Hello,
I hope all is well.
AS per shared information, you have to purchase the SAS license key for using SAS hard disk with the B320i controller.
Please follow the below documents for more clarification.
HP ProLiant DL360e Gen8 Server Maintenance and Service Guide ( Follow the below page no 68)
HP Dynamic Smart Array RAID Controller User Guide ( follow the page no 5)
https://support.hpe.com/hpesc/public/docDisplay?docId=c03326739
Dynamic Smart Array controllers (B120i and B320i) Quick Specs follow the page no 2 for more clarification
http://nbc.intersmartweb.com.br/PDF/HP_BC393A.pdf
HP ProLiant DL380e Generation 8 (Gen8)
Ports
Ports B120i Up to 6 SATA drives
NOTE: NO SAS supported.
B320i Up to 8 SATA drives;
NOTE: SAS supported with an optional SAS License key.
HP ProLiant DL380e Generation 8 (Gen8)
https://h20195.www2.hpe.com/v2/getdocument.aspx?docname=c04128166
NOTE: This riser kit comes with the B320i Smart Array controller which provides support for up to 8 SAS or SATA drives and requires a SAS license key to support SAS drives.
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Regards,