Wiwynn ST300 1U 24 bay U.2 NVMe JBOF

[Patrick Kennedy]

At Computex 2018 we got to try the Wiwynn ST300 1U 24 bay U.2 NVMe JBOF. This unit combines storage disaggregation principles from OCP Lightning servers and applies them to the 19" rackmount market

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[_alex]

Wow ...
How exactly is such a thing connected to the head(s) in terms of cabling and HBAs ?

 

[Patrick]

You can see the 8x PCIe 3.0 4-lane connectors on the rear of the chassis. External PCIe cabling.

Apologies for the tardy response. I did not sleep on the plane and the satellite WAN for Wi-Fi was not working on the United 777 en route from Taipei so I am both poorly rested and behind on work. Not a good Friday combo.

 

[_alex]

Hi Patrick,
no problem, hopw you find some sleep and get more important things done.
I see the connectors and wonder what to put on the other side.
They look like sff8644, so maybe two 9400-8e or a single 9405W-16e per Storage Head ?

 

[cesmith9999]

They are probably using the physical sas connectors , but using PCIe pass through cards.

Chris

 

[Patrick]

@_alex they usually do not need a controller like the LSI cards. Instead, they typically use a PCIe retimer card to go from a slot to external cabling. Dell, Supermicro and others do this as well.