Starting InterSystems IRIS
For most installations, InterSystems IRIS starts automatically when the install completes. If you need to start InterSystems IRIS, first log in to your operating system, then start InterSystems IRIS using the iris command:
Where instname is the instance name that you chose during the installation. On Red Hat Linux, the start command is:
Use the iris command to start and stop InterSystems IRIS. It is described in greater detail in the Controlling InterSystems IRIS Instances section of the System Administration Guide.
If the permissions on all elements of the path to the mgr subdirectory do not provide read access to the irisusr group (at a minimum), the instance fails to fully start and the following message is recorded in messages.log: Element of path manager_subdirectory could not be read (errno 2).
Once InterSystems IRIS is started, initiate an InterSystems IRIS session using the iris terminal command, as described in Connecting to an InterSystems IRIS Instance in the “Using Multiple Instances of InterSystems IRIS” chapter of the System Administration Guide:
iris terminal <instname> [parameters]
Where instname is the instance name that you chose during the installation.
For more information, see the “Using InterSystems IRIS on UNIX®, Linux, and macOS” chapter of the System Administration Guide.