NonStop System Glossary

Glossary
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19-inch rack
A computer rack that accepts 19-inch components in 1-u increments. The 19-inch racks can differ
in depth, rails, and mounting requirements. A 19-inch rack, doors, PDU extension, and optional
side panels make up a modular cabinet.
3-phase
Describes a single power source with three output phases (A, B, and C). The phase difference
between any two of the three phases is 120 degrees.
3860 ATM 3 ServerNet adapter (ATM3SA)
See ATM 3 ServerNet adapter (ATM3SA).
3861 Ethernet 4 ServerNet adapter (E4SA)
See Ethernet 4 ServerNet adapter (E4SA).
3862 Token-Ring ServerNet adapter (TRSA)
See Token-Ring ServerNet adapter (TRSA).
3863 Fast Ethernet ServerNet adapter (FESA)
See Fast Ethernet ServerNet adapter (FESA).
3865 Gigabit Ethernet ServerNet adapter (GESA)
See Gigabit Ethernet ServerNet adapter (GESA).
4-port ServerNet extender (4PSE)
A multiport ServerNet extender that is installed in slots 1 and 2 of an I/O adapter module (IOAM).
A 4PSE extends ServerNet connectivity from the IOAM enclosure midplane to the rear panel. A
4PSE is used to provide ServerNet connectivity without a processor switch in the system.
4619 disk drive
An 18-gigabyte, 15,000-rpm, small computer system interface (SCSI) disk drive for HP NonStop
S-series enclosures. The 4619 disk drive can coexist and operate with lower-capacity or lower-speed
drives in the same storage subsystem module.
4637 disk drive
A 36-gigabyte, 10,000-rpm, small computer system interface (SCSI) disk drive for NonStop S-series
enclosures.
4638 disk drive
A 36-gigabyte, 15,000-rpm, small computer system interface (SCSI) disk drive for NonStop S-series
enclosures.
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