Re: How to improve db performance with $7K?

Mohan, Ross wrote:
> The only part I am pretty sure about is that real-world experience shows SCSI is better for a mixed I/O environment.
Notsure why, exactly, but the command queueing obviously helps, and I am not sure what else does. 
>
> ||  TCQ is the secret sauce, no doubt. I think NCQ (the SATA version of per se drive request reordering)
>    should go a looong way (but not all the way) toward making SATA 'enterprise acceptable'. Multiple
>    initiators (e.g. more than one host being able to talk to a drive) is a biggie, too. AFAIK only SCSI
>    drives/controllers do that for now.

What is 'multiple initiators' used for in the real world?

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