HP ProLiant DL320e Gen8 v2-Server - Manual (Page 11)

Component identification 11
NMI functionality
An NMI crash dump creates a crash dump log before resetting a system which is not responding.
Crash dump log analysis is an essential part of diagnosing reliability problems, such as failures of operating
systems, device drivers, and applications. Many crashes freeze a system, and the only available action for
administrators is to restart the system. Resetting the system erases any information which could support
problem analysis, but the NMI feature preserves that information by performing a memory dump before a
system reset.
To force the system to invoke the NMI handler and generate a crash dump log, do one of the following:
• Use the iLO Virtual NMI feature.
• Short the NMI header (" System board components " on page 9 ).
For more information, see the HP website ( http://www.hp.com/support/NMI ).
Drive numbering
• Two-bay LFF drive model
• Four-bay SFF drive model
Hot-plug drive LED definitions
Item LED Status Definition
1 Locate Solid blue The drive is being identified by a host application.
Flashing blue The drive carrier firmware is being updated or requires an update.
2 Activity ring Rotating green Drive activity
Off No drive activity
3 Do not remove Solid white Do not remove the drive. Removing the drive causes one or more of
the logical drives to fail.