Digital Equipment Corporation RAID Array 3000 storage subsystem Guida Utente Pagina 3
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EK–SMCPO–UG. A01 iii
Contents
Revision Record
..............................................................................................ix
About This Guide
...........................................................................................xi
1 Product Overview
1.1 Product Description...............................................................................1–1
1.2 Pedestal Features...................................................................................1–4
1.3 Pedestal Cabinet....................................................................................1–4
1.4 Pedestal Components ............................................................................1–6
1.4.1 StorageWorks Building Blocks (SBBs)..............................................1–6
1.4.2 RAID Array Controller......................................................................1–6
1.4.3
Pedestal Power Supplies ....................................................................1–7
1.4.4
Uninterruptable Power Supply ...........................................................1–7
1.4.5
Environmental Monitor Unit (EMU)..................................................1–8
1.4.6
UltraSCSI Bus ...................................................................................1–9
1.5 Specifications......................................................................................1–12
2 RAID Array Controller
2.1 Controller Overview..............................................................................2–1
2.2 Controller Features................................................................................2–2
2.3 Controller Reset and LED Indicators.....................................................2–6
2.4 Flexible RAID Set Configuration ..........................................................2–7
2.5 Performance Enhancements ..................................................................2–8
2.5.1 Custom Components..........................................................................2–8
2.5.2 Efficient Write and Read Algorithms.................................................2–8
2.6 RAID Levels Supported ......................................................................2–10
2.6.1 RAID 0............................................................................................2–11
2.6.2 RAID 1............................................................................................2–13
2.6.3 RAID 0+1........................................................................................2–13
2.6.4 RAID 4............................................................................................2–15
- RAID Array 3000 Storage 1
- Subsystem 1
- Contents 3
- 3 Maintenance 4
- 4 Expansion Pedestal Option 5
- 5 Second Controller Option 5
- Figures (continued) 6
- EK–SMCPO–UG. A01 vii 7
- Revision Record 9
- About This Guide 11
- Associated Documents 12
- Conventions 12
- Conventions ( 13
- Support and Services 13
- Who to contact in Europe 14
- Product Overview 15
- 1–2 EK–SMCPO–UG. A01 16
- Chapter 1. Product Overview 17
- 1.2 Pedestal Features 18
- 1.3 Pedestal Cabinet 18
- 1.4 Pedestal Components 20
- 1.4.2 RAID Array Controller 20
- EK–SMCPO–UG. A01 1–7 21
- 1–8 EK–SMCPO–UG. A01 22
- 1.4.6 UltraSCSI Buses 23
- 1–10 EK–SMCPO–UG. A01 24
- 1.5 Specifications 26
- RAID Array Controller 29
- 2.2 Controller Features 30
- EK–SMCPO–UG. A01 2–3 31
- EK–SMCPO–UG. A01 2–5 33
- 2–6 EK–SMCPO–UG. A01 34
- EK–SMCPO–UG. A01 2–7 35
- 2.5 Performance Enhancements 36
- 2.5.1 Custom Components 36
- EK–SMCPO–UG. A01 2–9 37
- 2.6 RAID Levels Supported 38
- 2.6.1 RAID 0 39
- 2–12 EK–SMCPO–UG. A01 40
- Figure 2–4 RAID 0 Write 40
- 2.6.2 RAID 1 41
- 2.6.3 RAID 0+1 41
- 2–14 EK–SMCPO–UG. A01 42
- Table 2–5 RAID 0+1 Example 42
- 2.6.4 RAID 4 43
- 2.6.5 RAID 5 44
- EK–SMCPO–UG. A01 2–17 45
- 2.6.6 JBOD 46
- 2.7 System Parameters 46
- EK–SMCPO–UG. A01 2–19 47
- Table 2–6 System Parameters 47
- Parameter Description 47
- 2.8 Redundant Operation 48
- 2.8.1 Initialization 48
- 2.8.2 Message Passing 48
- 2.8.3 Failover 48
- 2.9 Environmental 49
- 2.9.2 Voltage Monitoring 50
- EK–SMCPO–UG. A01 2–23 51
- 2.9.3 Temperature Monitoring 52
- Maintenance 53
- 3.3 SBB Status LEDs 54
- 3.4 Controller LEDs 55
- 3.5 EMU Error Reporting 56
- 3.5.1 EMU Error Conditions 56
- Chapter 3. Maintenance 57
- EK–SMCPO–UG. A01 3–5 57
- 3.6.2 Replacing an SBB 58
- EK–SMCPO–UG. A01 3–7 59
- Figure 3–4 Replacing an SBB 59
- 3–8 EK–SMCPO–UG. A01 60
- EK–SMCPO–UG. A01 3–9 61
- 3–10 EK–SMCPO–UG. A01 62
- EK–SMCPO–UG. A01 3–11 63
- 3.6.14 Replacing the UPS 64
- EK–SMCPO–UG. A01 3–13 65
- 3–14 EK–SMCPO–UG. A01 66
- EK–SMCPO–UG. A01 3–15 67
- 3–16 EK–SMCPO–UG. A01 68
- EK–SMCPO–UG. A01 3–17 69
- 3–18 EK–SMCPO–UG. A01 70
- EK–SMCPO–UG. A01 3–19 71
- 3–20 EK–SMCPO–UG. A01 72
- Expansion Pedestal Option 73
- 4–2 EK–SMCPO–UG. A01 74
- EXPANSION PEDESTAL 75
- 4–4 EK–SMCPO–UG. A01 76
- EK–SMCPO–UG. A01 4–5 77
- 4–6 EK–SMCPO–UG. A01 78
- J16 (see Figure 4–7) 79
- 4–8 EK–SMCPO–UG. A01 80
- Remove Knockout 81
- 4–10 EK–SMCPO–UG. A01 82
- EK–SMCPO–UG. A01 4–11 83
- 4–12 EK–SMCPO–UG. A01 84
- Figure 4–16 85
- 4–14 EK–SMCPO–UG. A01 86
- Second Controller Option 87
- 5.2 Installation Procedure 88
- EK–SMCPO–UG. A01 5–3 89
- 5–4 EK–SMCPO–UG. A01 90
- EK–SMCPO–UG. A01 5–5 91
- Reader’s Comments 93
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