On Wed, 2009-01-28 at 17:19 -0600, Mikkel L. Ellertson wrote: > You may want to take a look at /var/log/messages after plugging the > USB key in and see what speed the USB key is talking at. Seems to me the kernel is detecting the USB key correctly and as a USB 2.0 device: kernel: usb 1-5: new high speed USB device using ehci_hcd and address 5 kernel: usb 1-5: configuration #1 chosen from 1 choice kernel: scsi11 : SCSI emulation for USB Mass Storage devices kernel: usb 1-5: New USB device found, idVendor=13fe, idProduct=1f00 kernel: usb 1-5: New USB device strings: Mfr=1, Product=2, SerialNumber=3 kernel: usb 1-5: Product: DataTraveler 2.0 kernel: usb 1-5: Manufacturer: Kingston kernel: usb 1-5: SerialNumber: 5B850800007E kernel: scsi 11:0:0:0: Direct-Access Kingston DataTraveler 2.0 PMAP PQ: 0 ANSI: 0 CCS kernel: sd 11:0:0:0: [sdd] 15671296 512-byte hardware sectors (8024 MB) kernel: sd 11:0:0:0: [sdd] Write Protect is off kernel: sd 11:0:0:0: [sdd] Assuming drive cache: write through kernel: sd 11:0:0:0: [sdd] 15671296 512-byte hardware sectors (8024 MB) kernel: sd 11:0:0:0: [sdd] Write Protect is off kernel: sd 11:0:0:0: [sdd] Assuming drive cache: write through kernel: sdd: sdd1 kernel: sd 11:0:0:0: [sdd] Attached SCSI removable disk kernel: sd 11:0:0:0: Attached scsi generic sg4 type 0 > You may > want to look at /proc/bus/usb/devices to check the same thing. And I see the speed as "480" here too: T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh= 6 I'm starting to think something is not quite right with the USB key (or in the way it's being detected): I tested transferring files to my PSP, but didn't see any of the same speed issues. I was able to copy large files back and forth without any problems. I should also add that after retesting the key with my HP laptop running Fedora 10, the max speed I saw was 8 MBps. The transfers would start off in the 20+ MBps range, and then drop down to 8 MBps. That's faster than my desktop, but it's still dismal performance. I need to try the stick on a Windows machine next. I'm hoping I can eliminate the USB key as the source of the problem. Regards, Ranbir -- Kanwar Ranbir Sandhu Linux 2.6.27.12-170.2.5.fc10.x86_64 x86_64 GNU/Linux 17:58:50 up 3 days, 19:10, 2 users, load average: 0.12, 0.15, 0.15 -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
