Supermicro AOC-SASLP-MV8 not seeing the drives except 1

[dwoods99]

UPDATE:

 

So I got an Supermicro AOC-USAS2-L8i which handles "Automatically negotiates PCI-E (1.x and 2.x) link widths", I have it up and running now.

 

Initially I was concerned with the "fit" of the slot since it seems awkward and it attaches weird to the case -- not the best fit. With 2 x 8087 forward breakout cables, it was recognized on bootup.

I am now doing a rebuild.

 

Can anyone explain the UIO card design that this card apparently is?

 

[PeterB]

Yes, my experience is that the USAS2-L8i works very well.

 

UIO ... do not try to attach the rear faceplate in a standard case, you will put a lot of mechanical strain on the card.  UIO is a Supermicro proprietary design which is, basically, a PCIe card which is mirror image.  In other words, the components are on the opposite side of the pcb, compared with a standard PCIe card.  However, in a tower configuration it places the heat-generating components on the upper surface of the card, which makes a lot of sense to me.

[dwoods99]

Thanks for explanation.

Yes it was difficult to attach properly and make sure the pins were far enough into the board.

It has to be attached in a tower server since it would be sitting sideways and more likely to disconnect and fall out.

 

Good news for all this, I'm geting 50+ MB/s min up to 95 MB/s speeds for parity checking.

And that means less than 10 hours compared to 40-60 hours I got with the PCI-X card in a PCIe slot.

[PeterB]

It has to be attached in a tower server since it would be sitting sideways and more likely to disconnect and fall out.

 

Mine's been in a tower case, without the backplate, for about a year - it's never fallen out yet!