Fujitsu PRIMERGY CX400 S1, Upgrade And Maintenance Manual

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100 Upgrade and Maintenance Manual
CX400 S1
Hard disk drives / solid state drives
7.1 Basic information
Hard disk drives
The server enclosure can be equipped with a maximum of 24 x 2.5-inch
HDD/SSDs or 12 x 3.5-inch HDD modules.
Each HDD module can accommodate an SAS/SATA hard disk drive or an SATA
2.5-inch SSD drive with a maximum height of 1 inch. The module is connected
to the SAS/SATA backplane wirelessly. This allows HDD/SSD modules to be
plugged in or pulled out easily.
Six SAS/SATA hard disk drives can be controlled by the onboard SAS/SATA
controller. To control further SAS/SATA hard disk drives, an additional RAID
controller must be installed.
Hybrid configurations of SAS HDDs, SATA HDDs and SSDs within the same
logical drive (RAID array) are not supported.
If the server enclosure has the corresponding RAID configuration, HDD
modules can also be replaced during operation.
7.1.1 General equipping rules
– Solid state drives (SSDs) are always equipped before installing hard disk
drives.
– Hard disk drives / solid state drives with different capacities are installed
from highest to lowest capacity.
– Hard disk drives with different rotation speeds are installed from highest to
lowest speed.
– When installing hard disk drives with different bus technologies (SAS or
SATA), first install SAS drives and then SATA drives.
– Please refer to sections "HDD/SSD install order in the 2.5-inch chassis" on
page 101 or "HDD install order in the 3.5-inch chassis" on page 110 for a
complete overview of the mounting sequence.
– Install dummy modules into unused HDD/SSD bays.