Hello jtejada.ralco,

Here is the link to the Unity drive support matrix. If you look up the size drive that you are wanting to install, the guide will list the EMC part#, minimum OE version and supported systems.

https://dell.to/3woPP1l

@DELL-Sam L​ thanks for answer.

I also have this document but what I don't understand is on Table 3 why D3F-2SFXL2-7680 model is ok for UNITY300/400/500/600 platforms but other flash drives from same table like D3F-2SFXL2-3840 or D3F-2SFXL2-1920 with less capacity not. Is that document correct?

Hello jtejada.ralco,

Table 3 is for unity system that are an all flash array. Now you stated that you have a unity 400. If your system is not an all flash system (Unity 400F) then you will not be able to use some of drives from table 3. The document is correct for the drives and EMC part# that are listed.  

@DELL-Sam L Please check the document, this capture is from table 3. You can see for 7680GB and 15360GB drives the platform list is including hybrid models and also Unity400. This is what is strugling me so I need to clarify if finally these drives are compatible or not.  

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Hello jtejada.ralco,

Both the 7680GB and 15360GB drives a will work in both unity x00 and x00F systems. The smaller drives

1920GB & 3840GB are only for Unity x00F systems.