>
>
>On Thu, 10 Jul 1997, Christoph Lameter wrote:
>
>> In article <19970710123233.38080@test.legislate.com> you wrote:
>> : Vadim E. Kogan <vadim@vadim.biz-net.net> wrote:
>> : > 2. SCSI doesn't make big difference if you have enougth RAM
>>
>> : The impact of IDE on a web server with enough RAM isn't latency
>> : or transfer rate -- it's cpu lossage. With a typical IDE setup,
>> : you can drop packets from this.
>>
>> And that only happens if you have not configured the harddrive to either
>>
>> A. Use DMA
>>
>> B. allow interrupts during transfer (hdparm command)
>>
>> IDE is faster and more stable than SCSI especially with modern motherboards.
>>
> Try not to use absolutes, it indicates ignorance. Yes, in certian places
>IDE can be better.. But if you enable DMA on many current IDE drives you
>will risk corruption.. [..]
You not risk corruptions using DMA on IDE, the kernel use DMA as default
at boot (compiling the kernel with the Tritron Chipset support). You risk
HD corruption using -u flag of hdparm (but for me and all my friends works
fine :).
> [..]
Andrea Arcangeli