Unisys Call Home is a software application that automatically detects system fault events and transmits an Electronic Service Request (ESR) packet that contains the failure details to the Unisys Support Center. The Call Home application is triggered by the specific events logged in the Event Log and also at any specific request sent by the user. The Call Home application is a communication link established between the Fabric Manager and the Unisys Support Center.
The Call Home feature sends the device failure messages to the Unisys Support Center in the form of XML formatted electronic packets (ESR requests). Following are some of the scenarios during which the Call Home notifications are sent.
A device fails to reset during shutdown or halt of the partition image.
A boot disk is either inaccessible, write protected, or full.
A restore disk is either inaccessible or write protected.
One or more virtual disks have degraded or gone offline.
One or more physical disks have failed.
RAID is broken due to one or more failed physical disks.
A platform generates a Non-Maskable Interrupt (NMI).