Performance difference between X357A-R6 vs X356A-R6 disks

[Maurice-FreeOnes]

Hello,

Can somebody explain to me the performance difference between X357A-R6 vs X356A-R6 disks?

thank you very much!

Regards, Maurice

[SpindleNinja]

hwu.netapp.com is your friend!  

Part Number	Type	Marketing Capacity	Physical	Right-Sized	Encrypted	RPM	Checksum	Interface Speed	EOA	EOS
X356A-R6	SSD	3840 GB	3576 GiB	3576 GiB	no		BCS	12 Gbps, 3 Gbps, 6 Gbps	09-Dec-2019	31-Jan-2025

Part Number	Type	Marketing Capacity	Physical	Right-Sized	Encrypted	RPM	Checksum	Interface Speed	EOA	EOS
X357A	SSD	3840 GB	3576 GiB	3576 GiB	no		BCS	12 Gbps, 6 Gbps

[paul_stejskal]

I believe the 356 is older and it supports the older 3Gb/s SAS shelves according to HWU. It may have the 3.5" enclosure too or an adapter for it I'm not sure. But the 356 is listed to support the 3Gb shelves but the 357 is not. Probably exact same SSD otherwise.

If you're ordering a new one, 357 would probably be what you need.

[SpindleNinja]

the 356 is also EOA

[Maurice-FreeOnes]

Hi everybody,

Yes I know about HWU. Sorry for not asking it right.

When I look on Ebay there is a big difference is pricing of these 2 models. The new one is about 2-3 times more expensive.

That's what made me think there must be differences in speed between the 2 models. Since the X357A is a new one I tried to find test reports, but couldn't find anything thru Google.

Regards, Maurice