Re: IDE controllers

Andre M. Hedrick (hedrick@Astro.Dyer.Vanderbilt.Edu)
Sun, 1 Aug 1999 00:37:15 -0500 (CDT)


On Sat, 31 Jul 1999, Khimenko Victor wrote:

> In <37A24D6B.473ACFC3@periscope-systems.freeserve.co.uk> Jonathan C. Masters (mastersj@periscope-systems.freeserve.co.uk) wrote:
> > I hear Linux 2.4 will support 8 IDE controllers. I always thought that
> > you could only have 4 IDE drives. Since each controller can have two
> > drivers, does this actually mean I can have 16 drives? I say this

The new and final magic number is 10 hwifs and 20 devices.

> > becasue I have 4 drives at present and have no more capacity without
> > switching to more expensive SCSI devices. Besides, I need certain IDE
> > derivers to be added. How would I add the IDE board. I mean, if I add
> > another IDE controller board, does it have to be of a certain type/ wont
> > it assume the IRQs of the motherboard ones? etc... basically, can I just
> > go into my computer store, add a standard 20quid IDE board and it will
> > work? Thanks.
>
> No, you need board with different I/O ports range. IRQ's is not a problem AFAIK.

Listen to the above, he is correct.

Andre Hedrick
The Linux IDE guy

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