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Old 10-19-2005, 08:17 AM   #1
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Registered: Oct 2005
Distribution: centos
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external usb hard drive automatic power down?


I want to purchase an external USB harddrive for backups. I want to keep the harddrive in a secure place (fire safe) *all* the time. I will run the usb & power cables into the safe.

I need to be able to power-on the device before backup and power it off afterwards. It can't run all the time because the heat will build up in the safe.

Any ideas??
Old 10-19-2005, 03:33 PM   #2
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Just pulling the power plug making sure to unmount the drive prior to pulling power.

But, I would be worried that closing the door will damage the power cord and or USB wire. If you could wrap the cords to prevent damage then the door might not seal properly to prevent smoke,fire and water damage.

Another method would be to (if possible) provide an access hole for wires in the safe that could be sealed. However, it would not make the safe 100% fireproof anymore either.

The third method would be to have several backup disks and have an offsite storage facility. Then Rotate the disks on a daily or weekly basis.
Old 10-20-2005, 01:57 AM   #3
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Yes, I would provide an access hole for the cabling. Much the same as the holes for the bolts into the wall. I will certainly look for a mechnism of sealing it properly and put it on the wall side of the safe, to minimize the risk.

However, I don't want to manually do anything ... if I have to do something then it ends up not happening ;-) I want automatic backups to a device in my safe.

So either:
* the drive must go into powersave mode,
* or via the usb to cradle i should be able to say "power off/on",
* or via a usb to a plug unit which i can switch on/off via usb/serial...

Or maybe in a big gun safe the heat will not be an issue at all? I can't find minimim volume statements on the drives either...



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