Automatic Switching Operation Of The Storage Systems (Storage Cluster); Figure 9.2 Solution - Continuous Business (Storage Cluster) - Fujitsu ETERNUS DX500 S3 Configuration Manual

Chapter 9 Solution Configuration
9.1 Continuous Business
9.1.2

Automatic Switching Operation of the Storage Systems (Storage Cluster)

■
Solution Overview
Since data equivalence is maintained between two ETERNUS DX storage systems, even when one of the
ETERNUS DX storage systems fails, operation can continue by switching the I/O access destination to the oth-
er ETERNUS DX either manually or automatically (automatic failover).
Figure 9.2 Solution — Continuous Business (Storage Cluster)
Normal operation
Switch
Active
CA CA
Operation
data
Operation
data
ETERNUS DX
(Primary storage)
Monitor
FUJITSU Storage ETERNUS DX500 S3/DX600 S3 Disk storage system Configuration Guide (Basic)
Business server
FC FC
SAN
Switch
Standby
CA CA
Mirrored
data
Replication
Mirrored
data
ETERNUS DX
(Secondary storage)
Storage Cluster
controller
Monitor
ETERNUS SF
Storage Cruiser
Copyright 2014 FUJITSU LIMITED
When a failure occurs
Standby
CA
Operation
data
Failure
Operation
data
ETERNUS DX
(Primary storage)
The Storage Cluster controller
detects a failure
in the Primary storage
136
Business server
Operations can continue
by switching to
the Secondary storage
FC FC
SAN
Switch Switch
Active
Failover
CA CA CA
Mirrored
data
Mirrored
data
ETERNUS DX
(Secondary storage)
Storage Cluster
controller
Monitor Monitor
ETERNUS SF
Storage Cruiser
P3AM-7732-05ENZ0