You can perform disk-layout operations, such as adding or dropping chunks and dbspaces, only from the primary database server. The operation is replicated on the secondary database server. This arrangement ensures that the disk layout on both database servers in the replication pair remains consistent.
The directory pathname or the actual file for chunks must exist before you create them. Make sure the pathnames (and offsets, if applicable) exist on the secondary database server before you create a chunk on the primary database server, or else the database server turns off data replication.
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