Fujitsu ETERNUS DX S5 Series - Improving Host Connectivity; Host Affinity; Figure 68 Host Affinity

Improving Host Connectivity
Host Affinity
The host affinity function prevents data from being damaged due to inadvertent storage access. By defining a
server that can access the volume, security can be ensured when multiple servers are connected.
Figure 68 Host Affinity
Permission for Server A
LUN#0
→
Volume#0 ... LUN#255
→
Volume#255
Permission for Server B
LUN#0
→
Volume#256 ... LUN#255
→
Volume#511
Permission for Server C
LUN#0 Volume#512 ... LUN#255 Volume#767
Permission for Server D
LUN#0 Volume#768 ... LUN#255 Volume#1023
→ →
→ →
Switch
Server A
LUN#0
:
LUN#255
Server B
LUN#0
LUN#255
Server D
LUN#0
:
LUN#255
Server C
LUN#0
:
LUN#255
Volume#0
:
Volume#255
Volume#256
:
Volume#511
Volume#512
:
Volume#767
Volume#768
Volume#1023
:
Port
Port
:
ETERNUS DX
The host affinity can be set by associating "host groups", "CA port groups", and "LUN groups".
3. SAN Functions
Improving Host Connectivity
137 Design Guide