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The following figure shows the example when LOCAL_BACKUP is set to YES and the secondary
volume on the local site is backed up. In this example, the point A is used as the start point and
log backup 1 and 2 are obtained.
Subsequently, the secondary volume on the remote site is backed up when LOCAL_BACKUP is set
to NO.
The log backup 3 is obtained, with the backup ID 0000000001.
When the drmsqllogbackup -v command is executed, log backup 1, 2, and 3 are displayed
for the backup ID 0000000001. If you perform restore operations by using the backup ID
0000000001, log backup 3 cannot be recovered on the local site (however, log backup 3 can
be recovered on the remote site).
Also, if an operation is performed on the remote site due to problems on the local site, the display
of the drmsqllogbackup -v command on the remote site is inaccurate because the backup
catalog does not exist on the remote site.
• Roll-forwards using a transaction log file which is marked by the BEGIN TRANSACTION MARK
command of SQL Server, and Roll-forwards with a specified recovery time are not supported.
Precautions regarding sequences of transaction logs
To obtain backups of transaction logs, Application Agent provides EX_DRM_SQL_TLOG_BACKUP.
Application Agent manages internal backups from primary volumes to secondary volumes, as well
as transaction log backup sequences. As such, keep the following in mind.
Transaction log backups after roll-forward
After applying a transaction log backed up by Application Agent, you must use Application Agent
commands to back up transaction logs, using one of the following methods:
• Apply backups of all transaction logs, using roll-forward.
Application Agent CLI User Guide 281
- Part number: TB584-96073 1
- Eighth edition: May 2013 1
- DescriptionEditionVersionDate 2
- Contents 3
- Preface26 26
- Application Agent features 27
- Application Agent functions 28
- Restoring data 29
- Cluster support 30
- Managing generations 32
- Journal 38
- Cascade configurations 49
- Multi-target configurations 50
- Allocating metafiles 55
- Using a cluster configuration 58
- CCR configurations 58
- SCR configurations 61
- DAG configurations 62
- Using VSS 70
- 30 minutes5100 GB 73
- • CPU: 3.0 GHz x 2 73
- • Memory: 4 GB 73
- • Storage system: HP P9500 73
- NNAA--I*.stm 74
- Cascade configuration 76
- CCR configuration 77
- SCR configuration 78
- DAG configuration 78
- Expanding dynamic volumes 94
- Setting up RAID Manager 100
- Specifying instance numbers 115
- Specifiable val 120
- (default) 120
- DescriptionParameter 120
- Creating dictionary map files 129
- Cluster Groups) 136
- PROMPT> drmclusinit VCS 137
- Configuration parameters 155
- Configuration file examples 158
- Creating a list file 159
- VG01,dev01 160
- VG01,dev02 160
- File name of the list file 161
- List file storage location 161
- Contents of the list file 161
- (absolute path) 162
- Prerequisite VBScript version 181
- Deletion of unnecessary files 181
- Creating operation IDs 184
- BACKUP_OBJECT 190
- DBServer_A 192
- DBServer_B 192
- STORAGE_1VServer_CEXGCG_1 197
- Creating a user script 201
- Entries in user scripts 202
- Omission 204
- Multiple 204
- Script environment variables 208
- Command execution permission 208
- Examples of user script usage 210
- Application Agent commands 219
- Basic commands 220
- Precautions on operations 223
- Precautions on backup 225
- Precautions on restoration 227
- Precautions when mounting 228
- Command execution conditions 229
- Windows 241
- 5 Operation for file systems 243
- System configuration 244
- Processing flow 245
- Operation for file systems246 246
- Operation for file systems248 248
- Flow of processing 249
- Operation for file systems250 250
- Resynchronizing copy groups 251
- Backing up a file system 251
- Backup using VSS 253
- Operation for file systems254 254
- User script example 258
- ExplanationScript text 259
- Backup execution example 261
- Operation for file systems262 262
- Operations at the local site 264
- Operations at the remote site 265
- Operation for file systems272 272
- Deleting backup data 273
- Operation for file systems274 274
- Service status 284
- Database status 285
- Database type 288
- DBServer > 293
- -copy_size 7 299
- -mount_pt E: 301
- Backing up transaction logs 312
- BKServer > 320
- Locking a copy group 322
- Unlocking a copy group 324
- Operation at the local site 327
- Operation at the remote site 328
- -password password 337
- PROMPT> osql -E 351
- 2> go 351
- Outline of user script files 355
- Sample user script files 356
- DescriptionScript code 358
- PROMPT> 369
- \original-ID_database-ID.dmp 375
- DBServer > del X:\*.dmp 377
- \Operation_A\DB X:\ 377
- Operation flow 379
- Operation example 380
- Back up the databases 388
- Restore the databases 390
- Perform database recovery 391
- Prepare to restart operations 391
- Cold backup 413
- Online backup 414
- SG1\IS12 424
- BKServer A > drmtapecat 439
- BKServer A > 439
- BKServer B > 457
- BKServer B > drmtapecat 462
- System Configuration 489
- Disk P1, Disk P3 490
- Disk P2, Disk P4 490
- 8 Troubleshooting 507
- OS log information 508
- Application Agent information 509
- RAID Manager information 511
- Other information 512
- Operation details 512
- ExplanationItem 514
- Adjusting trace log settings 515
- Investigating collected data 515
- Troubleshooting516 516
- Troubleshooting520 520
- Troubleshooting524 524
- 9 Support and other resources 525
- Conventions 526
- Server configuration 530
- Storage system configuration 531
- (C:\Windows\horcm1.conf) 533
- (C:\Windows\horcm2.conf) 533
- (DEFAULT.dat) 536
- VG03,VOL31 542
- VG03,VOL32 542
- VG03,VOL33 542
- VG03,VOL34 542
- Application Agent is running 549
- GUI terms 557
- Glossary 559
- Glossary560 560
- Glossary562 562
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