Fujitsu ETERNUS AF250 S2 Configuration Manual page 14

FUJITSU Storage ETERNUS AF series and ETERNUS DX S4/S3 series
System availability can be further improved by providing redundancy for the management servers and by installing them in different sites.
The following figure shows a layout in which WSFC is used for management server clustering.
A
Management server
Business servers
Fibre Channel switch
Business drives
(using Storage Cluster for clustering)
WSFC shared drives
(using Storage Cluster for clustering)
The management servers, business servers, Fibre Channel switches, and storage systems are installed in different buildings, on different
floors, or in different racks.
Separate management servers, business servers, and storage systems are clustered between different sites. In addition, the active nodes of
the business servers and storage system are located in a different site from the active node of the management server.
In the above example, site A is used for the active business servers and storage system and site B for the active management server.
This means that, in the event of a problem that affects the entirety of site A, monitoring continues to function, and the system continues to
operate by switching over to site B.
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Standby
Active
Active
ETERNUS AF/DX
Figure-7 Layout in which WSFC is used for management server clustering
B
Active
Clustered
Standby
Clustered
Standby
Clustered
Business drives
(using Storage Cluster for clustering)
Clustered
WSFC shared drives
(using Storage Cluster for clustering)
Legend
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Management server
Business servers
Fibre Channel switch
ETERNUS AF/DX
Building/machine room/rack
SAN
LAN, used for operation and monitoring
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