Hp NonStop G-Series Manuale Utente Scaricare il pdf (Pagina 17)

ServerNet Nomadic Disk User’s Guide—425485-001

1-1

ServerNet Nomadic Disk Overview

Remote Disk Drive Mirroring 1-2

Physically Switching the Disk Drives

1-2

Data Paths and Disk Drive Ownership Before a Switchover

1-3

Data Paths and Disk Drive Ownership After a Switchover

1-4

Logically Switching a Database

1-5

Supported Database Products

1-5

Unsupported Database Products

1-5

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 145 146

ServerNet Nomadic Disk 1
User’s Guide 1
Document History 2
Index Examples Figures Tables 3
4. Switch Modules 4
5. Switchovers 4
Contents 5
A. Part Numbers 6
Table 6-1 7
Summary of SWCI Commands 6-8 7
Table A-1 7
What’s New in This Guide 10
New and Changed Information 10
About This Guide 11
Where to Get More Information 12
Your Comments Invited 12
Notation Conventions 13
Remote Disk Drive Mirroring 18
Switchover 19
VST101.vsd 20
Supported Database Products 21
Unsupported Database Products 22
Nomadic Disk Software 24
Nomadic Disk Hardware 25
Disk Manager 29
Nomadic Disk Manager Files 30
> VOLUME $SYSTEM.NOMADIC 31
> OBEY CREATOR 31
CONFIG^FILE 33
Configuration File Examples 34
ADD DEFINE Statement 38
ADD SEGMENT Statement 39
PROCESS Statement 40
PROCESS FUP CPU 3, PRI 151 41
SET PATH Statement 42
SET VOL Statement 43
Switch Modules 45
Switch Controller Card 47
SCC Key Switch 48
SCC Temperature Sensors 48
SCC LEDs 49
Alarm Port 50
Switch Card 51
Switch Card Toggle Switches 52
Switch Card LEDs 53
Switchovers 55
Preparing for a Switchover 56
Switchover Examples 57
Position 58
Planned Switchovers 59
On Backup Node \BCK 60
Unplanned Switchovers 61
Switchback 62
On the Primary Node \PRI 63
> SWCI $SWITCH1.#PRI 66
SWCI $SWITCH1.#PRI> STATUS 66
Communications 67
Switch Module Device Name 69
Starting SWCI 70
Stopping SWCI 71
SWCI Commands 72
ALARM Command 73
Consideration 73
LOCK Command 75
LOG Command 76
OBEY Command 77
SELFTEST Command 78
STATUS Commands 79
SWITCH Command 87
UNLOCK Command 89
Considerations 89
SWCI Messages 90
Startup message not found 92
Environmental Alert Messages 114
Considerations 116
Nomadic Disk Manager Commands 117
Command Description Page 118
ASSUME Command 119
Examples 119
DOWN Command 120
EXIT Command 121
GIVE Command 122
HELP Command 124
HISTORY Command 125
LISTDEV Command 126
LISTOPENS Command 127
OUT Command 128
RESET Command 129
SEGMENTS Command 130
SQL Command 131
STATUS Command 131
TAKE Command 133
TMF Command 135
UP Command 135
VOLUMES Command 136
Part Numbers 137
Mirroring 139

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