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 |
X |
Allows the directory server to quickly obtain the access control information maintained in the directory |
|
ancestorid |
X |
Enhances directory performance during subtree searches |
|
entrydn |
X |
Speeds up entry retrieval based on DN searches |
|
id2entry |
X |
Contains the actual database of directory entries. All other database files can be recreated from this one |
|
nsUniqueId |
X |
Used to search for specific entries |
|
nscpEntryDN |
X |
Used internally in Directory Server for replication |
|
nsds5ReplConflict |
X |
X |
Helps to find replication conflicts |
numsubordinates |
X |
Used by Directory Service Control Center to enhance display performance on the Directory tab |
|
objectClass |
X |
Accelerate subtree searches |
|
parentID |
X |
Enhances directory performance during one-level searches |