HP 4100 Enterprise Virtual Array Manual de usuario Pagina 158
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Risks
• Single path failure may result in data loss or disk corruption.
NOTE: For additional risks, see Table 63 (page 161).
Limitations
• HP P6000 Continuous Access is not supported with single path configurations.
• Single path HBA server is not part of a cluster.
• Booting from the SAN is supported on single path HBA servers.
Figure 59 VMware configuration
5 SAN switch 11 Network interconnection
6 SAN switch 22 Single HBA server
7 Controller A3 Dual HBA server
8 Controller B4 Management server
Failure scenarios
HP-UX
Table 57 HP-UX failure scenarios
Failure effectFault stimulus
Extremely critical event on UNIX. Can cause loss of system disk.Server failure (host power-cycled)
Short term: Data transfer stops. Possible I/O errors.
Long term: Job hangs, cannot umount disk, fsck failed, disk corrupted,
need mkfs disk.
Switch failure (SAN switch disabled)
Short term: Data transfer stops. Possible I/O errors.
Long term: Job hangs, cannot umount disk, fsck failed, disk corrupted,
need mkfs disk.
Controller failure
Short term: Data transfer stops. Possible I/O errors.
Long term: Job hangs, cannot umount disk, fsck failed, disk corrupted,
need mkfs disk.
Controller restart
158 Single Path Implementation
- HP EVA 4000/6000/8000 and EVA 1
- 4100/6100/8100 User Guide 1
- Contents 3
- 4 Contents 4
- Contents 5 5
- 6 Contents 6
- Contents 7 7
- 8 Contents 8
- Contents 9 9
- 10 Contents 10
- Direct connect 13
- Fabric connect iSCSI 14
- Direct connect iSCSI 14
- Gathering information 15
- Entering the WWN 16
- Entering the WWN checksum 17
- 1. controllers 19
- 2. loop switches 19
- 3. disk enclosures 19
- Enclosure layout 20
- I/O modules 21
- I/O module status indicators 22
- Copper Fibre Channel cables 23
- Fibre Channel disk drives 23
- Disk drive status indicators 24
- Disk drive status displays 24
- Power supplies and blowers 25
- Drive enclosure EMU 26
- Controls and displays 27
- EMU functions 27
- EMU monitoring functions 28
- EMU displays 28
- EMU indicator displays 29
- Audible alarm operations 30
- Enabling the audible alarm 31
- Disabling the audible alarm 32
- Enclosure number feature 32
- Error Condition Reporting 34
- Reporting group feature 37
- Fibre Channel loop switches 38
- 30-10010-02 loop switch 39
- Power-on self test (POST) 40
- HSV controllers 41
- High availability features 43
- Operator control panel 43
- Status indicators 44
- Navigation buttons 45
- Alphanumeric display 45
- Displaying the OCP menu tree 45
- Displaying system information 47
- Shutting down the system 47
- Shutting the controller down 48
- Restarting the system 48
- Uninitializing the system 48
- Password options 49
- Changing a password 49
- Clearing a password 49
- Power supplies 50
- Cache battery 51
- HSV controller cabling 51
- Rack configurations 52
- Power distribution 52
- Racks 53 53
- 2. PDU 21. PDU 1 54
- 5. Mounting hardware 54
- Rack AC power distribution 55
- Moving and stabilizing a rack 56
- 2. Rear door1. Front door 57
- Racks 57 57
- 2. Leveler foot1. Hex nut 58
- Best practices 59
- Starting the storage system 65
- Creating disk groups 68
- Adding a disk drive 69
- Checking status indicators 70
- Handling fiber optic cables 71
- Overview 72
- Clustering 72
- Multipathing 72
- Adding hosts 73
- Scanning the bus 74
- Accessing IBM AIX utilities 75
- Driver failover mode 77
- Installing a Qlogic driver 77
- Upgrading Linux components 78
- Using the source RPM 79
- Channel FCA firmware 80
- Console LUN ID and OS unit ID 80
- Adding OpenVMS hosts 81
- Oracle Solaris 85 85
- Fabric setup and zoning 87
- 50001fe1002709e9,5 90
- Oracle Solaris 91 91
- SCSI Device Information: 92
- Configuring an ESX server 93
- Specifying DiskMaxLUN 94
- Verifying connectivity 94
- VMware 95 95
- 5 Customer replaceable units 96
- Replaceable parts 97
- Returning the defective part 100
- 6 Support and other resources 101
- Rack stability 102
- Customer self repair 103
- Regulatory notices 104
- Laser device 105
- European union notice 106
- Notice for France 106
- WEEE Recycling Notices 106
- Dutch notice 107
- Czechoslovakian notice 107
- Estonian notice 107
- Finnish notice 107
- French notice 108
- German notice 108
- Greek notice 108
- Hungarian notice 109
- Italian notice 109
- Latvian notice 109
- Lithuanian notice 109
- Polish notice 109
- Portuguese notice 110
- Slovakian notice 110
- Slovenian notice 110
- Spanish notice 110
- Germany noise declaration 111
- Japanese notice 111
- Taiwanese notice 111
- Japanese power cord notice 111
- Storage system specifications 112
- Power specifications 113
- Condition report format 117
- Correcting errors 117
- Drive conditions 118
- Correcting errors 119 119
- Power supply conditions 120
- Blower conditions 121
- Temperature conditions 123
- EMU conditions 125
- Correcting errors 127 127
- Transceiver conditions 128
- Correcting errors 129 129
- Resetting the EMU 130
- Backplane conditions 132
- I/O Module conditions 133
- Host conditions 134
- C Controller fault management 135
- Fault management displays 136
- Rack specifications 138
- Airflow and Recirculation 139
- Configuration Standards 139
- Power requirements 140
- UPS Selection 141
- Table 52 EVA 8x00 UPS loading 142
- Table 53 EVA 6x00 UPS loading 142
- Environmental specifications 143
- E Single Path Implementation 145
- Installation requirements 146
- Recommended mitigations 146
- Supported configurations 146
- HP-UX configuration 148
- Requirements 149
- HBA configuration 149
- Limitations 149
- Oracle Solaris configuration 151
- Tru64 UNIX configuration 152
- OpenVMS configuration 153
- Linux (32-bit) configuration 154
- Linux (64-bit) configuration 155
- IBM AIX configuration 156
- VMware configuration 157
- Failure scenarios 158
- Windows Server 159
- Oracle Solaris 159
- OpenVMS and Tru64 UNIX 160
- Glossary 163
- 164 Glossary 164
- 166 Glossary 166
- 168 Glossary 168
- 170 Glossary 170
- 172 Glossary 172
- 174 Glossary 174
- 176 Index 176
- 178 Index 178
- 180 Index 180
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