Controller-To-Stack Cabling Worksheet Template For Multipathed Connectivity - Fujitsu ETERNUS AX Series Installation And Cabling Manual

Controller-to-stack cabling worksheet template for
multipathed connectivity
By completing the worksheet template, you can define the controller SAS port pairs you can use to cable
controllers to stacks of disk shelves with IOM12 modules to achieve multipathed connectivity in an HA pair or
single-controller configuration. You can also use the completed worksheet to walk yourself through cabling
the multipathed connections for your configuration.
Before you begin
Your HA pair or single-controller configuration cannot be a HX2000 configuration. HX2000 configurations
use a unique worksheet; see the "Controller-to-stack cabling worksheets and cabling examples for common
HX2000 configurations" section.
About this task
• This procedure and worksheet template is applicable to cabling multipathed connectivity for a multipath
HA or multipath configuration with one or more stacks.
Examples of completed worksheets are provided for multipath HA and multipath configurations.
A configuration with two quad-port SAS HBAs and two stacks of disk shelves with IOM12 modules is used
for the worksheet examples.
• The worksheet template allows for up to six stacks; you need to add more columns if needed.
• If needed, you can refer to the "SAS cabling rules" section for information about supported configurations,
the controller slot numbering convention, shelf-to-shelf connectivity, and controller-to-shelf connectivity
(including use of port pairs).
• If needed, after you complete the worksheet, you can refer to the "How to read a worksheet to cable
controller-to-stack connections for multipathed connectivity" section.
Procedure
1. In the boxes above the gray boxes, list all SAS A ports on your system, and then all SAS C ports on your
system in sequence of slots (0,1, 2, 3, and so on).
For example: 1a, 2a, 1c, 2c
2. In the gray boxes, list all SAS B ports on your system, and then all SAS D ports on your system in sequence
of slots (0,1, 2, 3 and so on).
For example: 1b, 2b, 1d, 2d
3. In the boxes below the gray boxes, rewrite the D and B port list so that the first port in the list is moved to
the end of the list.
For example: 2b, 1d, 2d, 1b
4. Circle (designate) a port pair for each stack.
When all port pairs are being used to cable the stacks in your system, circle port pairs in the order in which
they are defined (listed) in the worksheet.
| Controller-to-stack cabling worksheet template for multipathed connectivity |
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