ACRONIS Backup & Recovery 10 Advanced Server Virtual Edition, ES Podręcznik Użytkownika Strona 163
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ToH Example 3
Imagine the backup plan has the following tape options:
the Use a separate tape set option is selected
the Always use a free tape: For each full backup option is selected
the Always use a free tape: For each incremental backup option is selected
the Always use a free tape: For each differential backup option is selected.
The figure shows tape rotation for the ToH scheme with these options.
Maximal number of tapes used in the rotation is seven that is more than in classical five-level ToH
scheme.
Two additional tapes used for:
1. keeping an old full backup (postponed deletion) as it is a base for other level backups
2. keeping an old backup on a level until a new backup has been successfully created on the level.
The example demonstrates that the tapes’ usage efficiency is reduced. Moreover, the data recovery
requires access to the backups kept on one (full backups, 6%), two (differential backups, 44%) or
three (incremental backups, 50%) tapes. So on average the operation takes more time than in the
previous examples.
Tape planning
Once you have specified the backup scheme and tape options, you should determine the minimal
number of tapes necessary to achieve full automation of tape rotation.
- User's Guide 1
- Table of contents 3
- 1 Introducing Acronis 8
- Backup & Recovery™ 10 8
- 1.2 Getting started 9
- Navigation tree 12
- Shortcuts bar 13
- Actions 14
- How to expand/minimize panes 15
- Action pages 16
- Action page - Controls 17
- 1.3.1 Agent for Windows 18
- 1.3.2 Agent for Linux 19
- 1.3.3 Agent for ESX/ESXi 20
- 1.3.4.2 Storage Node 21
- 1.3.4.3 PXE Server 22
- 1.3.4.4 License Server 22
- 1.4 Supported file systems 23
- Acronis License Server 24
- 10 Storage Node 24
- 1.6 System requirements 26
- 1.7 Technical Support 27
- 2.1 Basic concepts 28
- Backup using bootable media 30
- 2.3 Owners and credentials 33
- Full backup 34
- Incremental backup 35
- Differential backup 35
- 2.5 GFS backup scheme 36
- The resulting archive: ideal 38
- The resulting archive: real 38
- Tower of Hanoi overview 40
- Tower of Hanoi by Acronis 40
- 2.7 Retention rules 42
- Combination of rules 1 and 2 43
- Best practices 44
- Backing up dynamic volumes 45
- Recovering dynamic volumes 45
- Backup (GUI) 46
- 2.9.2 Backing up MD devices 47
- Preparation 50
- Virtual machines backup 50
- Guest operating systems 51
- Guest HDD 51
- Troubleshooting 51
- 2.12 Tape support 52
- 2.13 Support for SNMP 54
- 2.14.1 Acronis Secure Zone 55
- Restore) 57
- Limitations 58
- Getting Universal Restore 58
- Supported operating systems 58
- Limitation 59
- How it works 59
- Usage scenarios 59
- How to use 59
- 2.15.1 Basic concepts 60
- Setting up the storage node 63
- Operating system (OS) 65
- IP address range 65
- 2.15.3.4 Example 66
- Policy on a machine 68
- Policy on a group 68
- Backup policy state diagram 73
- 2.15.6 Deduplication 75
- Deduplication database 76
- Deduplication at source 76
- Deduplication at target 76
- Compacting 77
- What ratio to expect 78
- Local connection 80
- Remote connection 80
- Example 1 82
- Example 2 82
- On a domain controller 83
- Remote Agent ports 88
- Client Encryption options 88
- Server Encryption options 89
- 2.15.8.5 SSL certificates 90
- Certificate path 91
- Self-signed certificates 91
- Non-self-signed certificates 92
- 3 Options 93
- 3.1.3 Time-based alerts 94
- 3.1.4 Number of tasks 94
- 3.1.5 Fonts 94
- 3.2.1 Logging level 95
- 3.2.2 Log cleanup rules 95
- 3.2.3 Event tracing 96
- 3.2.5 Acronis WOL Proxy 97
- 3.2.6 VM protection options 97
- 3.2.7 Online backup proxy 98
- 3.3 Machine options 99
- 3.3.2 Event tracing 100
- Windows 101
- 3.3.3 Log cleanup rules 102
- 3.3.4 Online backup proxy 102
- 3.4.1.1 Archive protection 105
