Hi list,<div><br></div><div>I use fedora 12 on a dell inspiron 1545 laptop. (2.6.31.12-174.2.22.fc12.x86_64).</div><div>i have a external usb hd and i can't make it connect like a usb 2.0 device.</div><div>this device is ntfs format</div>
<div><br></div><div>I check if the device is using ehci (dmesg after i plug the device)</div><div><div>[root@localhost ~]# dmesg | grep USB</div><div>usb 2-2: new high speed USB device using ehci_hcd and address 2</div></div>
<div><br></div><div>I check if this device is connected on a usb 2.0 </div><div><div>[root@localhost ~]# lsusb</div><div>Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub</div><div>Bus 002 Device 015: ID 0471:2021 Philips </div>
<div>Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub</div></div><div><br></div><div>I mount the device with this options:</div><div>/dev/sdc1 on /media/hd_backup type fuseblk (rw,nosuid,nodev,allow_other,blksize=4096)</div>
<div><div><br></div><div>but when i use cp, mv or rsync, the max speed i get is max 6MB/s (a lot 800kB/s).</div><div>If i use this device on Windows (tested with Vista and Seven), i get much high transfer rate.</div><div>
I read about sync and async options, but if i put sync or async on fstab, it does not alter the transfer rate.</div><div><br></div><div>Is this the normal upload transfer rate? I am doing something wrong?</div><div><br></div>
<div>[]'s</div>Luigi Castro Cardeles<br>
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