Green Indicator Yellow Indicator Description
Off Blinking yellow at
8 Hz
The data on the secondary NVMe drive is
being rebuilt.
Steady green/Off Steady yellow The NVMe SSD is faulty.
l If the VMD function is disabled, NVMe SSDs support only orderly hot swap.
Table 2-8 NVMe SSD indicators (VMD disabled)
Green Indicator
Yellow Indicator Description
Off Off The NVMe SSD cannot be detected.
Steady green Off The NVMe SSD is working properly.
Blinking green at 2
Hz
Off Data is being read from or written to the
NVMe SSD.
Off Blinking yellow at
2 Hz
The NVMe SSD is being located or hot-
swapped.
Off Blinking yellow at
0.5 Hz
The hot removal process is complete, and
the NVMe SSD is removable.
Steady green/Off Steady yellow The NVMe SSD is faulty.
2.4.4 RAID Controller Card
The RAID controller card supports RAID configuration, RAID level migration, and drive
roaming.
l Contact your local Huawei sales representative or use the Intelligent Computing
Compatibility Checker to determine the components to be used.
Table 2-9 RAID levels supported by the CH121 V5
RAID
Level
Reliability Read
Performan
ce
Write
Performan
ce
Minimum
Number of
Drives
Drive
Utilization
RAID 0 Low High High 2 100%
RAID 1 High Low Low 2 50%
2.5 Network
2.5.1 LOMs
The LOM is a network interface module (X722) integrated in the PCH. It can be connected to
an I/O module (switch module). The LOM provides two 10GE network ports for connecting
FusionServer Pro CH121 V5 Compute Node
User Guide
2 Hardware Description
Issue 06 (2019-08-10) Copyright © Huawei Technologies Co., Ltd. 20
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