Automatic Switching Operation Of The Storage Systems (Storage Cluster); Figure 16 Solution - Continuous Business (Storage Cluster) - Fujitsu ETERNUS DX S5 Series Configuration Manual

11. Solution Configuration
Business Continuity

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 other
ETERNUS DX either manually or automatically (automatic failover).
Figure 16 Solution — Continuous Business (Storage Cluster)
Normal operation
FC
Switch
Active
CA CA
Operation
data
Operation
data
ETERNUS DX
(Primary storage)
Monitor
■
Configuration Procedure
Connect business servers to the ETERNUS DX storage systems (Primary and Secondary storage systems) via
switches, and then connect the management server (ETERNUS SF Storage Cruiser) to the ETERNUS DX storage
systems via LANs.
To perform automatic failover, connect the Storage Cluster controller to ETERNUS DX storage systems (Primary
and Secondary storage systems) via the LAN in order to detect trouble in the ETERNUS DX storage systems.
To configure Storage Cluster, perform the settings with ETERNUS SF Storage Cruiser.
●
Required Environment
Two ETERNUS DX 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.
●
Configuration Procedure
Use ETERNUS SF Storage Cruiser to perform the following settings.
• Registration of the ETERNUS DX
• License Registration
Registration and configuration for servers and FC switches
•
Business server
FC
SAN
Switch
Standby
CA CA
Mirrored
data
Replication
Mirrored
data
ETERNUS DX
(Secondary storage)
Storage Cluster
controller
Monitor
ETERNUS SF
Storage Cruiser
When a failure occurs
FC
Switch
Standby
CA CA
Operation
data
Failure
Operation
data
ETERNUS DX
(Primary storage)
Monitor
The Storage Cluster controller
detects a failure
in the Primary storage
189
Business server
Operations can continue
by switching to
the Secondary storage
FC
SAN
Switch
Active
Failover
CA CA
Mirrored
data
Mirrored
data
ETERNUS DX
(Secondary storage)
Storage Cluster
controller
Monitor
ETERNUS SF
Storage Cruiser
Configuration Guide (Basic)