Correct, if you have SED drives, then you're good.  The letters SED will usually be in the product number.

`isi_for_array -s "isi_hw_status | grep -i product"`

To check the status of the keys, drives, and so forth, reference the CLI guide.  See page 387 here:

https://support.emc.com/docu84280_OneFS-8.1.0-CLI-Administration-Guide.pdf?language=en_US

~Chris