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b. Connect a SAS cable from storage controller 2: port 3 to host server 2.
4. Connect fault domain 4 (shown in red) to the host server 2.
a. Connect a SAS cable from storage controller 1: port 4 to host server 2.
b. Connect a SAS cable from storage controller 2: port 4 to host server 2.
Example
Figure 45. Storage System with Dual 12 Gb SAS Storage Controllers Connected to Two Host Servers
1. Server 1 2. Server 2
3. Storage system 4. Storage controller 1
5. Storage controller 2
Next steps
Install or enable MPIO on the host servers.
NOTE: After the Storage Center configuration is complete, run the host access wizard to configure
host server access and apply MPIO best practices. For the latest best practices, see the Dell Storage
Center Best Practices document located on the Dell TechCenter (http://en.community.dell.com/
techcenter/storage/).
Four Servers Connected to Dual 12 Gb 4–Port SAS Storage Controllers
A storage system with four 12 Gb front-end SAS ports on each storage controller can connect to up to
four host servers, if each host server has one HBA with dual SAS ports.
About this task
In this configuration, four fault domains are spread across both storage controllers. The storage
controllers are connected to each host server using two SAS connections.
If a storage controller becomes unavailable, all of the standby paths on the other storage controller
become active.
Steps
1. Connect fault domain 1 (shown in orange) to the host server 1.
Front-End Cabling
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