USB2.0 External Hard Drive Problem

lonb · Oct 21, 2006, 01:34 AM

I have a LaCie Biggest F800. This is a USB2.0-connected RAID drive. I have
three computers. Computer #1 runs WinXP Pro SP2. THis is where the drive
was connected. It works fine there, formatted with NTFS, no security.

If I plug it in to computer #2, which runs WinXP Pro SP1 it is recognized
and works fine (automatically assigned a drive letter and is readable). This
helps to confirm it's not a security issue.

If I plug it in to computer #3, which runs WinVista Beta RC2 it is
physically recognized-- i.e. the device manager recognizes the device
(including the name "LaCie Biggest F800"). However, that's where the OS
stops working correctly. ~50% of the time the disk management console does
not display the disk at all. While sometimes, diskmgmt does display the
disk, but marks the type and status as "unknown".

- There is no right-click option to assign a drive letter
- I have tried rebooting (with the drive connected and not connected)
- I have tried various USB ports
- I have connected the drive powered up and powered down
- I have tried disabling UAC
- I have tried contacting LaCie... they do not officially support vista at
this time.

After stumping my IT colleagues... any help would be GREATLY appreciated!!

Best,

Lon

PangingJr · Oct 21, 2006, 07:23 PM

have you tried this?

Quote:

http://www.lacie.com/support/faq/index.htm

My Big Disk doesn’t mount or is not detected. The System Profiler on my Mac or Device Manager on Windows lists it as unknown with the name TUSB6250 Boot Device.

Please try the following:

# Disconnect all cables connected to the drive.
# Connect the power cable to the drive.
# Connect the USB-cable. First to the drive. Then to the computer.

If the drive is detected correctly the problem was probably caused by improper shutdown or un-mount (unplugging the cable without dismounting first, etc.). When this has happened, the USB-interface needs to reset itself properly. After this, reconnection should be no problem.

10285

lonb · Oct 22, 2006, 04:40 PM

Thanks for responding.

Yes. I thoroughly read the entire lacie.com site =)

Oct 21, 2006, 01:34 AM	#1
lonb DriverHeaven Newbie Join Date: Oct 2006 Posts: 2 Rep Power: 0	USB2.0 External Hard Drive Problem I have a LaCie Biggest F800. This is a USB2.0-connected RAID drive. I have three computers. Computer #1 runs WinXP Pro SP2. THis is where the drive was connected. It works fine there, formatted with NTFS, no security. If I plug it in to computer #2, which runs WinXP Pro SP1 it is recognized and works fine (automatically assigned a drive letter and is readable). This helps to confirm it's not a security issue. If I plug it in to computer #3, which runs WinVista Beta RC2 it is physically recognized-- i.e. the device manager recognizes the device (including the name "LaCie Biggest F800"). However, that's where the OS stops working correctly. ~50% of the time the disk management console does not display the disk at all. While sometimes, diskmgmt does display the disk, but marks the type and status as "unknown". - There is no right-click option to assign a drive letter - I have tried rebooting (with the drive connected and not connected) - I have tried various USB ports - I have connected the drive powered up and powered down - I have tried disabling UAC - I have tried contacting LaCie... they do not officially support vista at this time. After stumping my IT colleagues... any help would be GREATLY appreciated!! Best, Lon

Oct 22, 2006, 04:40 PM	Thread Starter #3
lonb DriverHeaven Newbie Join Date: Oct 2006 Posts: 2 Rep Power: 0	Thanks for responding. Yes. I thoroughly read the entire lacie.com site =)