Re: IDE PIIX vs libata piix with software raid

[Jeff Garzik <jgarzik@pobox.com>]

David Lewis wrote:
> Greetings,
>
> I am developing a system using the Intel SE7520BD2 motherboard. It has an
> ICH5 with two SATA ports and one PATA channel. I am able to drive the PATA
> channel with either the normal PIIX IDE driver or the libata driver which I
> am using for the SATA ports. Ultimately all 4 ports will be in use with the
> md driver creating a stripe volume (RAID0) that spans a partition on each of
> the 4 drives (not for boot).
>
> My question is, what is the recommended driver to use for the PATA channel?
> Is it better to let libata support both types of drives, or use the IDE
> driver for the PATA? Searching I have found that the support is there in
> libata for the PATA channel (and I have it working on the system), but I
> can't find a clear recommendation on which driver is considered 'better' in
> this situation.

If you're just using hard drives, there should be no problem using 
libata for both PATA and SATA.

However, in general, the IDE driver (CONFIG_IDE) is recommended for PATA.

	Jeff



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