Using Indexes

A table “follows” its clustered index. If you create a table on one segment, then create its clustered index on another segment, the table migrates to the segment where the index is created.

You can make inserts, updates, and selects faster by creating a table on one segment and its nonclustered indexes on another segment, if the segments are on separate physical devices. See Using Clustered or Nonclustered Indexes in Transact-SQL Users Guide.