Hallo zusammen,
mir macht gerade die Datenübertragungsrate von meinem 9.04er Ubuntu auf eine externe USB-Festplatte (WD "My Passport" Essential) Probleme. Die Übertragung beginnt mit erfreulichen ~23 MB /sec und bricht nach einigen Minuten des Übertragens (ca. 30 GB an Audiokram) schrittweise auf ein paar kB /sec ein.
Gemounted ist die Platte folgendermaßen (Auszug aus /etc/fstab):
# My Passport UUID=70A4-8CCA /media/passport vfat rw,exec,users,suid,dev,async 0 0
Kernelversion ist 2.6.28.18
Hier der dmesg - Output:
[ 231.440034] usb 1-3: new high speed USB device using ehci_hcd and address 6 [ 231.629536] usb 1-3: configuration #1 chosen from 1 choice [ 231.678288] Initializing USB Mass Storage driver... [ 231.680642] scsi7 : SCSI emulation for USB Mass Storage devices [ 231.680998] usbcore: registered new interface driver usb-storage [ 231.681004] USB Mass Storage support registered. [ 231.736031] usb-storage: device found at 6 [ 231.736036] usb-storage: waiting for device to settle before scanning [ 236.736231] usb-storage: device scan complete [ 236.736816] scsi 7:0:0:0: Direct-Access WD 5000BEV External 1.75 PQ: 0 ANSI: 4 [ 236.740814] sd 7:0:0:0: [sdd] 976773168 512-byte hardware sectors: (500 GB/465 GiB) [ 236.793583] sd 7:0:0:0: [sdd] Write Protect is off [ 236.793591] sd 7:0:0:0: [sdd] Mode Sense: 23 00 00 00 [ 236.793623] sd 7:0:0:0: [sdd] Assuming drive cache: write through [ 236.794750] sd 7:0:0:0: [sdd] 976773168 512-byte hardware sectors: (500 GB/465 GiB) [ 236.795412] sd 7:0:0:0: [sdd] Write Protect is off [ 236.795417] sd 7:0:0:0: [sdd] Mode Sense: 23 00 00 00 [ 236.795420] sd 7:0:0:0: [sdd] Assuming drive cache: write through [ 236.795427] sdd: sdd1 [ 236.827378] sd 7:0:0:0: [sdd] Attached SCSI disk [ 236.827497] sd 7:0:0:0: Attached scsi generic sg4 type 0
Was mache ich falsch?