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Table 21 Reading of command device setting and group information (continued)
Security to be setReading of device
group or copy
group information
Command device settingHORCM_LDEVG
Group
information
acquisition
User
authentication
Security
CMD securityRead
1
OFFONON
User authentication
required
CMD securityDo not readON
User authentication
required
Only
HORCM_DEV
allowed
-Read
2
---Defined
Notes:
1. Read the entire group information in the storage system.
2. Read the information of device group and copy group from the contents of the configuration definition file regardless
the setting of command device.
Define device group
A device group is created by specifying a device name and a device group name. Once a device
group is created, the device group name, the LDEV number, and the information if there is copy
group definition or not are stored in the storage system as configuration information.
The maximum number of device groups is 1,024 in one storage system. The maximum 65,279
LDEVs can be placed under the device group. And one LDEV can be placed in multiple device
groups.
Notes when specifying a device name
• Multiple device names can be defined in one LDEV (Max: 1,024 names).
• The length of a device name must be up to 32 characters.
• In the device group that does not become an element of copy a group, the same device name
can be used in the same device group.
• In the device group that becomes an element of a copy group, a device group name must be
unique in the device group. It is because a pair is created between LDEVs that have same
device names in respective primary and secondary volumes at the group operation of a
replication series command.
Notes when specifying a device group name
• The length of a device group name must be up to 32 characters.
• A device group name must be unique within the storage system. The device group name
cannot be duplicated in one storage system.
• When a device group name is specified by the raidcom command option and an LDEV to
operate is specified by the device name, all devices that have the same name with the
beginning of the specified name will be operated.
The contents of the following operations that can be executed for a device group are expressed
hereafter with its use cases.
1. Device group creation
LDEV grouping function 75
- Abstract 1
- DescriptionDateEdition 2
- Contents 3
- 4 Contents 4
- Contents 5 5
- 6 Contents 6
- Contents 7 7
- 8 Contents 8
- 1 Overview 9
- Provisioning function 10
- Command execution modes 11
- Precheck function 11
- User authentication 13
- 14 Overview 14
- Data protection 15
- ◦ A command server 16
- Command device 16
- Command device guarding 17
- # horcctl -DI 18
- AI = 14 TI = 0 CI = 1 18
- Command competition 20
- Command flow 20
- HORCM operational environment 21
- Configuration definition file 25
- HORCM_MON 27
- HORCM_CMD 29
- \\.\CMD-30095-250-CL1-A 29
- Business Copy 37
- RAID Manager software files 41
- RAID Manager log files 45
- RAID Manager trace files 47
- Command logging for audit 47
- Logging raidcom command 49
- /var/log/raidcom.err 50
- User-created files 52
- User environment variable 52
- Hardware requirements 54
- I/O Traffic Control 54
- Security setting 54
- Controlling User Role 56
- Controlling user resources 57
- Target resources 58
- Resource lock function 63
- Context check 65
- [-clpr <clpr#>] 66
- Configuration check 70
- LDEV grouping function 72
- LDEV grouping function 73 73
- Define device group 75
- 4. Device group deletion 76
- Device group creation 77
- LDEV addition to device group 77
- Device group deletion 79
- Copy group function 80
- When creating a copy group 81
- When deleting a copy group 81
- Copy group creation 82
- LDEV addition to a copy group 82
- LDEV deletion from copy group 83
- Copy group deletion 84
- LDEV grouping function 85 85
- LDEV grouping function 87 87
- Journal Z (continued) 90
- HORCM_VCMD 94
- 4 Starting up RAID Manager 100
- One instance 101
- Two instances 101
- ◦ for starting [HORCM0]: 104
- About provisioning operations 106
- Asynchronous commands 107
- LDEV nickname function 108
- Operation method 114
- Resource group operations 116
- Execution example 117
- Internal volume operations 118
- Script examples 121
- Operational flow 127
- External volume operations 132
- Script Examples 133
- Cache Partition operations 135
- Displaying CLPR information 136
- Features of paired volumes 143
- Synchronous 144
- Business Copy operations 145
- Business Copy cascading pairs 146
- Business Copy operations 147 147
- The Takeover-switch function 150
- Swap-takeover function 151
- SVOL-takeover function 152
- PVOL-takeover function 153
- Journal operations 155
- # pairsplit -g oradb 159
- # pairdisplay -g oradb -fc 159
- Access Journal volumes 161
- Setting the fence level 166
- Snapshot operations 167
- Creating a Snapshot pair 168
- Snapshot pair status 168
- Controlling Auto LUN 169
- Specifications for Auto LUN 170
- Commands to control Auto LUN 171
- Restrictions for Auto LUN 175
- Overview 175
- (3) Propagating Error suspend 176
- Command specifications 177
- Notice on system operation 180
- Configuration examples 181
- (1) Cnt Ac-J 2x2 182
- Remote volume discovery 183
- Discovering a remote volume 184
- Data protection operations 186
- Data Protection facility 189
- Data Protection facility 191 191
- Permission command 192
- New options for security 193
- Permitting protected volumes 194
- Environment variables 195
- $HORCMPERM 196
- Volume discovery function 198
- GPT disk for Windows 205
- Host group control 207
- SLPR configuration examples 210
- Dual Hosts 211
- 9 Troubleshooting 214
- System log messages 217
- Command error messages 218
- Specific error codes 227
- SSB codes 228
- Calling the HP Support Center 296
- Contacting HP 297
- Related information 297
- Typographic conventions 298
- Glossary 300
- 302 Index 302
- 304 Index 304
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