Fujitsu ETERNUS AX Series Installation And Cabling Manual page 7

Procedure
1. Cable the shelf-to-shelf connections within each stack if the stack has more than one disk shelf; otherwise,
go to the next step:
For a detailed explanation and examples of shelf-to-shelf "standard" cabling and shelf-to-shelf "double-
wide" cabling, see the "shelf-to-shelf connection rules" section.
If...
You are cabling a multipath HA, multipath, single-
path HA, or single-path configuration
You are cabling a quad-path HA or quad-path
configuration
2. Identify the controller SAS port pairs that you can use to cable the controller-to-stack connections.
a) Check the controller-to-stack cabling worksheets and cabling examples sections to see whether a
completed worksheet exists for your configuration.
b) The next step depends on whether a completed worksheet exists for your configuration:
Table 3:
If...
There is a completed worksheet for your
configuration
There is no completed worksheet for your
configuration
3. Cable the controller-to-stack connections using the completed worksheet.
Instructions about how to read a worksheet to cable controller-to-stack connections can be found towards
the back of this guide.
4. Connect the power supplies for each disk shelf:
a) Connect the power cords first to the disk shelves, securing them in place with the power cord retainer,
and then connect the power cords to different power sources for resiliency.
b) Turn on the power supplies for each disk shelf and wait for the disk drives to spin up.
| Installing and cabling disk shelves with IOM12 modules for a new system installation |
Then...
Cable the shelf-to-shelf connections as "standard"
connectivity (using IOM ports 3 and 1):
a. Beginning with the logical first shelf in the
b. Repeat substep a for IOM B.
c. Repeat substeps a and b for each stack.
Cable the shelf-to-shelf connections as "double-
wide" connectivity:
You cable the standard connectivity using IOM ports
3 and 1 and then the double-wide connectivity
using IOM ports 4 and 2.
a. Beginning with the logical first shelf in the
b. Beginning with the logical first shelf in the
c. Repeat substeps a and b for IOM B.
d. Repeat substeps a through c for each stack.
stack, connect IOM A port 3 to the next shelf's
IOM A port 1 until each IOM A in the stack is
connected.
stack, connect IOM A port 3 to the next shelf's
IOM A port 1 until each IOM A in the stack is
connected.
stack, connect IOM A port 4 to the next shelf's
IOM A port 2 until each IOM A in the stack is
connected.
Then...
Go to the next step.
You use the existing completed worksheet.
Fill out a controller-to-stack cabling worksheet
template.
Worksheet templates can be found towards the
back of this guide.
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