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Restrictions on Database Validator
• Oracle tablespace location
File system-based Oracle files are not supported by Database Validator. All Oracle
tablespace files must be placed on raw volumes (including LVM raw volumes) directly.
◦
◦ If host-based striping is used on raw volumes, then the stripe size must be an exact multiple
of the Oracle block size.
◦ Oracle redo log files (including archive logs) must be on separate volumes with respect
to the data files (including control files). In other words, Oracle redo log files and the
data files must not be mixed on the same LU.
• Restoring Oracle files
◦ Before restoring Oracle data files from a backup, data validation may need to be
temporarily turned off for those data files that were backed up prior to the Oracle checksum
being enabled.
Old blocks may exist on disk without checksum information in them if the database was running
without checksum enabled in the past.
• Oracle on LVM(VxVM)
◦ LVM block size must be a multiple of the Oracle block size. The Oracle block size must
be less than or equal to the minimum of the LVM stripe size and the largest block size at
which LVM will not fracture (known as “Logical Track Group” in LVM), which is 256 KB
in LVM.
◦ When adding new physical volumes (PVs) to a logical volume (LV) to be used as an
Oracle data file, control file, or online log, the data validation should be re-enabled in
order to have HARD checking take effect on those new PVs.
Similarly, in order to have HARD checking no longer performed on PVs that have been removed
from an LV that had previously been used by Oracle, HARD checking should be explicitly disabled
on the device corresponding to the PV.
• If host-based mirroring is used such as LVM mirroring, all component PV mirrors must be
HARD-enabled, otherwise the entire logical volume (LV) is exposed. That is, if a user takes
166 Data protection operations with RAID Manager
- 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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