DS8000 Service Documentation Version 7.5

FC-AL cables - Models 951, 95E (business class)

Use the point-to-point cabling diagrams below to route the FC-AL cables on a Model 951, with or without expansion racks.

Racks are shown with the maximum number of storage enclosures and device adapter cards. Your rack might contain fewer storage enclosures or device adapter cards.
The figures that follow show the maximum number of racks in a storage facility with these rack models.
FC-AL cables and connectors are identified with two different color codes and a location designator:
1. A colored band, corresponding to the color code of the DA pair, is found on each end of the cable near the connector. These color codes are shown in Figure 2.
2. The connector itself is color coded to help prevent cross-cabling at the Fibre Channel interface card (FCIC) or device adapter card (DA) end. The connectors will always appear in the following order:
```
beige (T1), green (T2), black (T3), and blue (T4)	
```
  as shown in Figure 3 and Figure 4. This color code is specific to each FCIC or DA, and is independent of the DA pair color code.
3. A black or white label at each end of the cable shows a location designator (for example, 0A2). Both ends of the cable will have the same location designator and DA pair color code. However, the connector at each end of the same cable will usually NOT have the same color code.
Location designators are in the form CTP, where:
C

is the device adapter pair (0-7)

T

is the port pair on the device adapter (A, B, C, D, a, b, c, d) (uppercase for left device adapter in pair, lowercase for right device adapter in pair).

P

is the logical position of the downstream FCIC in the loop.

Example: 2a1 is the link between device adapter R1-XI4-C6-T1 and R1-G09-C1-T2.
2

device adapter pair 2

a

first port pair on right adapter of device adapter pair (lowercase a)

1

first FCIC on loop of this port pair

the connector plugged into R1-XI4-C6-T1 (2a1) will be beige, while the connector plugged into R1-G09-C1-T2 (2a1) will be green.
Some connectors are for cables that would go to an optional expansion rack. In that case, only one instance of that designator is on the rack.
The black and white label at each end may have a physical location code in addition to the location designator.
- If the cable connects to an I/O enclosure device adapter card connector, the physical location code will be similar to this example: R1-XC1-P1-C1-T1. Refer to I/O enclosure location codes (Models 951, 95E).
- If the cable connects to a storage enclosure Fibre Channel interface card, the physical location code will be similar to this example: R1-G01-P1-C1-T1. Refer to Storage enclosure location codes (Models 951, 95E).
There are two FC-AL cable configurations for Rack-1:
- Standard for Rack Configuration: AE1
- Business class for Rack Configuration: AB1
You determine the configuration by referring to the rack configuration label, located inside the front cover, to the left of the upper PPS power supply on the left front sidewall. Figure 1 shows the rack configuration labels.
Figure 1. Rack-1 configuration labels

Figure 2. Device adapter pair IDs for storage enclosures (Model 951 with business class cabling) (rear view)

Figure 3. FC-AL cable connector color codes - Fibre Channel interface card (FCIC) end

Figure 4. FC-AL cable connector color codes - device adapter card (DA) end

Cabling tables

Table 1 shows a summary of business class FC-AL cabling.

Table 2 shows the unique jumpers used in business class cabling.

Table 3 and Table 4 show details of the business class FC-AL loops originating with Rack 1 device adapters (device adapter pairs 2, and 3, in normal installation order). Note that device adapter pairs 0 and 1 are not used with business class cabling.

Note: Location designators are labeled as link in the following tables.

Table 1. FC-AL cabling summary - Rack 1 device adapters (Model 951 - Rack-1 Configuration: AB1, business class cabling)
From: DA Pair	DA Pair (link)	To: Storage Enclosure	To: Storage Enclosure	To: Storage Enclosure
R1-XI3-P1-C3-T1/T2 R1-XI4-P1-C6-T1/T2	2 (A) 2 (a)	R1-G09	R1-G01	R1-G07
R1-XI3-P1-C3-T3/T4 R1-XI4-P1-C6-T3/T4	2 (B) 2 (b)	R1-G10	R1-G02	R1-G08
R1-XI3-P1-C6-T1/T2 R1-XI4-P1-C3-T1/T2	3 (A) 3 (a)	R1-G05	R1-G03	(none)
R1-XI3-P1-C6-T3/T4 R1-XI4-P1-C3-T3/T4	3 (B) 3 (b)	R1-G06	R1-G04	(none)

