hot plugging eSATA

[D. Hugh Redelmeier]

| From: Lennart Sorensen <lsorense-1wCw9BSqJbv44Nm34jS7GywD8/FfD2ys at public.gmane.org>
| Date: Mon, 5 Apr 2010 12:35:16 -0400

| On Sat, Apr 03, 2010 at 12:14:33PM -0400, D. Hugh Redelmeier wrote:

| > - all SATA controllers support hot plug
| 
| No they don't.

This page might be useful:

 <https://ata.wiki.kernel.org/index.php/SATA_hardware_features>

I'm not clear on what is the correct protocol for unplugging.
 <http://www.phoronix.com/forums/showthread.php?t=21985>
has a variety of suggestions.  hdparm -Y is amongst them (surely after an 
unmount).

While we're on the topic of external disk drives, I'll throw in another 
link:
 <http://sourceforge.net/apps/trac/smartmontools/wiki/Supported_USB-Devices>.
This lists USB devices with smartmontools support.  Many others don't work 
with smartmontools
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