Table of Contents
Internal system components
DIMMs overview
DD6800 memory DIMM configuration
Tier
Total
Memory
DD6800 DLH
192 GB
DD6800 DLH
192 GB
Extended
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 8 CPU and memory locations
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.
Table 27 DD6800 memory DIMM configuration
Tier
DD6800 DLH
DD6800 DLH Extended
Retention/DD Cloud Tier
HA is supported with all available memory configurations.
To ensure maximum memory performance, there are memory DIMM population rules
for best memory loading and interleaving.
page 34 specify the DIMM location rules for various memory configurations:
Table 28 Memory locations - CPU 0
Channel A
0
1
2
16 GB
8 GB
16 GB
16 GB
8 GB
16 GB
Data Domain DD6300, DD6800, and DD9300 Hardware Overview
Total Memory
192 GB
192 GB
Table 28
Channel B
Channel D
3
4
8 GB
8 GB
8 GB
8 GB
Internal system components
Memory DIMM Configuration
8 x 16 GB +8 x 8 GB
8 x 16 GB +8 x 8 GB
on page 33 and
Table 29
Channel C
5
6
16 GB
8 GB
16 GB
8 GB
on
7
16 GB
16 GB
33
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