You can increase availability using a dual storage I/O
adapter (IOA) configuration to connect multiple controllers to a common
set of disk expansion drawers and the included disks and disk arrays.
Note: Not all controllers support all configurations. See the PCI-X
SAS RAID cards or the PCIe SAS RAID card comparison tables to look
for controllers that have dual storage IOA configurations.
Possible disk storage IOA configurations
This topic shows a table illustrating what is needed to
have dual storage IOA configurations with RAID or system mirroring
and images of dual storage IOA configurations.
Viewing dual storage IOA attributes
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.
SAS cabling considerations
Cabling your system correctly is one of the most important
aspects of planning for a dual storage I/O adapter (IOA) configuration.
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