Huawei OceanStor S5600 Initial Configuration Manual page 134

B Glossary
Host
Host port module
Hot backup/
Online backup
Hot swap
Hot-spare disk
Hot-spare disk
reconstruction
HyperCopy
HyperImage
I
I/O
Inband
management
Inconsistent
stripe
Incremental
hypercopy
Initialize
initiator
B-6
The "host" displayed in the OSM3.0 interface is a created virtual host.
After a port is added to the host, the host can correspond to a physical
application server.
A module that bears the various types of host ports, for example, SAS
host port, FC host port, and iSCSI host port.
A form of backup in which the data being backed up may be accessed
by applications during the backup.
In a running system, inserting or removing a blade does not affect
normal running of the system.
The disk that is used to replace the damaged member disk in a RAID
group. A spare disk carries the data that is saved on faulty disks.
A function of the OceanStor storage system. It refers to the process of
restoring the data from the faulty member disk in a RAID group to the
spare disk.
The function of copying the original LUN data to one or multiple target
LUNs in the full or incremental mode.
Hyper image creats a usable copy of a data object. It includes the
mapping of the data object in ponit time.
Data movement process between memory and peripheral devices in the
computer system. I/O is a collective name, indicating the operations
reading data into the memory and writing data to other places from
computer memory.
A method of transmission between the management control information
on the network and the bearer service information on the user network
through the same logical channel. Inband management enables users to
manage disk arrays through commands. Management commands are
sent through the service channel, that is, the I/O read-and-write channel.
The advantage is quick and stable transmission, which requires no other
management network port.
The protection of the check data block in a redundancy group stripe for
the protected space in the stripe is invalid.
When incremental hyper copy is initialized, the original LUN data is
copied to the target LUN. When incremental hypercopy is started
afterwards, only the difference between the original LUN and the target
LUN is copied synchronously, instead of all the LUN data.
The process of writing 0 bits in the data area on the logical drive and
generating related parity bits so that the logical drive can be in the ready
state.
A system component that can initiate an I/O operation on an I/O bus or
on a network.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
OceanStor S5600 Storage System
Initial Configuration Guide
Issue 02 (2009-09-30)