Adaptec SC4100 User Guide - Page 57
Fibre Channel ID Assignment, Disk Drive Loop Identifier Map
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Fibre Channel Storage Enclosures (FC4100) Fibre Channel ID Assignment Each FC drive slot has a unique ID assigned to it. The IDs are assigned by a combination of slot number and enclosure ID. The slot numbers are pre-assigned, as shown in Figure 1-2 on page 1-5. You set the enclosure ID to any number between 0 and 9, using the ID switch on the ES module, shown in Figure 1-1 on page 1-4. When you power-on the enclosure, the ES module and LIO module read the ID switch setting and set the enclosure ID. If you change the enclosure ID, you must power cycle the enclosure before it will read the change. Disk Drive Loop Identifier Map Each disk drive slot is assigned a loop identifier based on the enclosure ID, as shown in Table 6-3. If you change the enclosure ID, you must power cycle the enclosure before it will read the change and update the disk drive loop identifier. Table 6-3 Loop Identifier Map Enclosure ID SEL_ID Dec Hex 1 2 3 4 5 6 7 8 9 10 11 12 0 0 13 12 11 10 9 8 7 6 5 4 3 2 1 1 25 24 23 22 21 20 19 18 17 16 15 14 2 2 37 36 35 34 33 32 31 30 29 28 27 26 3 3 49 48 47 46 45 44 43 42 41 40 39 38 4 4 61 60 59 58 57 56 55 54 53 52 51 50 5 5 73 72 71 70 69 68 67 66 65 64 63 62 6 6 85 84 83 82 81 80 79 78 77 76 75 74 7 7 97 96 95 94 93 92 91 90 89 88 87 86 8 8 109 108 107 106 105 104 103 102 101 100 99 98 9 9 121 120 119 118 117 116 115 114 113 112 111 110 6-5