Connecting The Optional Acp Cables - IBM N series Hardware Manual
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2. Review the output and perform the following tasks:
– If the output lists all of the IOMs, the IOMs have connectivity. Return to the cabling
procedure for your storage configuration to complete the cabling steps.
– IOMs might not be shown because the IOM is cabled incorrectly. The incorrectly cabled
IOM and all of the IOMs downstream from it are not displayed in the output. Return to
the cabling procedure for your storage configuration, review the cabling to correct
cabling errors, and verify SAS connectivity again.
6.1.6 Connecting the optional ACP cables
This section provides information about cabling the disk shelf ACP connections for a new
storage system installation. This section also provides information about cabling the optional
disk shelf ACP connections for a new storage system installation, as shown in Figure 6-6.
Figure 6-6 SAS shelf cable ACP connections
The following ACP cabling rules apply to all supported storage systems that use SAS storage:
You must use CAT6 Ethernet cables with RJ-45 connectors for ACP connections.
If your storage system does not have a dedicated network interface for each controller, you
must dedicate one for each controller at system setup. You can use a quad-port Ethernet
card.
All ACP connections to the disk shelf are cabled through the ACP ports, which are
designated by a square symbol or a circle symbol.
Chapter 6. Cabling expansions
65
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