Flash PCIe and SAS cables – Model 984 all-flash

These tables show the point-to-point connections for Flash PCIe / SAS cables on a Model 984 all-flash.
Note:
  • 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.
Figure 1. Point-to-point cabling diagram for storage enclosure Flash PCIe / SAS cables (Model 984 all-flash, rear view, rack 1)
Point-to-point cabling diagram for storage enclosure Flash PCIe / SAS cables (Model 984 all-flash, rear view, rack 1)

Flash PCIe cables

  1. Flash PCIe cables and connectors are identified with a colored band matching the DA pair and two different color codes:
    • 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 1.
    • The connector is color-coded to help prevent cross-cabling at the microbay adapter card or I/O enclosure PCIe and PCN card end. Connectors on cables attaching to Rx-Mxx-C1-T7 have white labels with black text, and connectors on cables attaching to Rx-Mxx-C2-T7 have black labels with white text. An example of this showing both cables attaching to a microbay adapter card pair is shown in Figure 2. This alternating color scheme is the same for all Flash PCIe cables, and is independent of the DA pair color code. Figure 3 and Figure 4 show the Flash PCIe cable connection ends.
  2. The black and white label at each end has a physical location code showing the "FROM" and "TO" end.
Figure 2. Flash PCIe cable connector example. Both cables are shown and actual values might not match this machine model.
Flash PCIe cable connector example; both cables are shown and actual values might not match this machine model.
Figure 3. Flash PCIe cable connector - microbay adapter card end (C1-T7 / C2-T7)
Flash PCIe cable connector - Microbay adapter card end (C1-T7 / C2-T7)
Figure 4. Flash PCIe cable connector - I/O enclosure PCIe and PCN card end (-C7-T5 / -C7-T6)
I/O enclosure locations (rear) (models 98x)

Flash SAS cables

  1. SAS 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 1.
    2. The connector itself is color coded to help prevent cross-cabling at the SAS expander card or device adapter card (DA) end. The connectors always appear in the following order:
      white (T1), green (T2), black (T3), and blue (T4)
      as shown in Figure 6 and Figure 7. This color code is specific to each SAS expander card 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, 16A1). Both ends of the cable have the same location designator and DA pair color code. However, the connector at each end of the same cable usually does NOT have the same color code.
    4. The following alternating color scheme is the same for all Flash SAS cables, and is independent of the DA pair color code:
      • Connectors on cables that attach to Rx-Mxx-C1-Tx have white labels with black text.
      • Connectors on cables that attach to Rx-Mxx-C2-Tx have black labels with white text.
      • Connectors on cables that attach to Rx-Mxx-C1-Tx have white labels with black text.
      • Connectors on cables that attach to Rx-Mxx-C2-Tx have black labels with white text.

    An example of this showing both ends of two SAS cables to an enclosure is shown in Figure 5.

  2. Location designators are in the form CTP, where:
    C
    Is the device adapter pair (16-23).
    T
    Is the port pair on the device adapter (A, B, a, b) (uppercase for left device adapter in pair, lowercase for right device adapter in pair).
    P
    Is the logical position of the downstream SAS expander card.
    Example: 16a1 is the link between device adapter R1-M02-C2-T1 and R1-F01-P1-C1-T2.
    16
    Device adapter pair 16
    a
    First port pair on right adapter of device adapter pair (lowercase a)
    1
    First SAS expander card
    The colored connector band plugged into R1-M02-C2-T1 (16a1) is white, while the colored connector band plugged into R1-F01-P1-C1-T2 (16a1) is green.
  3. The black and white label at each end may have a physical location code in addition to the location designator.
Figure 5. Flash SAS cable connector example. Two cables shown. Actual values might not match this machine model.
Flash SAS cable connector example. Two cables shown; actual values might not match this machine model.
Figure 6. Flash SAS cable connector color codes - SAS expander card end
Flash SAS cable connector color codes - SAS expander card end
Figure 7. Flash SAS cable connector color codes - microbay adapter end
Flash SAS cable connector color codes - microbay adapter end

Flash PCIe and SAS cabling tables

Table 1 shows a summary of Flash PCIe / SAS cabling for model 984 all-flash.

