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(6) HORCM_LDEVG
The HORCM_LDEVG parameter defines the device group information that the RAID Manager
instance reads. For details about device group, see“LDEV group function” (page 66).
The following values are defined.
• Copy group: specifies a name of copy group. This is equivalent to the dev_group of
HORCM_DEV and HORCM_LDEV parameters.
RAID Manager operates by using the information defined here.
• ldev_group: Specifies a name of device group that the RAID Manager instance reads.
• Serial#: Specifies a DKC serial number.
(7) HORCM_INSTP
The HORCM_INSTP parameter uses when specifying a path ID for the link of Continuous Access
Synchronous as well as HORCM_INST parameter.
HORCM_INSTP
dev_group ip_address service pathID
VG01 HSTA horcm 1
VG02 HSTA horcm 2
NOTE: The path ID can be specified at Continuous Access Synchronous. It cannot be specified
at Cnt Ac-J. Because the path ID is used at the paircreate command and the pairresync
-swapp[s], it must be specified at the both site of P-VOL and S-VOL. If the path ID is not specified,
it is used as a CU free.
Configuration definition for cascading volume pairs
The RAID Manager software (HORCM) is capable of keeping track of up to seven pair associations
per LDEV (1 for Continuous Access Synchronous/Cnt Ac-J, 3 for Cnt Ac-J, 3 for Business
Copy/Snapshot, 1 for Snapshot). By this management, RAID Manager can be assigned to seven
groups per LU that describe seven mirror descriptors for a configuration definition file.
Figure 16 Mirror descriptors and group assignment
Configuration file and mirror descriptors
The group name and MU# described in the HORCM_DEV parameter of a configuration definition
file are assigned the corresponding mirror descriptors, as outlined in Table 5 (page 33). “Omission
of MU#” is handled as MU#0, and the specified group is registered to MU#0 on Business Copy
and Continuous Access Synchronous. Also, the MU# that is noted for HORCM_DEV in Table 5 (page
33) reflects a random numbering sequence (for example, 2, 1, 0).
32 RAID Manager software environment
- P9000 RAID Manager User Guide 1
- Contents 3
- 4 Contents 4
- Contents 5 5
- 6 Contents 6
- Contents 7 7
- 1 Overview 8
- Provisioning function 9
- Precheck function 10
- User authentication 11
- 12 Overview 12
- In-system replication 13
- Remote replication 13
- Data protection 13
- ◦ A command server 14
- Command device 14
- Command device guarding 15
- # horcctl -DI 16
- AI = 14 TI = 0 CI = 1 16
- Command competition 18
- Command flow 18
- HORCM operational environment 19
- Configuration definition file 23
- LimitTypeDefaultParameter 24
- PRODUCT_ID 26
- HORCM_CMD 27
- \\.\CMD-30095-250-CL1-A 27
- HORCM_INSTP 32
- Business Copy 34
- RAID Manager software files 38
- RAID Manager log files 42
- RAID Manager trace files 43
- Logging raidcom command 46
- /var/log/raidcom.err 47
- User-created files 49
- Controlling User Role 52
- Controlling user resources 53
- Resource lock function 58
- Command execution modes 59
- Context check 60
- Details of check contents 61
- Configuration check 65
- LDEV group function 66
- LDEV group function 67 67
- Device group function 69
- Device group creation 71
- LDEV addition to device group 71
- Device group deletion 73
- Copy group function 74
- When creating a copy group 75
- When deleting a copy group 75
- Copy group creation 76
- LDEV addition to a copy group 76
- LDEV deletion from copy group 77
- Copy group deletion 78
- LDEV group function 79 79
- LDEV group function 81 81
- Using dummy LU 82
- Displayed pair statuses 83
- Multi-platform volumes 84
- 4 Starting up RAID Manager 87
- One instance 88
- Two instances 88
- ◦ for starting [HORCM0]: 91
- About provisioning operations 92
- Asynchronous commands 93
- LDEV nickname function 94
- Operation method 101
- Resource group operations 103
- Internal volume operations 104
- Script examples 106
- Operational flow 114
- External volume operations 120
- Script Examples 121
- Cache Partition operations 123
- Displaying CLPR information 124
- Features of paired volumes 125
- Synchronous 126
- Business Copy operations 127
- Business Copy cascading pairs 128
- Business Copy operations 129 129
- Journal operations 133
- # pairsplit -g oradb 137
- # pairdisplay -g oradb -fc 137
- Access Journal volumes 138
- Restrictions 139
- Snapshot operations 144
- Snapshot volumes 145
- Snapshot pair status 146
- Controlling Auto LUN 147
- Commands to control Auto LUN 149
- Restrictions for Auto LUN 153
- Overview 153
- (3) Propagating Error suspend 154
- Command specifications 155
- Notice on system operation 158
- Configuration examples 159
- (1) Cnt Ac-J 2x2 160
- Remote volume discovery 161
- Discovering a remote volume 162
- Data protection operations 164
- Data Protection facility 167
- # pairdisplay -g oradb 169
- Data Protection facility 169 169
- New options for security 170
- Permitting protected volumes 171
- Environment variables 173
- Volume discovery function 175
- GPT disk for Windows 181
- Host group control 183
- SLPR configuration examples 186
- Dual Hosts 187
- 9 Troubleshooting 190
- System log messages 193
- Command error messages 194
- Specific error codes 202
- SSB codes 203
- (continued) 226
- Contacting HP 266
- Related information 266
- Typographic conventions 267
- Glossary 269
- 270 Glossary 270
- 272 Index 272
- 274 Index 274
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