General EVA6400 expansion cabling guidelines
To adapt the cabling used in Figure 23 to different configurations, follow these cabling guidelines:
• Controller A
• DP1-A on controller A connects to P1 (I/O-A) on the top disk enclosure in the first loop (expan-
sion rack).
• DP2-A on controller A connects to P1 (I/O-A) on the top disk enclosure in the second loop
(expansion rack).
• DP1-B on controller A connects to P2 (I/O-B) on the bottom disk enclosure in the first loop (main
rack).
• DP2-B on controller A connects to P2 (I/O-B) on the bottom disk enclosure in the second loop
(main rack).
• Controller B
• DP1-A on controller B connects to P2 (I/O-A) on the bottom disk enclosure in the first loop
(main rack).
• DP2-A on controller B connects to P2 (I/O-A) on the bottom disk enclosure in the second loop
(main rack).
• DP1-B on controller B connects to P1 (I/O-B) on the top disk enclosure in the first loop (expansion
rack).
• DP2-B on controller B connects to P1 (I/O-B) on the top disk enclosure in the second loop (ex-
pansion rack).
• Disk enclosures
• P1 (I/O-A) on the top disk enclosure in the first loop (main rack) connects to P2 (I/O-A) on the
bottom disk enclosure in the first loop (expansion rack).
• P1 (I/O-A) on the top disk enclosure in the second loop (main rack) connects to P2 (I/O-A) on
the bottom disk enclosure in the second loop (expansion rack).
• P1 (I/O-B) on the top disk enclosure in the first loop (main rack) connects to P2 (I/O-B) on the
bottom disk enclosure in the first loop (expansion rack).
• P1 (I/O-B) on the top disk enclosure in the second loop (main rack) connects to P2 (I/O-B) on
the bottom disk enclosure in the second loop (expansion rack).
Connecting an EVA8400 multi-product rack to a 0C6D expansion rack
For reference, Figure 24 shows a fully cabled EVA8400 2C6D main rack configuration. The
multi-product rack example assumes that there is non-EVA hardware in the rack above the controllers.
Connecting the main rack to the expansion rack32
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