Device Name Parameters Device Name Parameters The parameters listed in the following specify the device files under /dev that represent the persistent volumes created by ICM for use by InterSystems IRIS. For information about these persistent volumes and a table of provider and OS-specific default values for these parameters, see Storage Volumes Mounted by ICM. For PreExisting deployments, see Storage Volumes in the “Deploying on a Preexisting Cluster” appendix. Parameter Persistent Volume For DataDeviceName Databases WIJDeviceName WIJ directory Journal1DeviceName Primary journal directory Journal2DeviceName Alternate journal directory