Online Documentation for SQL Backup for SQL Server
This tab provides a number of advanced options for index reorganizing.
Define which pages should be reorganized: ones with the default or specified amount of free space per page.
Enable this option to leave the space open on each page in the intermediate levels of index.
Sort results in tempdb
This option indicates that intermediate sort results used to rebuild indices will be stored in the tempdb database.
Ignore duplicate keys
If the option is enabled then duplicate keys will be ignored.
Keep index online while reindexing
This option determines whether concurrent user access to the underlying table or clustered index data and any associated non-clustered indexes is allowed while reindexing.