[AccessD] FW: External Hard Drive

I've noticed several new devices lately have dual plugs in case they are
underpowered by the single connection.  I've got a hub and two USB
drives like this.

Charlotte Foust 

-----Original Message-----
From: accessd-bounces at databaseadvisors.com
[mailto:accessd-bounces at databaseadvisors.com] On Behalf Of Dan Waters
Sent: Wednesday, March 28, 2007 9:35 AM
To: 'Access Developers discussion and problem solving'
Subject: [AccessD] FW: External Hard Drive

Insufficient power was the problem!

This case actually has a cable with two usb plugs.  I didn't need to
plub in the secondary one before, but using it now solves the problem.

Thanks!
Dan

-----Original Message-----
From: Dan Waters [mailto:dwaters at usinternet.com]
Sent: Wednesday, March 28, 2007 9:37 AM
To: 'Discussion of Hardware and Software issues'
Subject: External Hard Drive

I have an external HD that I use with Ghost 9.0 as a backup device.  The
disk is a 60 Gb laptop disk in a Nexstar case.  This is USB powered, and
is fairly nice.

All went well until I changed from a 4 port D-link hub to a 7 port
D-link hub.  Now, when my laptop powers up automatically at 5 AM to run
the backup program, the laptop can't find the external HD (it did
before).  Once I unplug and reattach the USB cables to the HD, the
laptop will then recognize the external HD, and I can start the backup
program.

Also, once the HD is recognized, I can tell from the flashing light that
the laptop is constantly trying to write to the HD, although it doesn't
write anything and there are no programs running that should cause this.
And, when I was previously connected through the 4 port hub, the light
was a solid green.

I wouldn't think that a change in USB hubs would actually trigger this.
But what could cause this problem?

Thanks!
Dan

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