1. A method of operation of a storage server, the method comprising: assigning, by an administration thread, a data storage unit of a plurality of data storage units to a respective independent worker thread of a plurality of independent worker threads; and initializing, by the respective independent worker thread, the data storage unit assigned to the respective independent worker thread, the plurality of independent worker threads initializing the plurality of data storage units in parallel, wherein initializing further comprises assigning the plurality of independent worker threads initialization tasks to register the plurality of data storage units for data access and assigning one of the plurality of independent worker threads to read a table of contents of a first volume, wherein assigning one of the plurality of independent worker threads to read the table of contents of the first volume comprises reading the table of contents of the first volume to obtain information for accessing the plurality of data storage units of the first volume.