[domain@localhost:9999 subsystem=datasources] ./data-source=java\:jboss\/datasources\/ExampleDS:read-operation-description(name=add)
{
"outcome" => "success",
"result" => {
"operation-name" => "add",
"description" => "Adds a new data-source",
"request-properties" => {
....
"pool-name" =>

{ "description" => "Specifies the pool name for the datasource used for management", "type" => STRING, "required" => false }

,

So the pool-name is optional, but when I deploy a data source without pool name, deployment fails:

[Server:server-one] 17:26:49,124 ERROR [stderr] (pool-1-thread-42) org.jboss.jca.common.api.validator.ValidateException: IJ010068: Missing required attribute pool-name in org.jboss.jca.common.metadata.ds.DataSourceImpl