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Re: ATA/66 (was: Re: NFS recommendation)
On Sun, 06 Jun 1999 04:20:19 +0300, Eli Marmor <marmor@elmar.co.il> wrote:
>BTW: Is ATA/66 supported by Linux? I remember that even the 33 made
Well, the Promise ATA/66 card has a preliminary driver (found it by searching
on www.dejanews.com, but it was probably announced in the kernel list).
>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").
I haven't used an ATA/66 drive yet, but I was told it needs a special cable
(better shielding??). Can anyone confirm this?
Also, according to what I've read in www.storagereview.com (another great web
site), some ATA/66 disks (if not most) may have problems working in ATA/33
systems unless a special program (specific to each manufacturer) is run once,
to set the drive to default to ATA/33, or something like that. Anyone has more
details on that?
>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
The 440xx/450xx chipsets (or actually the PIIX chips) do not support ATA/66,
but one of the new Intel 810 chipsets does (not the cheapest one).
There are also some chipsets by ALI, VIA (and probably the upcoming AMD
chipset for the K7) supporting this.
>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 don't know about a specific system, but as I wrote, some of the non-Intel
chipsets do have ATA/66, even though they can't generally compete with Intel
as far as general chipset performance goes. (See the recent VIA 133MHz front
side bus chipset review at www.tomshardware.com).
>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?
Well, I'll let you know in a day or two. We get our 3x22GB/7200RPM combo
tomorrow... (no ATA/66 card though... We plan running it in 33MHz for the time
being).
Udi