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Valutato. / 5. Basato su recensioni clienti
If logical errors, such as those caused by viruses, occur on both the active side and the passive side,
the data is restored from the tape device to secondary volume 1, and then from secondary volume 1
to primary volume 1. The restored data is then applied to primary volume 2 via seed processing.
Comparison of DAG configurations
The following table compares the four types of DAG configurations that use Application Agent. Refer
to this table when setting up your system.
Table 2 Comparison of DAG configurations
Configuration 4Configuration 3Configuration 2Configuration 1Item
Backup and restore
operations are still
available if an error
occurs on one backup
volume. Backup and
restore operations are
not available if an er-
ror occurs on one
backup server.
Backup and restore
operations are still
available if an error
occurs on one
backup server or on
one backup volume.
If an error occurs on the backup server or the
backup volume, backup and restore operations
are not available.
Fault toler-
ance
More backup servers and backup volumes
are required than in Configuration 1 and
Configuration 2.
Fewer backup servers and backup volumes
are required than in Configuration 3 and
Configuration 4.
Cost
Legend:
Configuration 1: Configuration in which the active mailbox database copy is backed up and re-
stored
Configuration 2: Configuration in which the passive mailbox database copy is backed up and
restored
Configuration 3: Configuration in which the active mailbox database copy and the passive
mailbox database copy are backed up and restored by different backup servers
Configuration 4: Configuration in which the active mailbox database copy and the passive
mailbox database copy are backed up and restored by the same backup server
Requirements and precautions for backing up Exchange
databases
The following table describes the types of data subject to backup in the Exchange database.
Table 3 Types of data subject to backup in the Exchange database
ExtensionFiles subject to backupDatabase subject to backup
*.edb
Data files (Exchange Server Information Store)
Exchange Server storage group
*.log
Transaction log files
*.chk
Checkpoint files
*.edb
Data files
Exchange Server Information Store
*.log
Transaction log files
Application Agent system configurations68
- HP XP7 Replication Manager 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
- Checkpoint files 69
- Using VSS 70
- NA--I*.edb 73
- Cascade configuration 75
- CCR configuration 76
- SCR configuration 77
- DAG configuration 77
- Expanding dynamic volumes 93
- Setting up RAID Manager 98
- Specifying instance numbers 113
- Specifiable val 119
- (default) 119
- DescriptionParameter 119
- Creating dictionary map files 128
- Cluster Groups) 136
- PROMPT> drmclusinit VCS 137
- PROMPT> drmtapeinit 154
- Configuration parameters 155
- Configuration file examples 158
- Creating a list file 160
- File name of the list file 161
- List file storage location 161
- Contents of the list file 161
- (absolute path) 163
- Prerequisite VBScript version 182
- Deletion of unnecessary files 182
- Creating operation IDs 185
- D:VServer_CFSCG_1 188
- M:,N:VServer_CFSCG_1 188
- BACKUP_OBJECT 196
- STORAGE_1VServer_CEXGCG_1 198
- STORAGE_1VServer_COperation_A 198
- Creating a user script 201
- Coding rules for user scripts 202
- Entries in user scripts 203
- Omission 204
- Multiple 204
- Script environment variables 209
- Command execution permission 209
- Examples of user script usage 211
- Application Agent commands 221
- Basic commands 222
- Precautions on operations 225
- Precautions on backup 227
- Precautions on restoration 229
- Precautions when mounting 230
- Command execution conditions 231
- Windows 243
- 5 Operation for file systems 245
- System configuration 246
- Processing flow 247
- Operation for file systems248 248
- Operation for file systems250 250
- Flow of processing 251
- Operation for file systems252 252
- Resynchronizing copy groups 253
- Backing up a file system 253
- Backup using VSS 255
- Operation for file systems256 256
- User script example 260
- ExplanationScript text 261
- Backup execution example 263
- Operation for file systems264 264
- Operations at the local site 266
- Operations at the remote site 267
- Operation for file systems274 274
- Deleting backup data 275
- Operation for file systems276 276
- Service status 286
- Database status 287
- Database type 290
- DBServer > 295
- -copy_size 7 301
- -mount_pt E: 303
- Backing up transaction logs 314
- BKServer > 322
- Locking a copy group 324
- Unlocking a copy group 326
- Operation at the local site 329
- Operation at the remote site 330
- -password password 339
- PROMPT> osql -E 353
- 2> go 353
- Outline of user script files 357
- Sample user script files 358
- DescriptionScript code 360
- PROMPT> 371
- \original-ID_database-ID.dmp 377
- DBServer > del X:\*.dmp 379
- \Operation_A\DB X:\ 379
- Operation flow 381
- Operation example 382
- Back up the databases 390
- Restore the databases 392
- Perform database recovery 393
- Prepare to restart operations 393
- SG1\IS12 419
- BKServer A > 435
- BKServer A > drmtapecat 435
- BKServer B > 453
- BKServer B > drmtapecat 458
- System Configuration 485
- Disk P1, Disk P3 486
- Disk P2, Disk P4 486
- 8 Troubleshooting 503
- OS log information 504
- Application Agent information 505
- RAID Manager information 507
- Other information 508
- Operation details 508
- ExplanationItem 510
- Adjusting trace log settings 511
- Investigating collected data 511
- Troubleshooting512 512
- Troubleshooting516 516
- 9 Support and other resources 517
- Conventions 518
- Server configuration 522
- Storage system configuration 523
- (C:\Windows\horcm1.conf) 525
- (C:\Windows\horcm2.conf) 525
- (DEFAULT.dat) 528
- VG03,VOL31 534
- VG03,VOL32 534
- VG03,VOL33 534
- VG03,VOL34 534
- Application Agent is running 541
- GUI terms 549
- Glossary 551
- Glossary552 552
- Glossary554 554
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