List of fake vs. real SATA drives.

[Gary Jennejohn]

Charles Sprickman writes:
> I don't know how much of it to believe, since it is marketing material,=20
> but the Seagate white paper on their site claims that all the=20
> command-queueing stuff brings the performance very close to that of scsi.
> 

In my experience ATA drives really lack when it comes to seek times
and contention, e.g. heavy copying between 2 drives while trying to
do normal accesses to one of them. SCSI drives somehow manage to more
gracefully handle that sort of thing. Probably a benefit of the Tagged
Queuing which they pretty much all support.

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Gary Jennejohn / garyj[at]jennejohn.org gj[at]freebsd.org garyj[at]denx.de