# OpenAM Administration Guide
18.1. OpenAM Server Settings

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### 18.1.2. LDAP Settings

Tune both your LDAP data stores and also your LDAP authentication modules.

To change LDAP data store settings, browse to Access Control > `Realm Name` > Data Stores > `Data Store Name` in the OpenAM console. Each data store has its own connection pool and therefore each data store needs its own tuning.

Table 18.1. LDAP Data Store Settings

Property | Default Value | Suggestions
--- | --- | ---
LDAP Connection Pool Minimum Size | 1 | The minimum LDAP connection pool size; a good tuning value for this property is 10. (`sun-idrepo-ldapv3-config-connection_pool_min_size`)
LDAP Connection Pool Maximum Size | 10 | The maximum LDAP connection pool size; a high tuning value for this property is 65, though you might well be able to reduce this for your deployment. Ensure your LDAP server can cope with the maximum number of clients across all the OpenAM servers. (`sun-idrepo-ldapv3-config-connection_pool_max_size`)

To change connection pool settings for the LDAP authentication module, browse to Configuration > Authentication > Core in the OpenAM console.

Table 18.2. LDAP Authentication Module Setting

Property | Default Value | Suggestions
--- | --- | ---
Default LDAP Connection Pool Size | 1:10 | The minimum and maximum LDAP connection pool used by the LDAP authentication module. This should be tuned to 10:65 for production. (`iplanet-am-auth-ldap-connection-pool-default-size`)