Huawei OceanStor 5300 V3 User Manual

N
o.
Faul
t
Typ
e
Fault Diagram Hyper
Metro
Pair
Runni
ng
Status
Arbitration
Result
11 The
activ
e
quor
um
serve
r
malf
uncti
ons.
At
the
same
time,
the
link
betw
een
two
stora
ge
array
s is
down
.
Quorum server (active)
Data center A Data cente B
Quorum server (standby)
To be
synchro
nized
The standby
quorum server
takes over the
arbitration
services from
the active
quorum server.
Both A and B
stop.
NOTE
You must
manually start
A to resume
providing
services for
hosts.
Green cable: HyperMetro replication network
Blue solid cable: quorum network between the active quorum server and data centers
Blue dotted cable: quorum network between the standby quorum server and data centers
1.3.4 HyperMetro I/O Processing Mechanism
HyperMetro uses the dual-write and DCL technologies to synchronize data changes between
two data centers, ensuring data consistency.
Basic Concepts
You are advised to know the key concepts of HyperMetro before reading the I/O processing
mechanism. For details, see 1.3.1 Basic Concepts.
Data HyperMetro Implementation
The core for implementing data HyperMetro of two storage arrays lies in the tenant-based
logical port mechanism and dual-write mechanism. Data changes can be synchronized using
OceanStor V3 Series
HyperMetro Feature Guide for File
1 Feature Description
Issue 05 (2018-01-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
25

Huawei OceanStor 5300 V3 Specifications

General

Brand	Huawei
Model	OceanStor 5300 V3
Category	Storage
Language	English