NonStop System Glossary

G4SA

See Gigabit Ethernet 4-port ServerNet adapter (G4SA).

GART

See graphics address remapping table (GART).

gateway

1. A device used to convert the message protocol of one network to that of another.

2. A short code sequence that accomplishes the transition to privileged mode for legitimate calls

to callable procedures. See also far gateway.

See gigabyte (GB).

GCSC

See Global Customer Support Center (GCSC). See also Global Mission Critical Solution Center

(GMCSC).

general-purpose register (GPR)

One of a small number of undedicated high-speed memory locations in a processor.

generic process

A process created and managed by the Kernel subsystem; also known as a system-managed

process. A common characteristic of a generic process is persistence.

GESA

See Gigabit Ethernet ServerNet adapter (GESA).

Gigabit Ethernet 4-port ServerNet adapter (G4SA)

A multiport ServerNet adapter that provides 1000 megabits/second (Mbps) data transfer rates

between NonStop systems and Ethernet LANs. The G4SA is installed in slots 1, 2, 3, 4, and 5 of

an I/O adapter module (IOAM). There are two IOAMs in an I/O adapter module (IOAM) enclosure,

so a total of 10 G4SAs can be installed in an enclosure. The G4SA is the only LAN adapter

supported for the IOAM enclosure. Although the G4SA implements the Ethernet 4 ServerNet adapter

(E4SA), Fast Ethernet ServerNet adapter (FESA), and the Gigabit Ethernet ServerNet adapter

(GESA) functions, it cannot be installed in a NonStop S-series enclosure.

Gigabit Ethernet ServerNet adapter (GESA)

A single-port ServerNet adapter that provides 1000 megabits/second (Mbps) data transfer rates

between NonStop systems and Ethernet LANs. A GESA can be directly installed in slots 51 through

54 of an I/O enclosure and slots 53 and 54 of a processor enclosure.

Two versions of the GESA are available:

• 3865 GESA-C (T523572): a single-port copper version compliant with the 1000 Base-T

standard (802.3ab)

• 3865 GESA-F (T523572): a single-port fiber version compliant with the 1000 Base-SX standard

(802.z)

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