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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/).
Two Servers Connected to a Single 12 Gb 4–Port SAS Storage Controller
A storage system with four 12 Gb front-end SAS ports on a single storage controller can connect up to
two host servers, if each host server has two SAS HBAs
About this task
In this configuration, there are four fault domains and the storage controller is connected to each host
server using two SAS connections.
NOTE: This configuration is vulnerable to storage controller unavailability, which results in a loss of
connectivity between the host servers and storage system.
Steps
1. Connect fault domain 1 to the host server 1, by connecting a SAS cable from storage controller 1:
port 1 to host server 1.
2. Connect fault domain 2 to the host server 1, by connecting a SAS cable from storage controller 1:
port 2 to host server 1.
3. Connect fault domain 3 to the host server 2, by connecting a SAS cable from storage controller 1:
port 3 to host server 2.
4. Connect fault domain 4 to the host server 2, by connecting a SAS cable from storage controller 1:
port 4 to host server 2.
Example
Figure 47. Storage System with One 12 Gb SAS Storage Controller Connected to Two Host Servers
1. Server 1 2. Server 2
3. Storage system 4. Storage controller
Next steps
Install or enable MPIO on the host servers.
Front-End Cabling
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