Abstract: A specified data type and pre-storage operation are receive. In response, an association between the two is created in storage metadata. After the association is created, data to be stored is received where the data has a data type. In response to receiving the data, the storage metadata, including the association, is accessed and it is determined if the data type of the data is the same as the specified one. If so, the specified pre-storage operation is automatically performed on the data in order to obtain an output and the output is stored.

Abstract: A specified data type and pre-storage operation are receive. In response, an association between the two is created in storage metadata. After the association is created, data to be stored is received where the data has a data type. In response to receiving the data, the storage metadata, including the association, is accessed and it is determined if the data type of the data is the same as the specified one. If so, the specified pre-storage operation is automatically performed on the data in order to obtain an output and the output is stored.

Abstract: An association between a set of data and a pre-storage operation is obtained where the set of data is defined in a manner that permits the set of data to include more than one unit of data. In response to receiving data which meets the definition of the set of data, the pre-storage operation is performed on the received data and the output of the pre-storage operation is stored.

Abstract: A catalog of one or more metadata objects associated with metadata is stored in a persistent manner. The data objects are stored at least in part on a user node included in a data management system. A request associated with accessing a metadata object included in the persistent catalog is received. In response to receiving the request, access to the requested metadata object is provided.