Dual-Ported NVME U.2 2.5" Disks

[efschu3]

I want to expand our SuperMicro SuperStorage 2029P-DN2R24L with more disks. This are my findings:

Samsung SSD PM1725a/PM1725b
Samsung SSD PM1733
WesternDigital Ultrastar DC SN840
Intel SSD DC D3600/DC3700
Intel SSD DC D4500/D4502/D4505/D4600
Toshiba KIOXIA CM5-R
Toshiba KIOXIA CM6-R
Toshiba KIOXIA CM7
Micron 7300
Micron 7400
Micron 7450
Micron 9400

Are there more options?

 

[ano]

D4800X 1.5TB

 

[efschu3]

Ya i've seen the optanes and they would be nice, but its more about capacity with >3TB/disk.

 

[ano]

yes please! 15.36TB or 30.72TB optane with dual port.. on gen5 !

 

[efschu3]

Well my backplane is only pcie3

 

[NPS]

Micron 7400
Micron 7450
Micron 9400

 

[efschu3]

Micron 7400
Micron 7450
Micron 9400

Cant find them in U.2, only listing as U.3 disks

 

[NPS]

Cant find them in U.2, only listing as U.3 disks

Does not matter. You can always put U.3 disks in U.2 backplanes.

 

[NPS]

Kioxia CM6 are U.3 aswell.

 

[efschu3]

Does not matter. You can always put U.3 disks in U.2 backplanes.

Ah, missed that. Tnx.

 

[ericloewe]

Does not matter. You can always put U.3 disks in U.2 backplanes.

A guy from HPE's engineering department posted a while back that some unspecified vendors were cheating and shipping U.3 disks that were not backward compatible with U.2... Double-check the datasheets before buying.

 

[efschu3]

A guy from HPE's engineering department posted a while back that some unspecified vendors were cheating and shipping U.3 disks that were not backward compatible with U.2... Double-check the datasheets before buying.

And he concealed which one they were?

 

[ipreferpie]

Intel D4502 7.68TB

 

[ericloewe]

And he concealed which one they were?

Concealed is such a strong word... "Practiced typical corporate discretion in regards to matters most don't even dare to openly discuss" is how I'd describe it. In any case, I checked the Micron 7450 datasheet as an example and it clearly states U.3, compatible with U.2 bays. If others don't do the same, beware!