Name services transition: supported and unsupported configurations, and required manual steps

You must be aware of the name services configurations that are transitioned by the 7-Mode Transition Tool. Some name services configurations are not transitioned to ONTAP because either these are not supported in ONTAP or these must be manually transitioned.

You should verify all the precheck error and warning messages to evaluate the impact of such configurations on transition.

Configurations that are transitioned

At a high level, the following name services configurations are transitioned by the 7-Mode Transition Tool:

DNS configuration (/etc/resolv.conf)
LDAP configuration
NIS configuration
Name service switch configuration (/etc/nsswitch.conf and /etc/resolv.conf)
Hosts configuration (/etc/hosts)
UNIX users and groups (/etc/passwd and /etc/group)
Netgroups configuration (/etc/netgroup)

See the precheck results for details about these name services configurations.

Unsupported configurations in ONTAP

NIS slave
NIS broadcast
NIS groups caching
Dynamic DNS
DNS cache
Shadow database
Host database sources other than file or DNS
ONTAP supports only file and DNS for host lookup; other database sources are not supported. Host lookup order in the /etc/nsswitch.conf is ignored during transition.

Configurations that must be manually configured

You must manually configure the following LDAP options on the SVMs:

ldap.usermap.attribute.unixaccount
ldap.password
ldap.usermap.base
ldap.ssl.enable