Compaq 3000 Uživatelský manuál Strana 37
- Strana / 103
- Tabulka s obsahem
- KNIHY
Hodnocené. / 5. Na základě hodnocení zákazníků
RAID Array 3000 Controller Shelf
2–4 EK–SMCPQ–UG. C01
From the storage shelf’s perspective, the controller receives the I/O requests from
the host and directs them to the devices. Since the controller processes all the I/O
requests, it eliminates the host-based processing that is typically associated with
reading and writing data to multiple storage devices.
The controller does much more than simply manage I/O requests: it provides the
ability to combine several ordinary disk drives into a single, high-performance
storage unit called a storageset. Storagesets are implementations of RAID tech-
nology, also known as a “Redundant Array of Independent Disks”. Every stor-
ageset shares one important feature: whether it uses two disk drives or 12, each
storageset looks like a single storage unit to the host.
You create storage units by combining disk drives into storagesets such as stripe-
sets, RAIDsets, and mirrorsets, or by presenting them to the host as single-disk
units (see Figure 2–3).
Figure 2–3 Logical Units Created from Storagesets, Partitions, and Disk
Drives
Logical
Unit
Logical
Unit
Logical
Unit
L
o
g
ic
a
l
Unit
Mirrorset
Partitioned
Storageset
Stripset
Partitioned
Disk Drive
Striped
Mirrorset
Raidset
Disk Drives
- Hardware User’s Guide 1
- Contents 4
- 4 Second Controller Option 5
- Figures (continued) 7
- Revision Record 8
- About This Guide 9
- Associated Documents 10
- Conventions 11
- Support and Services 12
- Who to contact in Europe 12
- Product Overview 13
- 1–2 EK–SMCPQ–UG. C01 14
- Chapter 1. Product Overview 15
- EK–SMCPQ–UG. C01 1–3 15
- 1.2 Shelf Features 17
- 1–6 EK–SMCPQ–UG. C01 18
- 1.5 Shelf Major Components 19
- 1.5.1 RAID Array Controller 19
- 1.5.2 Device I/O Module 20
- EK–SMCPQ–UG. C01 1–9 21
- Figure 1–5 Device I/O Module 21
- 1.5.3 Host I/O Module 22
- Host Out 23
- 1.5.4 Shelf Cooling 24
- EK–SMCPQ–UG. C01 1–13 25
- Figure 1–8 Power Supply 25
- 1–14 EK–SMCPQ–UG. C01 26
- SHR-1316 27
- 1–16 EK–SMCPQ–UG. C01 28
- SHR-1318 29
- 1–18 EK–SMCPQ–UG. C01 30
- 1.8 Specifications 31
- RAID Array Controller 34
- 2–2 EK–SMCPQ–UG. C01 35
- 2.2 Controller Features 36
- Disk Drives 37
- EK–SMCPQ–UG. C01 2–5 38
- 2–6 EK–SMCPQ–UG. C01 39
- 2.5 Performance Enhancements 40
- 2.5.1 Custom Components 40
- 2.6 RAID Levels Supported 41
- 2.6.1 RAID 0 42
- 2–10 EK–SMCPQ–UG. C01 43
- Figure 2–5 RAID 0 Write 43
- 2.6.2 RAID 1 44
- 2.6.3 RAID 0+1 44
- 2.6.4 RAID 4 46
- 2.6.5 RAID 5 47
- EK–SMCPQ–UG. C01 2–15 48
- 2.6.6 JBOD 49
- 2.7 System Parameters 49
- 2.8 Redundant Operation 49
- 2.8.1 Initialization 50
- 2.8.2 Message Passing 50
- 2.8.3 Failover 50
- 2.9 Environmental 51
- Installation and Maintenance 52
- 3–2 EK–SMCPQ–UG. C01 53
- EK–SMCPQ–UG. C01 3–7 58
- 3–8 EK–SMCPQ–UG. C01 59
- 3.2.2 Installing UPS Brackets 60
- 3–10 EK–SMCPQ–UG. C01 61
- EK–SMCPQ–UG. C01 3–11 62
- 3–12 EK–SMCPQ–UG. C01 63
- EK–SMCPQ–UG. C01 3–13 64
- 3–14 EK–SMCPQ–UG. C01 65
- (See Figures 3–9 and 3–10) 66
- DEVICE EXPANSION SHELF # 1 67
- CONTROLLER SHELF 67
- EK–SMCPQ–UG. C01 3–17 68
- (See Figures 3–10 and 3–11) 69
- EK–SMCPQ–UG. C01 3–19 70
- 3–20 EK–SMCPQ–UG. C01 71
- (See Figures 3–10 and 3–12) 72
- 3–22 EK–SMCPQ–UG. C01 73
- EK–SMCPQ–UG. C01 3–23 74
- (See Figures 3–10 and 3–13) 75
- EK–SMCPQ–UG. C01 3–25 76
- 3–26 EK–SMCPQ–UG. C01 77
- EK–SMCPQ–UG. C01 3–27 78
- 3.5 Controller LEDs 79
- EK–SMCPQ–UG. C01 3–29 80
- 3–30 EK–SMCPQ–UG. C01 81
- EK–SMCPQ–UG. C01 3–31 82
- 3–32 EK–SMCPQ–UG. C01 83
- 3.6.4 Replacing the UPS 84
- 3.6.5 Replacing a Blower 84
- 3–34 EK–SMCPQ–UG. C01 85
- EK–SMCPQ–UG. C01 3–35 86
- 3–36 EK–SMCPQ–UG. C01 87
- EK–SMCPQ–UG. C01 3–37 88
- 3–38 EK–SMCPQ–UG. C01 89
- Second Controller Option 90
- 4.2 Installing the Upgrade 91
- EK–SMCPQ–UG. C01 4-3 92
- 4.2.2 Update Firmware 93
- EK–SMCPQ–UG. C01 4-5 94
- 4.2.3 Shutdown RA3000 95
- EK–SMCPQ–UG. C01 4-7 96
- EK–SMCPQ–UG. C014-8 97
- 4.2.6 Restore Configuration 98
- EK–SMCPQ–UG. C014-10 99
- EK–SMCPQ–UG. C01 4-11 100
- EK–SMCPQ–UG. C014-12 101
- EK–SMCPQ–UG. C01 4-13 102
- EK–SMCPQ–UG. C014-14 103
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