HPE ProLiant DL325 Gen11 User Manual page 29

SAS or SATA drives are supported.
To manage the hot-plug SAS drive, install the HPE MR type-o Gen11 storage controller (OROC).
SFF drive bay numbering SFF drive bay numbering
8 + 2 SFF drive configuration 8 + 2 SFF drive configuration
The following drive backplane options are supported in all 8 + 2 SFF drive configurations:
2 SFF side-by-side drive backplanes:
2 SFF 16G x4 U.2 NVMe / SAS UBM4 BC
2 SFF 24G x4 U.3 NVMe / SAS UBM3 BC
2 SFF 24G x4 U.3 NVMe / SAS UBM6 BC
8 SFF drive backplanes:
8 SFF 16G x4 U.2 NVMe / SAS UBM4 BC
8 SFF 24G x1 U.3 NVMe / SAS UBM3 BC
8 SFF 24G x4 U.3 NVMe / SAS UBM3 BC
8 SFF 24G x1 U.3 NVMe / SAS UBM6 BC
8 SFF 24G x4 U.3 NVMe / SAS UBM6 BC
For more information on the drive backplane description, see Drive backplane naming.
In the 8 + 2 SFF drive configuration:
Drives are assigned to box 1 and optional box 2.
SAS, SATA, or U.3 NVMe drives are supported.
To manage the hot-plug SAS drive, install one of the following storage controllers:
HPE SR / MR type-p Gen11 storage controller
HPE MR type-o Gen11 storage controller (OROC)
When installing NVMe drives, install either all U.2 or all U.3 drives. Mixed NVMe drive type installation in the same box is not supported.
4 SFF NVMe drive configuration 4 SFF NVMe drive configuration
The following drive backplane options are supported in the 4 SFF NVMe drive configurations:
2 SFF 24G x4 U.3 NVMe / SAS UBM6 BC
2 SFF 32G x4 U.3 NVMe / SAS UBM3 BC
For more information on the drive backplane description, see Drive backplane naming.
HPE ProLiant DL325 Gen11 Server User Guide 29