On Thu, May 6, 2010 at 2:44 PM, john CARMONNE <[email protected]> wrote:
> On May 6, 2010, at 11:41 AM, Len Gerstel wrote:
>> On May 6, 2010, at 1:46 PM, john CARMONNE wrote:
>>> I'm using an eSATA cable and I did reboot both machines.
>>
>> Is it known good?
>
> I just opened the pack for the first time. I've had it for about a year. Are
> there different ones?

My personal experience with eSATA has been mixed. When it works it's
great. When it doesn't, I really am never all that sure what's wrong.
Rather than troubleshooting it, I'm usually more just fiddling around
to try to get it to work.

I've always assumed that the problem is most likely in one of three places:

(1) The SATA controller which in my case is usually the chipset on my
(PC) motherboard. This is usually the last thing I worry about mostly
because if it is bad, then I assume I would have problems in all drive
situations, not just eSATA. This can be tested just by attaching
another drive or even by removing the drive you're having a problem
with from the eSATA enclosure and connecting it using an internal SATA
data & power connectors.

(2) The controller/bridge chips in the external enclosure. Again, I
hope it's not this because it would be a beast to track down and
verify.  The only way that occurs to me to approach it is by process
of long & tedious elimination.

FWIW, I do sometimes try power cycling the enclosure on the off chance
there was a race condition when things were supposed to initialize ...
something you'd hope would never happen at this point in computing
hardware history ... but who knows?

(3) The cable or the cable connection. Since the cables I have are
usually all included for "free" with some other accessory I bought, I
assume they are made the cheapest way possible and thus are for me the
most suspect. However, I think as often as not it's just some sort of
bad connection. Removing and replugging the cable or even just
"jiggling" it can sometimes be enough to get a proper connection.

As an example, I just powered up an external enclosure which is eSATA
attached. The drive was not recognized. After tinkering with some
other things I eventually pulled the eSATA cable from the enclosure
and replugged it. This caused the drive to be recognized. Go figure?

If fiddling with the cable doesn't help and you have access to another
eSATA cable, I would at least try it. Possibly you might be able to
coax the manufacturer to send you a replacement cable? Miracles
sometimes happen, no?

IMO, the more I fiddle with it, the more eSATA ... and SATA connectors
in general ... feels like one of those nifty ideas that was released
without thinking it through and/or refining the prototypes enough.
Probably an inevitable problem when the companies that sell the tech
are also responsible for the specs. They're more concerned with
getting something out the door than with making it more bullet proof.
:-(

-irrational john

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