Messages in this thread | | | Date | Sun, 6 Dec 1998 20:59:09 +1000 (AEST) | From | Leonard Zhang System Administrator ISD RVIB <> | Subject | Re: Dumb question: Which is "better" SCSI or IDE disks? |
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Please don't multiple post, I already got it.
Leonard
On Sat, 5 Dec 1998, Rik van Riel wrote:
> On Sat, 5 Dec 1998, Leonard Zhang System Administrator ISD RVIB wrote: > > > 1. Some hard disk manufactures are using same disk drive > > (physically) to make SCSI and ATA. They only change the PCB board. > > And together with that they change the cache and add far > superior firmware than the crap they put on the IDE disk. > > > 2. SCSI-1 and SCSI-2 have 8 bit data bus, while ATA have 16 bit data > > bus. > > Irrellevant and not always true. SCSI utilizes the bus much > more efficiently (disconnect/reconnect) so the effective > bandwidth is usually more with SCSI. > > > 3. ATA got disk cache built in as well. > > But it is usually far less cache and ATA doesn't provide > the logic infrastructure to actually use it in an intelligent > way (although IDE write caching has improved things a little > bit). You lose another data point for the fact that IDE > cache firmware often is almost braindead. > > > 4. Some low end of SCSI host card is only 8 Bit card. > > Some low end IDE drives are slow -- what's your point? > > We are comparing the equipment of TODAY. It would be > total nonsense to compare IDE stuff from today with > 1991's SCSI controllers... > > The way you are comparing IDE and SCSI is just too biassed > to be taken seriously -- please make a more balanced > judgement next time... > > regards, > > Rik -- the flu hits, the flu hits, the flu hits -- MORE > +-------------------------------------------------------------------+ > | Linux memory management tour guide. H.H.vanRiel@phys.uu.nl | > | Scouting Vries cubscout leader. http://www.phys.uu.nl/~riel/ | > +-------------------------------------------------------------------+ > > > - > To unsubscribe from this list: send the line "unsubscribe linux-scsi" in > the body of a message to majordomo@vger.rutgers.edu >
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