Open SCSI Integrator's Manual for NonStop S-Series Servers

Glossary
Open SCSI Integrator’s Manual for NonStop Servers—422988-002
Glossary-5
correctable memory error (CME)
correctable memory error (CME). An error caused by incorrect data at a particular memory
location. The cause of the error is such that the error is automatically corrected by the
system. Contrast with uncorrectable memory error (UCME).
COUP. See Configuration Utility Program (COUP)
.
CPU. See central processing unit (CPU)
.
CRU. See customer-replaceable unit (CRU)
.
current configuration file. See configuration file
.
customer engineer (CE). See service provider
.
customer-installable system. A system that does not require specially trained service
providers to install.
customer-replaceable unit (CRU). A subset of field-replaceable units (FRUs) that can be
installed and serviced (replaced) by customers, without using special tools or special HP
training. CRUs can be replaced while the system is running. See also field-replaceable
unit (FRU).
dark site. See unattended site
.
DC power cable. A cable that delivers DC power from the power shelf to the processor
multifunction (PMF) customer-replaceable unit (CRU) in a Himalaya S7x000 server.
dial-out point. A TSM workstation from which incident reports are sent to a service
provider. Incident reports are sent only from the TSM workstations defined as the
primary and backup dial-out points (the primary and backup system consoles).
DIMM. See dual inline memory module (DIMM)
.
disk bootstrap. A software entity residing on disk that is used to load the operating system
image (OSIMAGE) into memory during a system load. A disk that contains the disk
bootstrap is referred to as a bootable disk. The disk bootstrap is either placed on the
disk as part of a tape load or as a result of the SCF CONTROL DISK, REPLACEBOOT
command.
disk cache. A temporary storage buffer into which data is read, retained, and perhaps updated
before being written to disk, for more efficient processing.
disk drive. A device that stores and accesses data on a disk. There are two types of disk
drives: magnetic and optical. Random access to addressable locations on a magnetic disk
is provided by magnetic read/write heads. Random access to addressable locations on an
optical disk is provided by a low-intensity laser. Optical disk drives are not supported in
G-series releases.
DISK object type. The Subsystem Control Facility (SCF) object type for all disk devices
attached to your system.