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Figure 40 Multiple devices, multiple media pools
Implementing a media rotation policy
What is a media rotation policy?
A media rotation policy defines how media are used during backup, including the
following. In defining a media rotation policy, answer the following questions:
• How many backup generations are needed?
• Where are media stored?
• How often media are used?
• When can media be overwritten and re-used for new backups?
• When are media old enough to be replaced?
Traditional backup strategies used with older backup tools required a thoroughly
planned and well defined media rotation policy controlled by the administrator rather
than a backup application. With Data Protector, you can implement a rotation policy
by specifying usage options such that media selection for subsequent backups is
done automatically.
Concepts guide 143
- HP Data Protector A.06.10 1
- Concepts guide 1
- Contents 3
- Concepts guide 17 17
- Concepts guide 19 19
- Publication history 21
- Publication history22 22
- About this guide 23
- About this guide24 24
- Online Help 26
- Documentation map 27
- GuideAbbreviation 28
- Integrations 29
- GuideIntegration 30
- About this guide32 32
- General information 33
- HP technical support 33
- Subscription service 34
- HP websites 34
- Documentation feedback 34
- 1 About backup and Data 35
- Protector 35
- What is a backup? 38
- What is a restore? 39
- Data Protector architecture 40
- HP Data Protector product 41
- Operations in the cell 42
- Enterprise environments 45
- Media management 48
- Backup devices 49
- User interfaces 50
- Data Protector Java GUI 52
- 2 Planning your backup 57
- Backup strategy planning 58
- Planning cells 62
- Windows domains 65
- Geographically remote cells 66
- The infrastructure 67
- Using hardware in parallel 69
- Software compression 70
- Hardware compression 70
- Full and incremental backups 71
- Object distribution to media 71
- Disk performance 72
- Planning security 73
- Data Protector users accounts 74
- Data Protector user groups 75
- Visibility of backed up data 76
- Data encryption 76
- What is backup ownership? 78
- Clustering 79
- Cluster support 82
- Example cluster environments 83
- Full backups 92
- Incremental backups 92
- Enhanced incremental backup 93
- Types of incremental backups 93
- Considering restore 96
- Data protection 99
- Catalog protection 100
- Logging level 100
- Browsing files for restore 100
- Backing up data 102
- Selecting backup objects 103
- Media sets 105
- Backup sessions 105
- Object mirrors 105
- Scheduling tips and tricks 106
- When to schedule backups 107
- Staggering full backups 107
- Optimizing for restore 107
- Duplicating backed up data 112
- Copying objects 113
- Why use object copy? 116
- Object mirroring 119
- Copying media 122
- Automated media copying 123
- Smart media copying using VLS 124
- Restoring data 125
- Selection of the media set 126
- Selection of devices 126
- Disaster recovery 128
- Disaster recovery methods 130
- 3 Media management and 133
- Media life cycle 134
- Media pools 135
- Free pools 137
- Media pool usage examples 140
- Media needed for rotation 144
- Labeling Data Protector media 145
- Location field 146
- Selecting media for backups 147
- Calculating media condition 150
- Vaulting 151
- How load balancing works 156
- Segment size 157
- Block size 158
- Number of disk agent buffers 159
- Device locking and lock names 159
- Standalone devices 160
- Small magazine devices 161
- Large libraries 162
- Enter / eject mail slots 163
- Barcode support 163
- Cleaning tape support 164
- Storage Area Networks 171
- Fibre Channel 172
- Point-to-point topology 173
- Loop topology 173
- Switched topology 174
- Device sharing in SAN 175
- Device locking 177
- Indirect Library Access 178
- Direct Library Access 179
- Device sharing in clusters 180
- Floating drives 181
- 4 Users and user groups 183
- Users and user groups 184
- Using predefined user groups 185
- Data Protector user rights 185
- Users and user groups186 186
- 5 The Data Protector internal 187
- IDB architecture 189
- Catalog Database (CDB) 191
- IDB operation 194
- During restore 195
- Exporting media 195
- Overview of IDB management 196
- IDB growth and performance 197
- IDB size estimation 203
- 6 Service management 205
- Service management206 206
- Service management208 208
- SNMP traps 210
- The monitor 210
- Reporting and notification 211
- Service management212 212
- Windows application log 213
- Java-based online reporting 213
- Service management214 214
- Service management216 216
- Data Protector OM SIP 217
- Service management218 218
- 7 How Data Protector operates 219
- Queuing of backup sessions 224
- Restore sessions 225
- Queuing of restore sessions 227
- Parallel restores 228
- Object copy sessions 229
- Object consolidation sessions 233
- Media management sessions 235
- 8 Integration with database 237
- 9 Direct backup 243
- Direct backup 244
- How direct backup works 245
- Environment 246
- About resolve 247
- About XCopy 247
- Direct backup process flow 248
- Requirements and support 249
- Supported configurations 250
- Direct backup252 252
- 10 Disk backup 253
- Disk backup benefits 254
- Disk backup256 256
- 11 Synthetic backup 257
- Synthetic backup benefits 258
- Restore and synthetic backup 260
- Synthetic backup262 262
- Synthetic backup264 264
- 12 Split mirror concepts 265
- Split mirror concepts266 266
- Split mirror concepts268 268
- Local mirror - single host 270
- Remote mirror 270
- Split mirror concepts272 272
- Other configurations 273
- Split mirror concepts274 274
- 13 Snapshot concepts 275
- Snapshot concepts 276
- Snapshot backup types 278
- Instant recovery 279
- Types of snapshots 279
- Snapshot concepts280 280
- Snapshot concepts282 282
- Snapshot concepts284 284
- Concepts guide 287 287
- Snapshot concepts288 288
- 14 Microsoft Volume Shadow 289
- Copy service 289
- A Backup scenarios 297
- Backup scenarios298 298
- Company XYZ 299
- Backup strategy requirements 302
- Proposed solution 303
- Backup scenarios304 304
- Backup scenarios306 306
- 70 GB / 7 h23 GB / 3 hEnglish 309
- 31 GB / 3 h10 GB / 1 hAdmin 309
- Backup scenarios310 310
- Backup scenarios312 312
- Company ABC 313
- Backup scenarios314 314
- Backup scenarios318 318
- 172243A*ABC Cape 319
- Backup scenarios322 322
- Backup scenarios324 324
- Backup options 328
- Backup scenarios330 330
- B Further information 331
- Further information332 332
- Incr1 backup 333
- Further information334 334
- Full backup 335
- Further information336 336
- Further information338 338
- Internationalization 340
- File name handling 341
- Browsing file names 342
- Concepts guide 343 343
- Further information344 344
- Glossary 345
- Glossary346 346
- Glossary348 348
- Glossary350 350
- Glossary352 352
- Glossary354 354
- Glossary356 356
- Glossary358 358
- Glossary360 360
- (EMC Symmetrix 361
- Glossary362 362
- Glossary364 364
- Glossary366 366
- Glossary368 368
- Glossary370 370
- Glossary372 372
- Glossary374 374
- Glossary376 376
- Glossary378 378
- Glossary380 380
- Glossary382 382
- Glossary384 384
- Glossary386 386
- Glossary388 388
- (HP StorageWorks 389
- VA and HP 389
- StorageWorks EVA 389
- Disk Array XP 390
- Glossary392 392
- (ZDB specific term) 394
- Glossary396 396
- Glossary398 398
- Glossary400 400
- Glossary402 402
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