Ext USB box PS dies and messes up HD

[Gerald Abrahamson]

Was using Plumax external 5.25" USB2 box with HD in it (reading only,
not writing) when the PS on the USB box went POP!!! Removed HD and
tried other devices in its place--they also did not power up.

Plugged the HD directly into the main system and it is recognized--so
far, so good. Comes up as D (which is correct).

C&D are both 30gb Quantum LCT drives, bought at the same time, and are
about 2 yrs old.

When I click on the D-drive icon, I get the dir, but it is not showing
what I should get.

Directories and files are shown--but names are funny (like _D___,
v__v, .1212222, etc). When I try to open anything on D, it says the
file or folder does not exist.

Bad FAT, IMO, as the problem happened as I was looking for some info
on the drive.

Anyway, I have not run anything to try to fix the drive--just looked
at drive contents from the My Computer icon. I don't trust Scandisk
<g>--except for it to usually do what I don't want it to do.

Any recommendations as to what might repair the problem and restore
the directories/files/etc?

Regards, Jerry

 

[Rod Speed]

Was using Plumax external 5.25" USB2 box with HD in it (reading only,
not writing) when the PS on the USB box went POP!!! Removed HD
and tried other devices in its place--they also did not power up.

Plugged the HD directly into the main system and it is recognized
--so far, so good. Comes up as D (which is correct).

C&D are both 30gb Quantum LCT drives, bought
at the same time, and are about 2 yrs old.

When I click on the D-drive icon, I get the
dir, but it is not showing what I should get.

Directories and files are shown--but names are funny
(like _D___, v__v, .1212222, etc). When I try to open
anything on D, it says the file or folder does not exist.

Bad FAT, IMO,

Much more likely to be a partially fried logic card, partially fried
when the power supply died. Thats almost certainly what is
scrambling the data from the drive, producing that effect with
file and folder names. Likely the error isnt consistent in the
sense that repeated refreshes of the same folder will see the
errors in a particular file name vary from refresh to refresh.

as the problem happened as I was
looking for some info on the drive.

Just reading shouldnt corrupt the FAT.

Anyway, I have not run anything to try to fix the drive--just looked
at drive contents from the My Computer icon. I don't trust Scandisk
<g>--except for it to usually do what I don't want it to do.

Any recommendations as to what might repair
the problem and restore the directories/files/etc?

A logic card swap from a known good identical
model may well be all thats necessary.

 

[Eric Gisin]

Your disk geometry does not match between usb and ide. Is your drive type set
to auto?

| Was using Plumax external 5.25" USB2 box with HD in it (reading only,
| not writing) when the PS on the USB box went POP!!! Removed HD and
| tried other devices in its place--they also did not power up.
|
| Plugged the HD directly into the main system and it is recognized--so
| far, so good. Comes up as D (which is correct).
|
| C&D are both 30gb Quantum LCT drives, bought at the same time, and are
| about 2 yrs old.
|
| When I click on the D-drive icon, I get the dir, but it is not showing
| what I should get.
|
| Directories and files are shown--but names are funny (like _D___,
| v__v, .1212222, etc). When I try to open anything on D, it says the
| file or folder does not exist.
|
| Bad FAT, IMO, as the problem happened as I was looking for some info
| on the drive.
|
| Anyway, I have not run anything to try to fix the drive--just looked
| at drive contents from the My Computer icon. I don't trust Scandisk
| <g>--except for it to usually do what I don't want it to do.
|
| Any recommendations as to what might repair the problem and restore
| the directories/files/etc?
|

 

[Rod Speed]

Your disk geometry does not match between
usb and ide. Is your drive type set to auto?

Shouldnt produce that effect with partially mangled file and folder names.

You can usually take a non failed drive out of a USB
enclosure and stick it in the PC and see the contents fine.

 

[Gerald Abrahamson]

Your disk geometry does not match between usb and ide. Is your drive type set
to auto?

Yes--always on auto. I simply stuck the HD into the USB box and it
worked (with all existing data seen) when I turned on the USB box.
Copied data from the USB drive to main drive a while ago--ran fine.

 

[Eric Gisin]

|
| |
| > Your disk geometry does not match between
| > usb and ide. Is your drive type set to auto?
|
| Shouldnt produce that effect with partially mangled file and folder names.

They are completely mangled, the root is pointing to junk.
|
| You can usually take a non failed drive out of a USB
| enclosure and stick it in the PC and see the contents fine.
|
That's what he did, Rodney.

 

[Rod Speed]

|
| |
| > Your disk geometry does not match between
| > usb and ide. Is your drive type set to auto?
|
| Shouldnt produce that effect with partially mangled file and folder names.

They are completely mangled, the root is pointing to junk.

Should produce that effect when moving a non failed drive out of
a USB enclosure and sticking it in the PC. That usually works fine.

| You can usually take a non failed drive out of a USB
| enclosure and stick it in the PC and see the contents fine.

That's what he did, Rodney.

Duh, but that was AFTER the power
supply had failed in the enclosure, stupid.

 

[Folkert Rienstra]

And neither would it produce that effect with a defective interface board.

They are completely mangled, the root is pointing to junk.

Looks like it. That or the directory was itself 'junked'.

 

[Rod Speed]

|
| |
| > Your disk geometry does not match between
| > usb and ide. Is your drive type set to auto?
|
| Shouldnt produce that effect with partially mangled file and folder names.

They are completely mangled, the root is pointing to junk.

Shouldnt produce that effect when moving a non failed drive out of
a USB enclosure and sticking it in the PC. That usually works fine.

| You can usually take a non failed drive out of a USB
| enclosure and stick it in the PC and see the contents fine.

That's what he did, Rodney.

Duh, but that was AFTER the power
supply had failed in the enclosure, stupid.