5.3.4 Memory Installation Guidelines
●
Observe the following when configuring DDR4 DIMMs:
–
Install DIMMs only when corresponding processors are installed.
–
Do not install LRDIMMs and RDIMMs in the same server.
–
Install filler DIMMs in vacant slots.
●
Observe the following when configuring DDR4 DIMMs in specific operating
mode:
–
Memory sparing mode
▪
Comply with the general installation guidelines.
▪
Each memory channel must have a valid online spare configuration.
▪
The channels can have different online spare configurations.
▪
Each populated channel must have a spare rank.
–
Memory mirroring mode
▪
Comply with the general installation guidelines.
▪
Each processor supports two integrated memory controllers (IMCs).
At least two channels of each IMC are used for installing DIMMs
(channels 1 and 2, or channels 1, 2, and 3). The DIMMs installed
must be identical in size and organization.
▪
For a multi-processor configuration, each processor must have a
valid memory mirroring configuration.
–
Memory scrubbing mode
▪
Comply with the general installation guidelines.
5.3.5 Memory Installation Positions
A CH225 V5 supports a maximum of 24 DDR4 DIMMs. To maximize the
performance, balance the total memory capacity between the installed processors
and load the channels similarly whenever possible.
Huawei FusionServer Pro CH225 V5 Compute Node
Technical White Paper
5 Hardware Description
Issue 06 (2020-07-31)
Copyright © Huawei Technologies Co., Ltd.
19
