Internal system components
The following figure shows the layout of the CPUs and DIMMs inside the chassis. The
front of the system is at the top of the figure.
Figure 7 CPU and memory locations
DIMMs overview
Dual in-line memory modules (DIMM) come in various sizes, which must be configured
in a certain way. This topic can help you select the correct configuration when
servicing DIMMs.
The storage processor contains two Intel processors each with an integrated memory
controller that supports four channels of memory. The storage processor allows two
DIMM slots per channel, so the storage processor supports a total of 16 DIMM slots.
DD6300 memory DIMM configuration
Table 21
DD6300 memory DIMM configuration
Tier Total Memory Memory DIMM Configuration
DD6300 AIO Expanded 96 GB 12 x 8 GB
DD6300 AIO 48 GB 6 x 8 GB
To ensure maximum memory performance, there are memory DIMM population rules
for best memory loading and interleaving. Table 22 on page 30 and Table 23 on
page 31 specify the DIMM location rules for various memory configurations:
Table 22
Memory locations - CPU 0
Channel A Channel B Channel D Channel C
Tier Total
Memory
0 1 2 3 4 5 6 7
DD6300 AIO
Expanded
96 GB 8 GB N/A 8 GB N/A 8 GB 8 GB 8 GB 8 GB
DD6300 AIO 48 GB N/A N/A 8 GB N/A N/A 8 GB N/A 8 GB
Data Domain DD6300, DD6800, and DD9300 Hardware Overview
30 Data Domain DD6300, DD6800, and DD9300 Systems 6.1 Hardware Overview and Installation Guide
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