NonStop S-Series Server Description Manual (G06.24+)
Glossary
HP NonStop S-Series Server Description Manual—520331-003
Glossary-68
operator message
tasks associated with the HP NonStop Kernel operating system and the hardware of a 
NonStop node. The operator issues commands to subsystems; retrieves, examines, 
and responds to event messages; or does any combination of those things. See also 
local operator. Contrast with administrator. (4) For a UNIX system, any interactive user 
of that system.
operator message. A message, intended for an operator, that describes a significant event 
on an HP NonStop™ S-series system. An operator message is the displayed-text form 
of an Event Management Service (EMS) event message.
optical disk cartridge. A container that protects an optical disk platter from damage and 
allows easy handling. Each cartridge contains two optical disk volumes.
optical disk drive. An optical storage library component that holds optical disk cartridges 
during read and write operations.
Optical Disk Process (ODP). The software I/O process that controls an optical storage 
library (OSL) and its optical disk volumes.
optical disk volume. One side of an optical disk cartridge.
optical storage library (OSL). A storage device consisting of an optical disk cabinet, 
optical disk drives, multiple storage cells for optical disk cartridges, a robot that 
automatically loads the cartridges into and unloads them from the drives, and a 
cartridge access port (CAP) where an operator can load cartridges into or remove 
cartridges from the OSL.
option. In a UNIX or Open System Services (OSS) command, a flag and its parameters or 
a flag without parameters.
ordinary library. A dynamic-link library (DLL) or shared run-time library (SRL) that is not 
public. See ordinary dynamic-link library (ordinary DLL).
ordinary dynamic-link library (ordinary DLL). A dynamic-link library (DLL) or shared 
run-time library (SRL) that is not public; the code file is found at run time and can be 
provided by the user. Contrast with public dynamic-link library (public DLL).
orphaned process group. In the Open System Services (OSS) environment, a process 
group in which the parent of every member either is also a member of the process 
group or is a member of a different session.
orphan file. In the Open System Services (OSS) environment, a file with no corresponding 
inode in the PXINODE file.
orphan inode. In the Open System Services (OSS) environment, an inode that appears in 
the PXINODE file but has no links in the PXLINK file.
OSC. See Online Support Center (OSC).










