15
Fault/UID LED
status
Present/Active LED
status
Description
selected by the RAID controller.
Off
Flashing (4.0 Hz)
An M.2 SSD module is performing a RAID migration
or rebuilding, or the system is reading or writing data
to the drive.
Off
Steady on
An M.2 SSD module drive is present but no data is
being read or written to the drive.
Off
Off
An M.2 SSD module drive is not securely installed.
Drive backplane
This section introduces the drive backplanes supported by the server, including components of the
backplane, the type and number of drives supported by the backplane.
•
Drive backplanes are classified by the type of drives supported, including the SAS/SATA drive
backplane, UniBay drive backplane, and drive backplane (
X
SAS/SATA +
Y
UniBay).
SAS/SATA drive backplane: All drive slots support SAS/SATA drives only.
UniBay drive backplane: All drive slots support both SAS/SATA drives and NVMe drives.
Drive backplane (
X
SAS/SATA+
Y
UniBay): All drive slots support SAS/SATA drives and
some drive slots support NVMe drives.
−
X
: Number of slots that support SAS/SATA drives only.
−
Y
: Number of slots that support both SAS/SATA drives and NVMe drives.
NOTE:
•
The UniBay drive backplane and drive backplane (
X
SAS/SATA+
Y
UniBay) can only
support both drive types if both the SAS/SATA data cable and NVMe data cable are
connected.
•
The actual number of SAS/SATA drives and NVMe drives supported by the UniBay
drive backplane and drive backplane (
X
SAS/SATA+
Y
UniBay) is dependent on the
cabling scheme.
3SFF drive backplane (1SAS/SATA+2UniBay)
The 3SFF drive backplane is installed on the front of the chassis and supports up to three 2.5-inch
drives, including one SAS/SATA drive and two SAS/SATA/NVMe drives. Drive slot 2 can be replaced
with a SATA M.2 adapter module. For the drive slot numbering, see