- 3.4.1.3 Pre/Post commands 107
- Pre-backup command 108
- Post-backup command 108
- Pre-data capture command 109
- Post-data capture command 110
- Always create a snapshot 111
- Do not create a snapshot 111
- 3.4.1.8 Compression level 112
- 3.4.1.9 Backup performance 113
- Backup priority 113
- HDD writing speed 113
- Network connection speed 114
- 3.4.1.10 Notifications 114
- Messenger service (WinPopup) 115
- 3.4.1.11 Event tracing 116
- Windows event log 116
- SNMP notifications 116
- 3.4.1.13 Backup splitting 117
- 3.4.1.15 Media components 118
- 3.4.1.16 Error handling 119
- 3.4.1.17 Dual destination 120
- Skip the task execution 121
- 3.4.1.20 Tape support 122
- Always use a free tape 123
- Reset archive bit 124
- Use FTP in Active mode 125
- 3.4.2.1 Pre/Post commands 127
- Pre-recovery command 127
- Post-recovery command 128
- 3.4.2.2 Recovery priority 128
- 3.4.2.3 File-level security 129
- 3.4.2.4 Notifications 129
- 3.4.2.5 Event tracing 130
- 3.4.2.6 Error handling 132
- 3.4.2.7 Additional settings 132
- 3.4.2.8 VM power management 133
- 4 Vaults 135
- 4.1 Centralized vaults 136
- Vault toolbar 137
- Pie chart with legend 137
- Vault content 137
- Vault path 140
- Vault database path 141
- Vault encryption 141
- 4.1.3 Tape libraries 143
- 4.1.3.2 Hardware 144
- 4.1.3.3 Limitations 144
- 4.1.3.4 RSM Media Pools 145
- Prerequisites 146
- Backing up to tape library 147
- Recovering from tape library 148
- Inventory 149
- Labeling 150
- 4.1.3.7 Tape support 150
- 4.1.3.8 Tape rotation 151
- Choosing a backup scheme 152
- Criteria of the choice 152
- Case to analyze 153
- GFS Example 1 154
- GFS Example 2 157
- GFS Example 3 159
- ToH Example 1 161
- ToH Example 2 162
- ToH Example 3 163
- Tape planning 163
- Tape planning: Example 1 164
- Tape planning: Example 2 165
- 4.1.3.9 What if 165
- 4.2 Personal vaults 166
- Metadata 167
- 4.3 Common operations 169
- To show or hide columns 172
- 5 Scheduling 173
- 5.1 Daily schedule 174
- first at 8 AM 175
- second at 12 PM (noon) 175
- third at 3 PM 175
- fourth at 5 PM 175
- fifth at 7 PM 175
- 5.2 Weekly schedule 176
- 5.3 Monthly schedule 178
- Examples 179
- Parameters 181
- Use Wake-On-LAN 182
- To specify advanced settings 183
- 5.7 Conditions 184
- 5.7.1 User is idle 185
- 5.7.3 Fits time interval 186
- 5.7.4 User logged off 186
- Example 187
- Example: 187
- 6 Direct management 188
- Activities 189
- System view 190
- Way of working 190
- Backup plan execution states 191
- Backup plan statuses 191
- Task states 192
- Task statuses 193
- Backup plan (p. 203) 194
- Recovery task (p. 230) 194
- Validation task (p. 251) 194
- Run backup plan 198
- Task details 198
- Archive 199
- Settings 199
- Backup plan details 200
- 6.1.3 Log 201
- 6.2 Creating a backup plan 203
- General 204
- What to backup 204
- Where to back up 204
- How to back up 205
- Archive validation 205
- Backup options 205
- Convert to VM 205
- To specify credentials 206
- Parameters specification 207
- 6.2.4 Source type 208
- 6.2.5 Items to back up 209
- 6.2.7 Exclusions 211
- 6.2.8 Archive 213
- 3. Naming the new archive 214
- 6.2.9.1 Usage examples 215
- 6.2.9.2 The [DATE] variable 217
- 6.2.11 Backup schemes 219
- 6.2.11.3 Simple scheme 220
- At a glance 223
- Roll-back period 224
- 6.2.12 Archive validation 228
- 6.3 Recovering data 230
- What to recover 231
- Where to recover 231
- When to recover 232
- Recovery options 232
- 6.3.1 Task credentials 233
- 6.3.2 Archive selection 233
- 6.3.3 Data type 234
- 6.3.4 Content selection 234
- 6.3.4.2 Files selection 235
- 6.3.6 Destination selection 236
- Disk destination 237
- NT signature 237
- 6.3.6.2 Volumes 237
- MBR destination 238
- Volume destination 239
- Volume properties 239
- Storage 240
- 6.3.6.5 File destination 241
- Recovery exclusions 241
- Overwriting 242
- 6.3.8 When to recover 243
- 6.3.9 Universal Restore 243
