Isolation of operating system to iDRAC Pass-through Independent feature

When iDRAC Service Module (iSM) is unable to establish communication with iDRAC over the operating system (OS) to iDRAC Pass-through interface, iSM runs in the Limited Functionality mode and the core service remains functional. On disabling the OS to iDRAC Pass-through interface from iDRAC, iSM continues to run in the Limited Functionality mode. When iSM runs in the Limited Functionality mode, the iSM status in the iDRAC interface is displayed as Running (Limited functionality). If the OS to iDRAC Pass-through interface is enabled again, all feature states are updated according to the iSM configuration. During iDRAC reboot scenarios, iSM switches to the Limited Functionality mode temporarily and restores back after the communication is reestablished. The feature is compatible with all operating systems supported on iSM 4.2.0.0 and later version.