Sun Java System Directory Server Enterprise Edition 6.2 Reference

System Indexes

System indexes are required for Directory Server to function properly and efficiently. System indexes cannot be deleted or modified. Table 6–1 lists the system indexes created automatically in every suffix.

Table 6–1 System Indexes in Every Suffix

Attribute 

Equality Index 

Presence Index 

Description 

aci

 

Allows the directory server to quickly obtain the access control information maintained in the directory 

ancestorid

 

Enhances directory performance during subtree searches 

entrydn

 

Speeds up entry retrieval based on DN searches 

id2entry

 

Contains the actual database of directory entries. All other database files can be recreated from this one 

nsUniqueId

 

Used to search for specific entries 

nscpEntryDN

 

Used internally in Directory Server for replication 

nsds5ReplConflict

Helps to find replication conflicts 

numsubordinates

 

Used by Directory Service Control Center to enhance display performance on the Directory tab 

objectClass

 

Accelerate subtree searches 

parentID

 

Enhances directory performance during one-level searches