Messages in this thread | | | Date | Sat, 13 Nov 2004 09:27:46 -0800 (PST) | From | Joel Jaeggli <> | Subject | Re: New HDD (was RE: PROMISE Ultra133 TX2 (PDC20269)) |
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On Sat, 13 Nov 2004, Enrico Bartky wrote:
> Now I have attached a 80 GB UDMA5 Disk. The hdparm putput says the right > UDMA Mode (5). But the hdparm test, I run it 3 times, says 27 MByte/s!? > Is that normal, or is my motherboard ( Gigabyte GA-5AA ) to old ( PCI > Bus = 33 MHz ). In the manuel from promise there is it described that 33 > MHz have bandwith of 133 MByte/s and with 66 MHz 266 MByte/s.
27MB/s is reasonable for a 7200rpm ide disk that isn't totaly state of the art (ie 100GB per platter or something). what were you expecting? That's a pentium era mainboard is it not?
a similar disk (40GB single platter wester digital 7200rpm) in and amd 64 box I have is:
[root@twin joelja]# hdparm -t /dev/hda
/dev/hda: Timing buffered disk reads: 102 MB in 3.05 seconds = 33.43 MB/sec
the sata 80GB per platter disk in the same box is:
[root@twin joelja]# hdparm -t /dev/sda1
/dev/sda1: Timing buffered disk reads: 150 MB in 3.02 seconds = 49.71 MB/sec
> Can you help me, how can I get more transfer rates? > > Thanx, EnricoB > ________________________________________________________________ > Verschicken Sie romantische, coole und witzige Bilder per SMS! > Jetzt neu bei WEB.DE FreeMail: http://freemail.web.de/?mc=021193 > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ >
-- -------------------------------------------------------------------------- Joel Jaeggli Unix Consulting joelja@darkwing.uoregon.edu GPG Key Fingerprint: 5C6E 0104 BAF0 40B0 5BD3 C38B F000 35AB B67F 56B2
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