After you change and save DefaultDS settings, Admin Console will create a hsqldb-ds.xml-xxxx style sub-folder in the data/attachments/ folder of your instance(default or all) and create some files in this folder, the changed DefaultDS settings is saved in these files.
So if a resource is modified via the Admin Console, the administration of the resource must continue to be done via the Admin Console. The resource modifications are persistent but will not be reflected in the resources original configuration file. This means that changes between manual edits to configuration files and changes performed via the Console are not interchangeable.
Hello jboss q,
Thanks for your detailed answer. I could find some references of this in the file : Admin Console Guide
However, did not find any document which stated the place where the new files are stored. Do you have any reference doc for studying such details in jboss administration/setup .