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Basic Active-Active Single-Port Topology
Choose this topology when your application requires a high-
performance, robust, full system-level fault-tolerant disk storage solution
with transparent controller failover/failback. This dual controller
configuration supports a host with a single-port HBA and is ideal when
the host driver software does not support LUNs that appear twice.
Note: This configuration is shown with hubs enabled.
Connect the fibre channel data cables as shown in
Figure
2-28.
Host I/O
P1
P2
Host System #1 HBA #1
P4
P3
Figure 2-27 Logical Diagram – Single Host, Single HBA, Hubs Enabled
Power
Power
Supply
Supply
Figure 2-28 Host Cabling Diagram – Single Host, Single HBA, Hubs Enabled
RAID Controller
FC1
Active
HUB
FC2
Passive
HUB
Controller 1
RAID Controller
FC1
Passive
Host I/O
Connectors
Active
FC2
Controller 2
Host Computer
Fibre Channel Data Cable
Connect to P2
SAFTE Disk I/O
Chl 1
Cooling
Fans
Chl 0
Host I/O
P1
P2
Ctlr 1
SAF-TE
Setting Up Your Storage Subsystem
Disk
CH1
Disk
CH2
Disk
CH0
Disk
CH3
Disk
CH1
Termination
Disk
CH2
Termination
Disk
CH0
Termination
Disk
CH3
Termination
FC HBA 1
Chl 2
I/O
RAID Controller
Chl 3
P4
P3
RAID Controller
Ctlr 2
Fibre Channel Jumper Cable
Figure 2-27
Drives 7 - 12
SEP
Termination
SEP
Drives 1 - 6
SAF-TE Disk I/O
Termination
I/O Card
and
2-23
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