PowerStore metro node: Multiple LDAP servers are not supported on Metro node
Summary: Customers may try to, or request assistance with configuring multiple LDAP servers on Metro node
Symptoms
Dell Impacted Hardware:
Metro Node-mn-114, mn-215, mn-216
Metro Node-Metro
Dell Impacted Software:
Metro node OS 7.x
Metro node OS 8.x
Metro node OS 9.x
On a Linux server, it is possible to modify the "ldap_uri =" parameter in the /etc/sssd/sssd.conf file to configure multiple LDAP servers. This is often done so that a "failover" LDAP server can be used.
Adding the name of an additional LDAP server in the "ldap_uri =" parameter will allow the server to try the first LDAP server, and if that server is unreachable, try the next LDAP server that is listed after the first one in the "ldap_uri =" parameter
This is not currently supported on Metro node as the authentication services on MN will fail to start if there is more than one LDAP server added to the "ldap_uri =" parameter
Cause
Metro node Engineering has tested this by adding an additional LDAP server to the "ldap_uri =" parameter in the /etc/sssd/sssd.conf file. When the additional server was added, the Metro node sssd service failed to start, thus rendering LDAP unusable.
Resolution
There are currently no plans to make code changes to allow for an additional LDAP server. It is possible that this will change in a future MN code release.