120 Upgrade and Maintenance Manual TX120 S3
Hard disk drives / solid state drives
● For further safety information, please refer to chapter "Important
information" on page 37.
In this chapter
– 2.5-inch HDD / SSD subsystem
● "Installing 2.5-inch HDD / SSD modules" on page 121
● "Removing 2.5-inch HDD / SSD modules" on page 125
● "Replacing a 2.5-inch HDD / SSD module" on page 129
● "Replacing SAS / SATA backplane" on page 143
– 3.5-inch HDD subsystem
● "Installing 3.5-inch HDD modules" on page 132
● "Removing 3.5-inch HDD modules" on page 137
● "Replacing a 3.5-inch HDD module" on page 140
7.1 Basic procedure
– 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 7.2.1 and 7.3.1 for a complete overview of the
mounting sequence.
– Install dummy modules into unused HDD / SSD bays.
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