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Hard disk drive (HDD) / solid state disk (SSD)
7.2
Basic information
The HDD or SSD and the installation frame together make up the HDD module
or SSD module.
The server is shipped with an 2.5-inch HDD/SSD subsystem:
– Up to 16 2.5-inch SAS/SATA HDD/SSD modules can be installed.
– Up to 12 2.5-inch PCIe SSD modules can be installed.
– Up to 12 2.5-inch PCIe SSD modules and four SAS/SATA HDDs can be
installed.
– Up to four 2.5-inch PCIe SSD modules and 12 SAS/SATA HDDs can be
installed.
– Eight 2.5-inch PCIe SSD modules or eight SAS/SATA HDD/SSD modules as
combo drive can be installed.
The HDD/SSD/PCIe SSD modules are connected to the HDD backplane
wirelessly. This allows HDD/SSD modules to be connected or pulled out easily.
If the HDD/SSD/PCIe SSD modules are controlled by a RAID controller,
defective HDD/SSD/PCIe SSD modules can also be replaced during operation.
In the configuration with up to 16 HDD/SSD modules, you need an SAS
controller for SAS functionality.
To use full SAS speed the HDD backplane must be connected to the
appropriate SAS3.0 capable RAID controller.
In the configuration with up to 16 HDD/SSD modules, 2.5-inch SATA
drives can be connected to SAS controller of the system board.
The configuration with up to 16 HDD/SSD modules works with a 2 or 4
CPU (each CPU with <= 165 W) configuration or Liquid Cooling
configuration.
The configuration with up to 12 PCIe SSD modules and 4 HDD/SSD
modules works only with 4 CPU (each CPU with <=165 W)
configurationor Liquid Cooling configuration. Bays 0 to 3 can only be
used for HDD/SSD modules.
In a 4 CPU configuration the bays 0 to 3 can only be used for SAS/SATA
HDDs/SSDs.
138
Upgrade and Maintenance Manual
RX4770 M5
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