Using the NMI Button to Create a Dump File
3-22
Stratus ftServer 2600, 4500, and 6300 Systems: Operation and Maintenance Guide
(R639)
Pressing the NMI button stops any running applications.
Do not perform a dump operation if you want any
applications to continue in operation. Instead, schedule
downtime for this procedure. If your CPU- I ⁄ O enclosures
are duplexed, you might prefer to use operating system
commands to dump system memory while keeping the
system online.
The NMI button and the PRIMARY LED are located
behind the system bezel and are not visible if the bezel is
attached. You can remove the bezel to access the buttons
and LEDs, or you can use the ftSMC snapin to initiate
Dump or Dump and Go commands and to view the LED
states. See the
Stratus ftServer System Administrator’s
Guide for the Windows Operating System
(R014W) for
details.
When a system is in duplex mode, the NMI button on the active CPU-I/O enclosure is
enabled. When a system is in Active Upgrade mode, the NMI buttons on both
enclosures are activated.
To create a dump file, press and hold the NMI button on the active enclosure for four
to eight seconds, then release it.
If you use the NMI button incorrectly, or if the button is pressed by mistake, the system
handles the dump signal as follows:
• If you tap the button, hold it for less than four or longer than eight seconds, the
system counts this as a spurious signal and ignores it.
• If you press the button more than once within a five-second period, the system also
counts this as a spurious signal and ignores it.
If you intend to generate a dump file for an enclosure
where the NMI button has been disabled, you should use
another method to save the dump file before resetting the
BMC, because otherwise you might lose valuable
troubleshooting data.
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