The svcs -d command lists the service instances that a given service depends on.
This example shows the service instances that the system-repository service depends on:
$ svcs -d system-repository STATE STIME FMRI online Sep_09 svc:/milestone/network:default online Sep_09 svc:/system/filesystem/local:default online Sep_09 svc:/system/filesystem/autofs:default
The svcs -l command also lists the services that a given service depends on. In addition to the name and state of the dependency, the -l option output shows the type, or grouping, of the dependency and the value of the restart_on property of the dependency. In this example, two of the dependencies are required and one is optional. See Dependency Groupings for descriptions of how dependencies in these groupings affect the dependent service. See Dependency Groupings for descriptions of how different values of the restart_on property of the dependency affect the dependent service.
$ svcs -l system-repository fmri svc:/application/pkg/system-repository:default name IPS System Repository enabled false state disabled next_state none state_time Mon Sep 09 18:42:28 2013 restarter svc:/system/svc/restarter:default manifest /lib/svc/manifest/application/pkg/pkg-system-repository.xml dependency require_all/error svc:/milestone/network:default (online) dependency require_all/none svc:/system/filesystem/local:default (online) dependency optional_all/error svc:/system/filesystem/autofs:default (online)
You can also use the svcprop command to list these dependencies. This form shows the grouping and restart_on values of the dependency on separate lines, and does not show the state of the dependency.
$ svcprop -g dependency system-repository:default network/entities fmri svc:/milestone/network:default network/grouping astring require_all network/restart_on astring error network/type astring service filesystem-local/entities fmri svc:/system/filesystem/local:default filesystem-local/grouping astring require_all filesystem-local/restart_on astring none filesystem-local/type astring service autofs/entities fmri svc:/system/filesystem/autofs:default autofs/grouping astring optional_all autofs/restart_on astring error autofs/type astring service