Installation guide

18 Operating Manual RX300 S7
Functional overview
● 16*2.5-inch SAS/SATA hard disk drives:
up to sixteen (4x4) HDD modules, each with a 2.5-inch SAS/SATA hard disk
drive with a maximum height of 15 mm.
The module is connected to the SAS/SATA backplane without cables. This
allows HDD modules to be simply plugged in or pulled out (for further details see
the "PRIMERGY RX300 S7 Server Upgrade and Maintenance Manual").
The hard disk subsystem is designed for SAS/SATA, each with one channel for
each hard disk drive.
If the server has a RAID configuration, the HDD modules can be exchanged
during operation (hot-swap).
Onboard SAS/SATA controller
A SAS/SATA controller is integrated on the system board; up to four SAS or
SATA hard disk drives can be connected to the controller. The LSI Embedded
MegaRAID software (Software RAID) supports RAID levels 0, 1 and 10. The
SAS functionallity needs to be enabled separately by using a ROM1 SCU Key.
For more information on configuring the controller, see section "Configuring the
onboard SAS/SATA controller" on page 74.
SAS/SATA RAID controller
The server is available with the following SAS/SATA RAID controllers for
operating the internal SAS/SATA hard disk drives:
– Modular RAID 0/1 controller with "MegaRAID functionality"
(SAS MegaRAID) for SAS1.0 and SAS2.0
RAID levels 0, 1,10 and 1E are supported for internal hard disk drive
configurations.
– Modular RAID 5/6 controller with "MegaRAID functionality"
(SAS MegaRAID) for SAS1.0 and SAS2.0
RAID levels 0, 1, 10, 1E, 5, 50, 6 and 60 are supported for internal hard disk
drive configurations. As an option, a battery backup unit (BBU) or a flash
backup unit (FBU) can save the memory content even if the power fails.
Cache memory size of 512 Mbyte or 1 Gbyte is available.
I For more information on configuring the controller, see section
"Configuring the SAS/SATA RAID controller" on page 75.