Table 2 through Table 5 show details of the Flash PCIe / SAS cabling with Rack 1 high-performance flash enclosures (device adapter pair 16, 17, 18, and 19, in normal installation order).
Note: Location designators are labeled as link in the following tables.
Table 1. Flash PCIe cabling summary – Rack 1 device adapters (Model 984 all-flash)
From
DA pair		 DA
Pair (link)		 To
Microbay		 To
Storage Enclosure		 To
Storage Enclosure
R1-XI3-P1-C7-T5
R1-XI4-P1-C7-T6		 18 (A)
18 (B)		 R1-M04 R1-F03 R1-F04
R1-XI4-P1-C7-T5
R1-XI3-P1-C7-T6		 19 (A)
19 (B)		 R1-M02 R1-F01 R1-F02
R1-XI1-P1-C7-T5
R1-XI2-P1-C7-T6		 16 (A)
16 (B)		 R1-M08 R1-F07 R1-F08
R1-XI2-P1-C7-T5
R1-XI1-P1-C7-T6		 17 (A)
17 (B)		 R1-M06 R1-F05 R1-F06
Table 2. Flash PCIe cabling matrix – DA Pair 18 (Model 984 all-flash)
From
DA		 link To
Microbay		 From
Microbay		 link To
Flash enclosure
R1-XI3-P1-C7-T5 18A R1-M04-C1-T7 R1-M04-C1-T1 18A1 R1-F03-P1-C1-T1
R1-M04-C2-T1 18a1 R1-F03-P1-C1-T2
R1-M04-C1-T2 18A2 R1-F03-P1-C2-T1
R1-M04-C2-T2 18a2 R1-F03-P1-C2-T2
R1-XI4-P1-C7-T6 18B R1-M04-C2-T7 R1-M04-C1-T3 18B1 R1-F04-P1-C1-T1
R1-M04-C2-T3 18b1 R1-F04-P1-C1-T2
R1-M04-C1-T4 18B2 R1-F04-P1-C2-T1
R1-M04-C2-T4 18b2 R1-F04-P1-C2-T2
Table 3. Flash PCIe cabling matrix – DA Pair 19 (Model 984 all-flash)
From
DA		 link To
Microbay		   From
Microbay		 link To
Flash enclosure
R1-XI4-P1-C7-T5 19A R1-M02-C1-T7   R1-M02-C1-T1 19A1 R1-F01-P1-C1-T1
  R1-M02-C2-T1 19a1 R1-F01-P1-C1-T2
  R1-M02-C1-T2 19A2 R1-F01-P1-C2-T1
  R1-M02-C2-T2 19a2 R1-F01-P1-C2-T2
R1-XI3-P1-C7-T6 19B R1-M02-C2-T7   R1-M02-C1-T3 19B1 R1-F02-P1-C1-T1
  R1-M02-C2-T3 19b1 R1-F02-P1-C1-T2
  R1-M02-C1-T4 19B2 R1-F02-P1-C2-T1
  R1-M02-C2-T4 19b2 R1-F02-P1-C2-T2
Table 4. Flash PCIe cabling matrix – DA Pair 16 (Model 984 all-flash)
From
DA		 link To
Microbay		   From
Microbay		 link To
Flash enclosure
R1-XI1-P1-C7-T5 16A R1-M08-C1-T7   R1-M08-C1-T1 16A1 R1-F07-P1-C1-T1
  R1-M08-C2-T1 16a1 R1-F07-P1-C1-T2
  R1-M08-C1-T2 16A2 R1-F07-P1-C2-T1
  R1-M08-C2-T2 16a2 R1-F07-P1-C2-T2
R1-XI2-P1-C7-T6 16B R1-M08-C2-T7   R1-M08-C1-T3 16B1 R1-F08-P1-C1-T1
  R1-M08-C2-T3 16b1 R1-F08-P1-C1-T2
  R1-M08-C1-T4 16B2 R1-F08-P1-C2-T1
  R1-M08-C2-T4 16b2 R1-F08-P1-C2-T2
Table 5. Flash PCIe cabling matrix – DA Pair 17 (Model 984 all-flash)
From
DA		 link To
Microbay		   From
Microbay		 link To
Flash enclosure
R1-XI2-P1-C7-T5 17A R1-M06-C1-T7   R1-M06-C1-T1 17A1 R1-F05-P1-C1-T1
  R1-M06-C2-T1 17a1 R1-F05-P1-C1-T2
  R1-M06-C1-T2 17A2 R1-F05-P1-C2-T1
  R1-M06-C2-T2 17a2 R1-F05-P1-C2-T2
R1-XI1-P1-C7-T6 17B R1-M06-C2-T7   R1-M06-C1-T3 17B1 R1-F06-P1-C1-T1
  R1-M06-C2-T3 17b1 R1-F06-P1-C1-T2
  R1-M06-C1-T4 17B2 R1-F06-P1-C2-T1
  R1-M06-C2-T4 17b2 R1-F06-P1-C2-T2