way it writes and reads gives you ALOT of performance improvement on
> read/write opperations. So, due to inferior hardware (IDE) and filesystem
> (ext2fs), at least try to add some speed (ATA/66).

BTW: Is ATA/66 supported by Linux?  I remember that even the 33 made
some problems in the beginning, and only after a while, was supported
correctly. Do I need a specific kernel?  A specific driver?  A
specific card?  ("supported" doesn't mean that "it works, but with
the old speed of 33MHz", but that "it works with a speed of 66MHz").

And still in this subject, but a little off-topic: Is there any
motherboard with a built-in support for ATA/66?  I see a lot of ads
of various companies (Chip, ExcellNet, Neuron, etc.) which claim that
they support 66MHz. Since you need support for this speed not only on
the disk side but also in the motherboard and/or PCI card's side, I
guess that EITHER they have such motherboards, OR their
configurations include that PCI card (which is not reasonable with a
price of $70 which is about 340 NIS, considering that prices of some
of the systems are 3000-4000 NIS including everything), OR they just
lie^H^H^H try to confuse us.

I noticed that IBM released an amazing disk, with 22GB, Ultra-ATA/66,
and 7200 RPM, with a price tag (US) of about $350. Does anybody know
anything about it?  Should I expect any problem with Linux?

Thanks,
-- 
Eli Marmor