Automatic Switching Operation Of The Storage Systems (Storage Cluster); Figure 11.2 Solution - Continuous Business (Storage Cluster) - Fujitsu ETERNUS AF250 S2 Configuration Manual

Chapter 11 Solution Configuration
11.1 Continuous Business
11.1.2

Automatic Switching Operation of the Storage Systems (Storage Cluster)

■
Solution Overview
Since data equivalence is maintained between two ETERNUS AF storage systems, even when one of the ETER-
NUS AF storage systems fails, operation can continue by switching the I/O access destination to the other
ETERNUS AF either manually or automatically (automatic failover).
Figure 11.2 Solution — Continuous Business (Storage Cluster)
Normal operation
Switch
Active
CA CA
Operation
data
Operation
data
ETERNUS AF
(Primary storage)
Monitor
■
Configuration Procedure
Connect business servers to the ETERNUS AF storage systems (Primary and Secondary storage systems) via
switches, and then connect the management server (ETERNUS SF Storage Cruiser) to the ETERNUS AF storage
systems via LANs.
To perform automatic failover, connect the Storage Cluster controller to ETERNUS AF storage systems (Pri-
mary and Secondary storage systems) via the LAN in order to detect trouble in the ETERNUS AF storage sys-
tems.
To configure Storage Cluster, perform the settings with ETERNUS SF Storage Cruiser.
●
Required Environment
Two ETERNUS AF storage systems are required.
To use Storage Cluster, the ETERNUS SF Storage Cruiser Storage Cluster option is necessary.
A Storage Cluster controller is required to perform automatic failover.
Business server
FC FC
SAN
Switch
Standby
CA CA
Mirrored
data
Replication
Mirrored
data
ETERNUS AF
(Secondary storage)
Storage Cluster
controller
Monitor
ETERNUS SF
Storage Cruiser
FUJITSU Storage ETERNUS AF250 S2, ETERNUS AF250 All-Flash Arrays Configuration Guide (Basic)
Copyright 2017 FUJITSU LIMITED
When a failure occurs
Standby
CA
Operation
data
Failure
Operation
data
ETERNUS AF
(Primary storage)
The Storage Cluster controller
detects a failure
in the Primary storage
160
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 AF
(Secondary storage)
Storage Cluster
controller
Monitor Monitor
ETERNUS SF
Storage Cruiser
P3AG-1832-04ENZ0