Table 2. FC-AL cabling matrix - Rack 1 business class jumpers (Model 951 with Rack-1 Configuration: AB1, business class cabling)
From: FCIC	link	To: FCIC
DA pair 2
R1-G01-P1-C1-T3	2A5	R1-G07-P1-C1-T1
R1-G01-P1-C1-T4	2a5	R1-G07-P1-C1-T2
R1-G01-P1-C2-T3	2A6	R1-G07-P1-C2-T1
R1-G01-P1-C2-T4	2a6	R1-G07-P1-C2-T2
R1-G02-P1-C1-T3	2B5	R1-G08-P1-C1-T1
R1-G02-P1-C1-T4	2b5	R1-G08-P1-C1-T2
R1-G02-P1-C2-T3	2B6	R1-G08-P1-C2-T1
R1-G02-P1-C2-T4	2b6	R1-G08-P1-C2-T2
DA pair 3
R1-G05-P1-C1-T3	3A3	R1-G03-P1-C1-T1
R1-G05-P1-C1-T4	3a3	R1-G03-P1-C1-T2
R1-G05-P1-C2-T3	3A4	R1-G03-P1-C2-T1
R1-G05-P1-C2-T4	3a4	R1-G03-P1-C2-T2
R1-G06-P1-C1-T3	3B3	R1-G04-P1-C1-T1
R1-G06-P1-C1-T4	3b3	R1-G04-P1-C1-T2
R1-G06-P1-C2-T3	3B4	R1-G04-P1-C2-T1
R1-G06-P1-C2-T4	3b4	R1-G04-P1-C2-T2

Table 3. FC-AL cabling matrix - DA Pair 2 (Model 951 - Rack-1 Configuration: AB1, business class cabling)
From: DA	link	To: FCIC	From: FCIC	link	To: FCIC
R1-XI3-P1-C3-T1	2A1	R1-G09-P1-C1-T1	R1-G09-P1-C1-T3	2A3	R1-G01-P1-C1-T1
R1-XI4-P1-C6-T1	2a1	R1-G09-P1-C1-T2	R1-G09-P1-C1-T4	2a3	R1-G01-P1-C1-T2
R1-XI3-P1-C3-T2	2A2	R1-G09-P1-C2-T1	R1-G09-P1-C2-T3	2A4	R1-G01-P1-C2-T1
R1-XI4-P1-C6-T2	2a2	R1-G09-P1-C2-T2	R1-G09-P1-C2-T4	2a4	R1-G01-P1-C2-T2
R1-XI3-P1-C3-T3	2B1	R1-G10-P1-C1-T1	R1-G10-P1-C1-T3	2B3	R1-G02-P1-C1-T1
R1-XI4-P1-C6-T3	2b1	R1-G10-P1-C1-T2	R1-G10-P1-C1-T4	2b3	R1-G02-P1-C1-T2
R1-XI3-P1-C3-T4	2B2	R1-G10-P1-C2-T1	R1-G10-P1-C2-T3	2B4	R1-G02-P1-C2-T1
R1-XI4-P1-C6-T4	2b2	R1-G10-P1-C2-T2	R1-G10-P1-C2-T4	2b4	R1-G02-P1-C2-T2

From: FCIC	link	To: FCIC
R1-G01-P1-C1-T3	2A5	R1-G07-P1-C1-T1
R1-G01-P1-C1-T4	2a5	R1-G07-P1-C1-T2
R1-G01-P1-C2-T3	2A6	R1-G07-P1-C2-T1
R1-G01-P1-C2-T4	2a6	R1-G07-P1-C2-T2
R1-G02-P1-C1-T3	2B5	R1-G08-P1-C1-T1
R1-G02-P1-C1-T4	2b5	R1-G08-P1-C1-T2
R1-G02-P1-C2-T3	2B6	R1-G08-P1-C2-T1
R1-G02-P1-C2-T4	2b6	R1-G08-P1-C2-T2

Table 4. FC-AL cabling matrix - DA Pair 3 (Model 951 - Rack-1 Configuration: AB1, business class cabling)
From: DA	link	To: FCIC	From: FCIC	link	To: FCIC
R1-XI3-P1-C6-T1	3A1	R1-G05-P1-C1-T1	R1-G05-P1-C1-T3	3A3	R1-G03-P1-C1-T1
R1-XI4-P1-C3-T1	3a1	R1-G05-P1-C1-T2	R1-G05-P1-C1-T4	3a3	R1-G03-P1-C1-T2
R1-XI3-P1-C6-T2	3A2	R1-G05-P1-C2-T1	R1-G05-P1-C2-T3	3A4	R1-G03-P1-C2-T1
R1-XI4-P1-C3-T2	3a2	R1-G05-P1-C2-T2	R1-G05-P1-C2-T4	3a4	R1-G03-P1-C2-T2
R1-XI3-P1-C6-T3	3B1	R1-G06-P1-C1-T1	R1-G06-P1-C1-T3	3B3	R1-G04-P1-C1-T1
R1-XI4-P1-C3-T3	3b1	R1-G06-P1-C1-T2	R1-G06-P1-C1-T4	3b3	R1-G04-P1-C1-T2
R1-XI3-P1-C6-T4	3B2	R1-G06-P1-C2-T1	R1-G06-P1-C2-T3	3B4	R1-G04-P1-C2-T1
R1-XI4-P1-C3-T4	3b2	R1-G06-P1-C2-T2	R1-G06-P1-C2-T4	3b4	R1-G04-P1-C2-T2