The Client API allows applications to directly access the storage services provided by IBM Spectrum Protect, whereas the other options are not necessary for a custom Linux install. However, it's important to note that the specific components required for a custom install may vary depending on the individual needs and requirements of the installation.
According to IBM documentation1, the purpose of the SET REPLSERVER command is to set the name of a target replication server for a source replication server. The command has two parameters: SERVERNAME and REPLSERVER. The SERVERNAME parameter is the name of a source replication server that you want to replicate data from. The REPLSERVER parameter is the name of a target replication server that you want to replicate data to.
According to IBM documentation1, the purpose of the SET REPLSERVER command is to set the name of a target replication server for a source replication server. The command has two parameters: SERVERNAME and REPLSERVER. The SERVERNAME parameter is the name of a source replication server that you want to replicate data from. The REPLSERVER parameter is the name of a target replication server that you want to replicate data to.