IBM 8248-L4T Manual page 104

The following information is for use after the FC 5901 SAS Storage Adapter is installed. Install the
adapter and then return here. For instructions, see, PCI adapters.
You should also review the tasks in "Before you begin" on page 129 if you have not already done so.
This feature allows you to split the internal disks in the system unit enclosure into groups which you can
manage separately.
1. Stop and power off the system if it is not already. For instructions, see "Stopping a system or logical
partition" on page 143.
2. Cable a single system unit enclosure by doing the following:
a. Attach the cable to the SAS port on the rear bulkhead of the system unit enclosure to the top port
in the SAS Storage Adapter, as shown in the following figure.
Restriction: Internal disk drive sharing is only available when internal cable feature FC 1815 is
installed from the DASD backplane to the read bulkhead of the system unit enclosure. Also,
feature FC 5662 175 MB cache RAID - dual IOA enablement card must not be installed. The SAS
Storage Adapter can be in any of the other slots that support it.
b. Secure any extra cable.
3. Start the system. For instructions, see "Starting the system or logical partition" on page 139.
4. Verify that the feature is installed and working. For instructions, see "Verifying the installed part" on
page 149.
With this function installed, 2 of the 6 of the disks in the system enclosure can be managed by the SAS
Storage Adapter.
Note: The Removable Media device is always controlled by a separate embedded SAS controller on the
system planar.
Now, you can manage the disks as you would manage any other disks.
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Disk drives or solid-state drives