Identifying a failed DIMM from the ACM
If a DIMM is suspected of failing, you can check the IDPA web UI or use the FRU command line
verification from the ACM.
About this task
The DD4400 system has 24 memory slots distributed across two memory channels. The following
figure shows the physical layout of the memory slots. The bottom of the image represents the
front of the cabinet.
Figure 24 DIMM slot configuration
The following tables lists the memory channel mapping, and the DIMM configuration for each
capacity point.
Table 6
DIMM memory channel mapping
Processor Channel 0 Channel 1 Channel 2 Channel 3 Channel 4 Channel 5
1 A1 + A7 A2 + A8 A3 + A9 A4 + A10 A5 + A11 A6 + A12
2 B1 + B7 B2 + B8 B3 + B9 B4 + B10 B5 + B11 B6 + B12
Procedure
1. Access the IDPA web UI and check for alerts in the Health screen. Click an alert for more
details.
2. Log in to the ACM command line by using SSH.
Use root for the user, and use the common password for the appliance.
3. At the command line, type the following:
# showfru dimm
The screen displays that the system is collecting data. When the data collection is
completed, the screen displays status information for the DIMMs.
acme-dp4400-ACM:~ # showfru dimm
Collecting Data............
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Remove and replace assemblies
Dell EMC Integrated Data Protection Appliance DP4400 Service Procedures 39
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