In debian-user Thomas Kocourek wrote: >Paul Miller writes: >> >> I have a 6.4 WD UDMA drive installed now, maybe I should try it out. Is >> it worth it? >> >> BTW- the hdparm -t values for those IDE drives are approximately 1.05 >> megs/sec, 3.27 megs/sec, 8.51 megs/sec, respectively. > >Yep, those are about right. A SCSI-1 system is around 5 Megs/sec, A SCSI-2 >around 10 megs/sec, and SCSI-3 about 20 megs/sec. I believe a ultra-wide >SCSI-3 tops at 40 megs/sec. Anyone knowing better than I is invited to >enlighten/educate me. 8-)
I was going to correct you, but then I realized that there was no error in what you said. Since I know that there are a lot of people who will assume that system==drive, just let me note that the speeds you quote are the bus speeds. Most drives will never come very near those speeds (for example, my very fast Fujitsu 4.3 Go SCSI-2 7200 rpm drive will attain 8 MB/s, and I don't think drives with better interfaces (U, W, UW) will go very much better). The advantage, of course, is that if you have many drives, you are limited by the bus speed and not by the drive speeds. Hmm. Was this a troll, maybe? -- #include <std_disclaim.h> Lorens Kockum -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
