You can enable scalable storage either during installation or post-installation of Sentinel. When you enable scalable storage during installation, Sentinel configures CDH components with default values. Some of these configurations are permanent and cannot be changed. For example, the default number of partitions for Kafka topics is 9 and this value cannot be changed.
If you want to change the default values, you must enable scalable storage after you install Sentinel and then set the configurations for CDH components as desired.
For traditional installations, you can enable scalable storage either during Sentinel installation or after Sentinel installation. For appliance installations, you can enable scalable storage only after installation.
In upgrade installations, you can enable scalable storage only after you upgrade Sentinel.
Before you proceed with enabling scalable storage, keep the list of IP addresses or hostnames and port numbers of Kafka, HDFS NameNode, YARN NodeManager, ZooKeeper, and Elasticsearch nodes handy. You need this information when you enable scalable storage.
To enable scalable storage during Sentinel installation, see Sentinel Server Custom Installation.
To enable scalable storage after Sentinel installation or upgrade, see Enabling Scalable Storage Post-Installation
in the Sentinel Administration Guide.