Switchover to CAM ATA?
mav at FreeBSD.org
Tue Apr 27 14:00:16 UTC 2010
Dag-Erling Smørgrav wrote:
> Maxim Sobolev <sobomax at FreeBSD.org> writes:
>> Richard Tector <richardtector at thekeelecentre.com> writes:
>>> Could I also add that the removal of ataraid would affect those
>>> users who dual-boot with Windows and rely on the psuedo-raid
>>> provided by most Intel chipsets to be able to share the same pair of
>> Well, this won't be a problem if we have GEOM classes that can
>> understand metadata created by the ATA RAID BIOS(es).
> Most pseudo-raid kit has nifty features like checksum offloading,
> composite writes etc. which can improve performance considerably. You
> can't access those from GEOM.
Have you ever seen them documented? Does the need to specifically handle
dozens of incompatible implementations with limited resources worth
those (probably not major) benefits?
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