In a Huawei FusionInsight Hadoop cluster, management nodes host the core services required for cluster operation, management, and coordination. The directory /srv/BigData is the standard base installation path and is typically a dedicated partition. Management nodes run critical components such as the Operations Manager (OMS), ZooKeeper, and HDFS JournalNode (for NameNode High Availability). Therefore, the data directories for these services—/srv/BigData/dbdataom (OMS database), /srv/BigData/zookeeper (ZooKeeper data), and /srv/BigData/journalnode (JournalNode data)—are expected to exist on the management nodes.

E. /srv/BigData/hadoopdata5: This directory naming convention is used for HDFS DataNode storage. DataNodes are worker nodes that store the actual data blocks and are not deployed on management nodes.

1. Huawei FusionInsight HD 6.5.1 Installation Guide, Section: "Planning Disks and Directories". This official guide details the disk and directory planning for different node types. It specifies that management nodes host services like OMS, ZooKeeper, and JournalNode, requiring partitions for their respective data directories (/srv/BigData/dbdataom, /srv/BigData/zookeeper, /srv/BigData/journalnode). It explicitly assigns DataNode data directories (/srv/BigData/hadoopdata[N]) to data nodes.

2. Huawei FusionInsight HD Product Documentation, Section: "System Architecture" > "Logical Architecture". The documentation describes the roles of different nodes. Management nodes are defined as hosting management and control components (like OMS, DBService, ZooKeeper, NameNode, JournalNode), while data nodes host data storage and computing components (DataNode, NodeManager). This architectural separation confirms that DataNode directories would not be on management nodes.