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Old 11-22-2007, 02:59 PM   #1
LQ Newbie
Registered: Nov 2007
Posts: 2

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Unable to move files to SCSI USB enclosure


I'm going crazy over this issue. I have a USB enclosure with a 120GB drive that has a ext3 and a NTFS partition. I can see both partitions and I can access them and I can also copy small files to the drive (at least around 3 MB) - but I can't copy large files to it (at least not over like 60 MB)!! I have tried several times but every time I get the same problem: the copy process hangs and I can't do anything on the drive until I restart the computer. I can't even unmount the device since the system says that it is busy. How can this be possible?!?

The enclosure is a USB 2.0 device. this is what lsusb says:

Bus 002 Device 005: ID 04b4:6830 Cypress Semiconductor Corp. USB-2.0 IDE Adapter
Bus 002 Device 001: ID 0000:0000

And this is what dmesg says right after I hook it up:
usb 2-1: new high speed USB device using ehci_hcd and address 8
usb 2-1: new device found, idVendor=04b4, idProduct=6830
usb 2-1: new device strings: Mfr=0, Product=57, SerialNumber=44
usb 2-1: Product: Cypress AT2LP
usb 2-1: SerialNumber: 000008E57162
usb 2-1: configuration #1 chosen from 1 choice
scsi9 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 8
usb-storage: waiting for device to settle before scanning
scsi 9:0:0:0: Direct-Access Maxtor 6 L160P0 0000 PQ: 0 ANSI: 0
sd 9:0:0:0: [sdb] 320173056 512-byte hardware sectors (163929 MB)
sd 9:0:0:0: [sdb] Write Protect is off
sd 9:0:0:0: [sdb] Mode Sense: 27 00 00 00
sd 9:0:0:0: [sdb] Assuming drive cache: write through
sd 9:0:0:0: [sdb] 320173056 512-byte hardware sectors (163929 MB)
sd 9:0:0:0: [sdb] Write Protect is off
sd 9:0:0:0: [sdb] Mode Sense: 27 00 00 00
sd 9:0:0:0: [sdb] Assuming drive cache: write through
sdb: sdb1 sdb2
sd 9:0:0:0: [sdb] Attached SCSI disk
sd 9:0:0:0: Attached scsi generic sg2 type 0
usb-storage: device scan complete
kjournald starting. Commit interval 5 seconds
EXT3 FS on sdb1, internal journal
EXT3-fs: mounted filesystem with ordered data mode.

Thanks for any help!!

Also while I'm still at it can somebody tell me if I can destroy the HD by doing trial and error "experiments" like trying to copy files and then pull the cable out in rage after the system hangs??? (... not that i'd do that... but in case someone else would - then it would be good to know...)
Old 11-22-2007, 10:00 PM   #2
Misbah Naveed
Registered: Oct 2007
Posts: 41

Rep: Reputation: 15
i want to do unable usb flash from automounting so that i could see that the module i have loaded for usb is working properly.
waiting 4 reply


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