1.
Verify that all pre-requisites are permanently applied.
2.
Install the SAS controllers into the system or partition.
Note:
Do not attach any cables to the SAS controllers.
3.
To prevent errors while connecting the cables, perform a normal shutdown of the system or partition
before you attach the cables.
4.
Attach the necessary SAS cables from the shared disk enclosure to the same SAS connector on each
controller. To see examples of how to cable the Dual storage IOA configurations, see SAS cabling
considerations.
5.
Power on your system or partition.
6.
Verify that the cabling and functioning of the controllers are correct by using the Dual storage IOA
configuration screen, see Viewing dual storage IOA attributes.
7.
Best performance is achieved when dual storage IOA access characteristics for each disk array is such
that the workload is balanced between the two controllers. Refer to Dual storage IOA access
optimization and create or change the RAID configuration as necessary.
For additional details on how to set up a configuration, see Installing dual storage IOA configuration.
Related concepts
“SAS cabling considerations” on page 25
Cabling your system correctly is one of the most important aspects of planning for a dual storage I/O
adapter (IOA) configuration.
“Dual storage IOA access optimization” on page 26
View the active or passive path of your disk units and controller.
“Installing dual storage IOA configurations” on page 28
Use this procedure to help you to install a dual storage IOA configuration.
Related tasks
“Viewing dual storage IOA attributes” on page 24
This topic collection provides the details for using the Auxiliary Storage Hardware Resource Detail
display to obtain dual storage I/O adapter (IOA) configuration information.
Chapter 5. Dual storage IOA configurations
29
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