----- Original Message ----- > On Mon, 24 Oct 2011, Simon Detheridge wrote: > > > Hello, > > > > I'm having trouble accessing a 3TB external drive. I have an IcyBox > > IB-351 series (IB-351StU3-B) external USB SATA enclosures. When I > > connect a 3TB external drive to my server (Ubuntu Server 10.04) and > > try to access it, it hangs completely. For example, running parted, > > mounting a partition, or running badblocks. It just hangs and I > > usually have to kill -9 the process. > > > > It works just fine when I use the 750GB drive in the enclosure. The > > enclosure and drive work just fine with a 3TB drive when hooked up > > to a Windows PC (Server 2008R2 64-bit). I have tried on two > > different Ubuntu servers with completely different chipsets, and I > > see the same results. > > > > I've only used prebuilt kernel binaries from Ubuntu, including some > > backports. I've tried: 3.0.0-12, 2.6.32-30, 2.6.32-34, and > > 2.6.38-11. Results were the same on all versions. All were 64-bit. > > > > Usually when I connect the external drive, I see something like this > > in dmesg: > > > > [685772.270020] usb 1-4: new high speed USB device using ehci_hcd > > and address 6 > > [685772.426961] usb 1-4: configuration #1 chosen from 1 choice > > [685772.427386] scsi4 : SCSI emulation for USB Mass Storage devices > > [685772.427509] usb-storage: device found at 6 > > [685772.427514] usb-storage: waiting for device to settle before > > scanning [685777.421648] usb-storage: device scan complete > > [685781.621724] scsi 4:0:0:0: Direct-Access WDC WD30 EZRX-00MMMB0 > > 80.0 PQ: 0 ANSI: 2 > > [685781.622341] sd 4:0:0:0: Attached scsi generic sg3 type 0 > > [685781.626581] sd 4:0:0:0: [sdc] Very big device. Trying to use > > READ CAPACITY(16). > > [685781.627079] sd 4:0:0:0: [sdc] 5860533165 512-byte logical > > blocks: (3.00 TB/2.72 TiB) > > [685781.627827] sd 4:0:0:0: [sdc] Write Protect is off > > [685781.627831] sd 4:0:0:0: [sdc] Mode Sense: 00 06 00 00 > > [685781.627834] sd 4:0:0:0: [sdc] Assuming drive cache: write > > through [685781.632076] sd 4:0:0:0: [sdc] Very big device. Trying to > > use READ CAPACITY(16). > > [685781.633201] sd 4:0:0:0: [sdc] Assuming drive cache: write > > through [685781.633450] sdc: unknown partition table > > [685781.652453] sd 4:0:0:0: [sdc] Very big device. Trying to use > > READ CAPACITY(16). > > [685781.653577] sd 4:0:0:0: [sdc] Assuming drive cache: write > > through [685781.653828] sd 4:0:0:0: [sdc] Attached SCSI disk > > [685812.071907] usb 1-4: reset high speed USB device using ehci_hcd > > and address 6 > > [685844.101896] usb 1-4: reset high speed USB device using ehci_hcd > > and address 6 > > [685876.100648] usb 1-4: reset high speed USB device using ehci_hcd > > and address 6 > > [685908.100650] usb 1-4: reset high speed USB device using ehci_hcd > > and address 6 > > [685940.101897] usb 1-4: reset high speed USB device using ehci_hcd > > and address 6 > > [685972.160666] usb 1-4: reset high speed USB device using ehci_hcd > > and address 6 > > [685973.316165] sd 4:0:0:0: [sdc] Unhandled error code > > [685973.316170] sd 4:0:0:0: [sdc] Result: hostbyte=DID_ABORT > > driverbyte=DRIVER_OK [685973.316175] sd 4:0:0:0: [sdc] CDB: > > Read(16): 88 00 00 00 00 01 5d 50 a3 00 00 00 > > [685973.316188] end_request: I/O error, dev sdc, sector 5860532992 > > > Any ideas as to what I can do to make this work? > > The best way to start is to get a usbmon trace. There are instructions > in the kernel source file Documentation/usb/usbmon.txt. Thanks for your reply. I ran usbmon, and inserted the drive. I didn't run any further commands after insertion, just watched to see what happened. Dmesg said this: http://pastebin.com/3v2ihQic Meanwile, usbmon said: http://pastebin.com/38ZxSg6d (I have no idea what any of that means!) Thanks, Simon -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
