Table and index partitioning
As you’ve already seen when looking at the metadata for table and index storage, partitioning is an integral feature of SQL Server space organization. Figure 6-3 in Chapter 6 illustrated the relationship between tables and indexes, partitions, and allocation units. Tables and indexes that are built without any reference to partitions are considered to be stored on a single partition. One of the more useful metadata objects for retrieving information about data storage is the sys.dm_db_partition_stats dynamic management view, which combines information found in sys.partitions, sys.allocation_units and sys.indexes.
A partitioned object is split internally into separate physical units that can be stored in different locations. ...
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