NEC Express5800/320Ma User Manual page 98

Glossary
hard reset
A process, initiated when the Express5800/320Ma system is not responding,
where the system controller tries to restore the operating system by trying either a
state-sensitive recovery
boot if the operating system is not running but standby power is available. See
"Resetting the Operating System" on page 3-4
reset.
heartbeat
A message that is sent periodically between the VTMs and the host system, and
between the primary and secondary VTMs, to monitor the connections.
host system
The Express5800/320Ma system that contains the VTMs. The term is used to
distinguish the Express5800/320Ma system from the VTM and from the
computer
ISO image file
An industry-standard file format monitored by the International Organization for
Standardization. In the context of mounting an image on the server, creating an
ISO image copies the entire contents of a CD-ROM, floppy, or file from a hard disk,
and enables you to mount the resulting image on the server. For example, if you
create an image of a CD-ROM, all of the folders and files on the CD-ROM are
replicated on the server when you mount the ISO image file.
non-maskable interrupt (NMI)
A process, initiated when the system is not responding, where the system
controller tries to restart the system by saving the contents of memory to a dump
file, and then restarting the operating system. The interrupts are intended to keep
all CPUs synchronized while the system controller attempts to resolve the problem.
See "Performing a Non-Maskable Interrupt" on page 3-3
of non-maskable interrupt.
peer VTM
A VTM used for redundancy in case one VTM fails. Typically refers to the VTM that
you are not currently logged in to. For example, if you are logged in to the primary
VTM, the peer VTM is the secondary VTM.
primary VTM
The active VTM. On the primary VTM you can use
(AVR) and
to the primary VTM if you want to use an AVR session or remote storage to
troubleshoot the host system.
Glossary-2 Express5800/320Ma: Virtual Technician Module User's Guide
(if the operating system is running), or a full
that is typically running the
remote storage, which are not available on the secondary VTM. Log on
for a complete explanation of a hard
VTM console.
for a complete explanation
Advanced Video Redirection
fault-resilient
client