HP Surestore Disk Array 12h SGI IRIX Configuration Guide - Page 73

disk arrays supports SCSI, Fibre Channel FC/AL, and ESCON I/O interfaces.

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mutual hot standby system MVS NHAS node NVS OEM OFC OLM ORM OS P/DAS PA parity group partition path PC PCI PM port P-P PPRC PS P-VOL Two servers that are poised to cover for each other if necessary. Multiple Virtual Storage (including MVS/370, MVS/ESA, MVS/XA). Novell High Availability Server. Logically speaking, an environment where instances can be executed. Physically, a processor, which is an element of a cluster system. Nonvolatile storage. Original equipment manufacturer. Open Fibre Control. Optical link module. Online read margin. Operating system. PPRC/dynamic address switching. Physical address. A parity group is a mode of disk operation and configuration. It is synonymous with the term RAID group. Dividing a specific physical disk according to the HP-UX kernel or device driver layer, into two or more areas, as if there are two or more physical disks. On the XP256 array, a path and a LUN are synonymous. Paths are created by associating a port, a target, and a LUN ID to one or more LDEVs. Personal computer. Power control interface or peripheral component interconnect. HP Surestore Performance Manager XP software. The number of supported ports on an XP disk array is dependent upon the number of supported I/O slots and the number of ports available per I/O adapter. The XP family of disk arrays supports SCSI, Fibre Channel (FC/AL), and ESCON I/O interfaces. I/O support may vary with the selected disk array. A port is named based upon its port group and port letter. Examples of port names include CL1-A through CL1-R and CL2-A through CL2-R (letters I and O are skipped). Point-to-point. Peer-to-peer remote copy. Power supply. The primary or main volume that contains the data to be copied. Glossary 73

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Glossary
73
mutual hot standby
system
Two servers that are poised to cover for each other if necessary.
MVS
Multiple Virtual Storage (including MVS/370, MVS/ESA, MVS/XA).
NHAS
Novell High Availability Server.
node
Logically speaking, an environment where instances can be executed. Physically, a
processor, which is an element of a cluster system.
NVS
Nonvolatile storage.
OEM
Original equipment manufacturer.
OFC
Open Fibre Control.
OLM
Optical link module.
ORM
Online read margin.
OS
Operating system.
P/DAS
PPRC/dynamic address switching.
PA
Physical address.
parity group
A parity group is a mode of disk operation and configuration. It is synonymous with
the term RAID group.
partition
Dividing a specific physical disk according to the HP-UX kernel or device driver layer,
into two or more areas, as if there are two or more physical disks.
path
On the XP256 array, a path and a LUN are synonymous. Paths are created by
associating a port, a target, and a LUN ID to one or more LDEVs.
PC
Personal computer.
PCI
Power control interface or peripheral component interconnect.
PM
HP Surestore Performance Manager XP software.
port
The number of supported ports on an XP disk array is dependent upon the number of
supported I/O slots and the number of ports available per I/O adapter. The XP family of
disk arrays supports SCSI, Fibre Channel (FC/AL), and ESCON I/O interfaces.
I/O
support may vary with the selected disk array
.
A port is named based upon its port group and port letter. Examples of port names
include CL1-A through CL1-R and CL2-A through CL2-R (letters I and O are
skipped).
P-P
Point-to-point.
PPRC
Peer-to-peer remote copy.
PS
Power supply.
P-VOL
The primary or main volume that contains the data to be copied.