Compaq ProLiant 8500 Compaq ProLiant NMI Crash Dump Feature - Page 4

Compaq ProLiant Server NMI Crash Dump Feature 4 Compaq Automatic Server Recovery (ASR) ASR provides a means to recover from a lockup caused by either the software or the hardware. The feature consists of a hardware countdown timer and a software driver, which periodically refreshes the countdown timer. If the driver fails to report in and refresh the timer, the ASR hardware timer normally resets the machine. When configured for NMI Crash Dump, in Windows NT 4.0, Windows 2000, SCO OpenServer 5 and SCO UnixWare 7 ASR initiates the NMI Crash Dump instead of resetting the machine ASR does not cover cases where the operating system or applications may be executing in an indeterminate state. These cases would require the system administrator to intervene and initiate the NMI with the crash dump button. Note: All Compaq systems require the Compaq health (systems management) driver to support ASR. Compaq Sysmgmt Driver (ASR Refresh) Crash Dump/Mass Storage Driver NMI Dump Button Hardware Abstraction Layer NMI Compaq Hardware (NMI Tracker) ASR Timer Crash dump file Figure 2: Simplified Block Diagram of NMI Crash Dump Architecture 11N8-0100A-WWEN