On Thu, 18 Feb 2021 13:36:15 -0800
wes <[email protected]> dijo:
>On Thu, Feb 18, 2021 at 1:24 PM John Jason Jordan <[email protected]>
>wrote:
>
>>
>> It's definitely not the cable. I have three TB3 cables, and they have
>> been swapped, yet the problem remains.
>So the next logical step is to swap the other bits of hardware. Which
>is really difficult when you only have 1 of each. Normally in such a
>case we could reach out to the community to see if anyone has similar
>hardware we can borrow for troubleshooting, but I think you're the
>only one in the Portland metro area with one of those enclosures.
>> The four U.2 drives are plugged into two PCI cards (two drives per
>> card) which are then plugged into a four-slot enclosure. The
>> enclosure has two TB3 ports, but no on-off switch. When a powered
>> TB3 cable is plugged into either port the enclosure automatically
>> powers on, and it powers off when the cable is unplugged.
>Does the enclosure offer any options to supply power externally? Might
>be worth a try, just as an experiment.
It's a Magma Expressbox 3T-V3:
https://www.onestopsystems.com/product/expressbox-3t-v3
Magma was bought out by One Stop Systems.
In the pic on the above link it looks like there is a power button on
the front, but it's really just a light.
Inside there are four PCI slots, but one is occupied by the TB3 card,
and one of the others is blocked by a big heat sink so you can't hang a
long card off the end of it. But that's OK because I just need slots
for two full length cards. There are also two fans, one in front
blowing in and another in back blowing out.
It has an external power supply that plugs in with a connector that
looks like the end of a machine power cord, like the end of the power
cord for a desktop PC, except that the end that plugs into the wall has
a brick on it. I don't know how many volts the enclosure takes, but it's
not straight 120v, because I assume the brick is stepping it down. So
there is another way o turn it off - just pull the power cord out of
its socket. But unlike the TB3 cord, plugging the power cord back in
doesn't turn it on.
Even if I had spares to swap for the other bits, it would be difficult
to swap things out because it runs fine for a couple weeks before it
fails.
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