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On Tue, 2010-04-06 at 22:05 -0400, D. Hugh Redelmeier wrote:
> | From: Rick Stevens <[email protected]>
> 
> | The problem is that the controller you've plugged into (the one on
> | the motherboard) is not designed for "hotswap" devices.  It's expecting
> | a hard-installed drive and thus doesn't have the eject support NOR does 
> | it have necessary power supply glitch protection since it's expecting
> | its drives to be on the same power supply the motherboard is using.
> | 
> | It is VERY dangerous to simply connect a motherboard connector to the
> | outside world unless it was actually intended for it.  In your case,
> | it is quite possible to blow your motherboard if there's an adequate
> | ground loop between your computer and the power supply feeding the
> | eSATA drive.  An actual eSATA (external SATA) port IS designed for
> | hotswap and has the requisite protection.  THOU HAST BEEN WARNED!
> 
I have used external SATA/eSATA boxes hot-plugged (via suitable passive
plugs/sockets/cables) into the standard motherboard SATA ports on
Shuttle boxes for over 4 years. Often hot-plugged several times a day.

I have never blown a mech disk, eSATAp memory stick, SSD or mother
board ... yet! ...

My latest arrangement (eSATAp) does indeed pick up the power 12V and 5V
directly from the computer power supply but that is a recent innovation.

Yes I accept there may be extra protection built into a specialised
external motherboard eSATA(p) port.

John

> Wow.
> 
> The drive is installed in a Vantec NexStar 3 NST-360su enclosure:
>   <http://www.vantecusa.com/en/product/view_detail/212>
> 
> This enclosure came with an eSATA bracket intended to be connected to
> an internal SATA socket.  See page 8 of the users guide (available
> from the web page):
> 
> 	An internal SATA port can be converted to an eSATA port with
> 	the included adapter.
> 
> Do you suspect that the manual is wrong?


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