- Universal Restore settings 244
- Post-conversion operations 246
- Windows NT/2000/XP/2003 249
- Windows Vista/2008 249
- 6.4.1 Task credentials 252
- 6.4.2 Archive selection 253
- 6.4.3 Backup selection 254
- 6.4.4 Location selection 254
- 6.5 Mounting an image 255
- 6.5.1 Archive selection 256
- 6.5.2 Backup selection 257
- 6.5.3 Access credentials 257
- 6.6 Managing mounted images 258
- 6.7.1 Task credentials 261
- 6.7.2 Archive selection 262
- 6.7.3 Backup selection 263
- 6.7.5 Location selection 263
- 2. Using the archives table 264
- 6.8 Acronis Secure Zone 265
- To set up a password 266
- To disable password 266
- 6.8.1.4 Result confirmation 267
- 6.10 Bootable media 269
- Linux-based bootable media 270
- PE-based bootable media 270
- Using Bart PE 271
- Kernel parameters 272
- Network settings 274
- Network port 275
- \winpe_x86\ISO 277
- To add an iSCSI device 279
- Linux commands and utilities 280
- Mounting backup volumes 284
- 6.10.6 Acronis PXE Server 285
- 6.11 Disk management 287
- Starting the operations 288
- 6.11.5 Disk operations 289
- 6.11.5.2 Basic disk cloning 290
- Using advanced options 291
- System disk conversion 293
- 6.11.6 Volume operations 295
- Create volume wizard 296
- Select destination disks 297
- Set the volume size 297
- Set the volume options 298
- 6.11.6.2 Delete volume 299
- 6.11.6.3 Set active volume 299
- 6.11.6.6 Format volume 300
- 6.11.7 Pending operations 301
- 7 Centralized management 303
- 7.1.2 Backup policies 305
- Machines selection 308
- 7.1.2.4 Policy details 309
- 7.1.3 Physical machines 310
- 7.1.3.1 Actions on machines 311
- Applying policies 312
- Grouping actions 312
- Other actions 313
- To add a machine 314
- Text file requirements 315
- Adding machines to a group 317
- Machine details 317
- Plans and tasks 319
- Member of 321
- Inheritance order 322
- 7.1.3.2 Actions on groups 323
- Adding multiple criteria 324
- Move one group to another 326
- Editing custom groups 326
- Group details 326
- 7.1.4 Virtual machines 327
- Grouping of virtual machines 329
- VMotion 333
- Storage VMotion 333
- Performance considerations 333
- Privileges for a folder 335
- 7.1.5 Storage nodes 336
- Information panel 337
- Adding a storage node 338
- 7.1.6 Tasks 339
- 7.1.6.1 Actions on tasks 340
- 7.1.7 Log 342
- Configuring the log table 344
- 7.1.8 Reporting 345
- Generating reports 346
- Filters 346
- Report view 347
- Report coverage 349
- 7.1.8.8 Column selection 350
- 7.1.8.9 Report view 350
- Connection parameters 362
- Event tracing parameters 364
- What to back up 368
- 7.3.1 Policy credentials 370
- 7.3.2 Items to back up 370
- Names for logical volumes 373
- 7.3.4 Exclusions 375
- 7.3.5 Archive 377
- 7.3.7.1 Back up now scheme 379
- 7.3.7.3 Simple scheme 379
- Description 380
- Resulting tasks 387
- 8 Online backup 388
- Server uses a free license 390
- 8.1.7 Initial Seeding FAQ 392
- Hard drive types 394
- Packaging 394
- Scale Recovery? 397
- To renew a subscription 400
- 8.2 Where do I start? 401
- 8.3 Choosing a subscription 401
- Trial subscriptions 402
- Operations 405
- Backup and recovery options 405
- 8.7 Terminology reference 406
- 9 Glossary 408
- Backup plan (Plan) 410
- Backup policy (Policy) 410
- Backup scheme 411
- Bootable agent 411
- Bootable media 411
- Built-in group 411
- Centralized backup plan 412
- Centralized management 412
- Centralized task 412
- Centralized vault 412
- Direct management 414
- Disk backup (Image) 414
- Disk group 414
- Dynamic disk 415
- Dynamic group 415
- Dynamic volume 416
- Encrypted archive 416
- Encrypted vault 416
- Managed vault 418
- Media builder 418
- Personal vault 418
- Physical machine 418
- Storage node-side cleanup 420
- Storage node-side validation 420
- Tower of Hanoi 420
- Unmanaged vault 421
- Validation 421
- Validation rules 421
- Virtual machine 422
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