At 8:45 AM -0800 12/21/2008, Jeffrey Engle wrote:
>On Dec 21, 2008, at 8:39 AM, Bruce Johnson wrote:
>  > On Dec 21, 2008, at 9:23 AM, Jeffrey Engle wrote:
>  >> Here's the deal....
>>>
>>>  I have a 160gb hard drive external that I needed to partition then do
>>>  a secure erase.... not even 15 minutes into the erase, the warning
>>>  window comes up saying that I disconnected the drive! aAAAH! I
>  >
>>  Something caused the drive to drop off the bus. Flaky USB interface in
>  > the drive?
>
>Just curious, the drive enclosure has a Y-usb cable for power from the 
>usb ports on the macbook, if the "power side" was not plugged in,
>would that have anything to do with it?

One of the ways companies make their laptops have better battery life 
is by providing less power over the USB and Firewire type interfaces. 
heh. Apple is notorious for this.  If the drive has such an adapter, 
that's a clue -- the drive probably requires 90% or more of the 
"standard" power off that bus, and if your laptop isn't even 
providing that "standard"...  Running it without that being plugged 
in is just asking for trouble, IMO.

BTW, what's the point of partitioning the drive BEFORE doing the 
secure erase?  You want to make sure some part of the drive retains 
its old data, or is not exercised (depending on your purpose for said 
erase).

- Dan.
-- 
- Psychoceramic Emeritus; South Jersey, USA, Earth

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