Hi,
613921-001 is the right spare part number however we need to ensure it matches with the HP P/N used for SAS supported disk meant for EVA which is 619286-002.
One HP P/N (693569-002) is meant for disks in use for Servers and another HP P/N (619286-002) is used for SAS Disks supported only for EVA.
If the HP P/N number is 693569-002 then you will get the error "drive unsupported" when trying to group it.
Check the white stciker on the hard drive for the correct HP P/N number and contact the logistic from where you received the part.