NL_Port
A special port that is on the fibre channel arbitrated loop. The NL_Port
and the N_Port have the same function, logical structure, and ability for
processing information; however, the NL_Port is connected to the
arbitrated loop and the N_Port is connected to the optical network. Some
port products can be used as an N_Port or an NL_Port based on the
network that they are connected to. When the NL_Port is in passive loop
mode, the NL_Port must copy and transmit the frame.
Normal Share
An authorized user can access the whole shared space.
NSSwitch
Name Service Switch (NSS) provides a single configuration location to
identify the services (such as NIS or LDAP) for network information
such as hosts, groups, or passwords.
O
Online backup
A form of backup in which the data being backed up may be accessed
by applications during the backup.
Online LUN
expansion
A process of expanding LUN capacity online without interrupting
services.
Original LUN
The LUN where the original data of the copied LUNs is located.
Outband
management
A management mode used during outband networking. In the outband
management mode, the management and control information of the
network and the bearer service information of the user network are
transmitted through different logical channels.
Overload
protection
The measure of installing additional protection devices in case that the
overloaded main power lines cause damage to the protector as a result
of overheat.
Owning
controller
The controller you specified to manage a specific LUN. When the
owning controller of the LUN is invalid, another controller manages the
LUN automatically. When the owning controller of the LUN is restored,
the original controller manages the LUN again.
P
Parity disk
The disk for saving check data in RAID groups.
PEM/fan module
The PEM/fan module consists of power supplies, fans, power switches,
and power sockets.
Physical IP
addresses
The IP address is binded with specific NIC port of N8000 clustered NAS
engine, and this IP can't float between engines.
Physical path
The actual path from the HBA card of the application server to the front-
end host port of storage arrays. Regardless of switches on the path, the
physical path is only decided by the corresponding relation between the
host HBA card and the array port.
OceanStor N8500 Clustered NAS Storage System
Installation Guide (for T Series V100R005)
C Glossary
Issue 02 (2015-09-22)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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