Re: IDE/ATAPI

From: Andre Hedrick (andre@linux-ide.org)
Date: Sat Apr 22 2000 - 06:33:24 EST


On Wed, 19 Apr 2000, Mark Hahn wrote:

>
> first, let me apologize for reincarnating this thread; I assumed
> that everyone realized that modern IDE is quite usable, that is,
> busmastering, supports scatter-gather, CRC's in UDMA mode, etc.

THANK YOU!!!!!!!!!!

> DMA/UDMA ide has _no_ problem with CPU load, nor with page faults
> during cdrom transactions. as for the disconnect feature, sure,
> only a few recent IBM disks support it. if it helps you sleep,
> just ignore the existence of IDE slaves entirely.
>
> summary: current IDE disks sustain 15-30 MB/s with minimal overhead,
> with cost asymptotic to $US 8/GB. current SCSI disks are even faster,
> and certainly superior for many-device systems, but have both higher
> entry cost (controllers), and cost 2-3x per GB.

DIE THREAD..........

Andre Hedrick
The Linux ATA/IDE guy

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