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5 16 days 8 to 23 days 8 days
6 32 days 16 to 47 days 16 days
Adding a level doubles the full backup and roll-back periods.
To see why the number of recovery days varies, let us return to the previous example.
Here are the backups we have on day 12 (numbers in gray denote deleted backups).
1 2 3 4 5 6 7 8 9 10 11 12
4 1 2 1 3 1 2 1 4 1 2 1
A new level 3 differential backup has not yet been created, so the backup of day five is still stored.
Since it depends on the full backup of day one, that backup is available as well. This enables us to go
as far back as 11 days, which is the best-case scenario.
The following day, however, a new third-level differential backup is created, and the old full backup is
deleted.
1 2 3 4 5 6 7 8 9 10 11 12 13
4 1 2 1 3 1 2 1 4 1 2 1 3
This gives us only a four day recovery interval, which turns out to be the worst-case scenario.
On day 14, the interval is five days. It increases on subsequent days before decreasing again, and so
on.
1 2 3 4 5 6 7 8 9 10 11 12 13 14
4 1 2 1 3 1 2 1 4 1 2 1 3 1
The roll-back period shows how many days we are guaranteed to have even in the worst case. For a
four-level scheme, it is four days.
6.2.9.6. Custom backup scheme
At a glance
• Custom schedule and conditions for backups of each type
• Custom schedule and retention rules
Parameters
Parameter Meaning
Full backup Specifies on what schedule and under which conditions to perform a full
backup.
For example, the full backup can be set up to run every Sunday at 1:00 AM as
soon as all users are logged off.
- User's Guide 1
- Table of Contents 3
- 1.2. Getting started 8
- • Using deduplication 10
- Navigation tree 12
- Shortcuts bar 13
- "Tasks" view 15
- Action pages 16
- 1.3.1. Agent for Windows 18
- 1.3.2. Agent for Linux 19
- 1.3.3. Agent for ESX/ESXi 19
- 1.3.5.1. Management Server 20
- VMware vCenter integration 21
- 1.3.5.2. Storage Node 21
- 1.3.5.3. PXE Server 22
- 1.3.5.4. License Server 22
- 1.3.6. Management Console 23
- 1.5. Supported file systems 25
- 1.6. Hardware requirements 25
- 1.7. Technical support 26
- 2.1. Basic concepts 28
- Backup using bootable media 30
- 2.3. Owners and credentials 33
- Full backup 35
- Incremental backup 35
- Differential backup 35
- 2.5. GFS backup scheme 36
- The resulting archive: ideal 38
- The resulting archive: real 39
- Tower of Hanoi overview 40
- Tower of Hanoi by Acronis 41
- 2.7. Retention rules 42
- Combination of rules 1 and 2 44
- Best practices 45
- Backing up dynamic volumes 45
- Recovering dynamic volumes 46
- Software RAID arrays 49
- Hardware RAID arrays 50
- Virtual machines backup 51
- Guest operating systems 52
- Guest HDD 52
- Troubleshooting 53
- 2.12. Tape support 54
- 2.13.1. Acronis Secure Zone 56
- Limitation 57
- Restore) 58
- Limitations 59
- Getting Universal Restore 59
- Supported operating systems 59
- How it works 60
- Usage scenarios 60
- How to use 60
- 2.14.1. Basic concepts 61
- Setting up the storage node 64
- 2.14.3.4. Example 67
- Policy on a machine 70
- Policy on a group 70
- Backup policy state diagram 75
- 2.14.6. Deduplication 77
- Deduplication database 78
- Deduplication at source 78
- Deduplication at target 79
- What ratio to expect 81
- Local connection 82
- Remote connection 82
- Example 1 84
- Example 2 85
- On a domain controller 86
- Remote Agent ports 90
- Client Encryption options 91
- Server Encryption options 92
- 2.14.8.5. SSL certificates 93
- Self-signed certificates 94
- Non-self-signed certificates 95
- 3. Options 96
- 3.1.3. Time-based alerts 97
- 3.1.4. Number of tasks 97
- 3.1.5. Fonts 98
- 3.2.1. Logging level 98
- 3.2.2. Log cleanup rules 98
- 3.2.3. Event tracing 99
- 3.2.5. Acronis WOL Proxy 100
- 3.3. Machine options 102
- 3.3.2. Event tracing 103
- Windows 104
- 3.3.3. Log cleanup rules 105
- 3.4.1.1. Archive protection 108
- 3.4.1.3. Pre/Post commands 109
- Pre-backup command 110
- Post-backup command 111
- Pre-data capture command 112
- Post-data capture command 112
- • Always create a snapshot 113
- • Do not create a snapshot 113
- Volume shadow copy writers 114
- 3.4.1.8. Compression level 115
- 3.4.1.9. Backup performance 115
- Backup priority 115
- HDD writing speed 116
- Network connection speed 116
- 3.4.1.10. Notifications 117
- Messenger service (WinPopup) 118
- 3.4.1.11. Event tracing 118
- Windows event log 118
- SNMP notifications 119
- 3.4.1.13. Backup splitting 120
- 3.4.1.15. Media components 121
- 3.4.1.16. Error handling 122
- 3.4.1.17. Dual destination 123
- Skip the task execution 124
- 3.4.1.20. Tape support 125
- Always use a free tape 126
- Reset archive bit 127
- Use FTP in Active mode 128
- 3.4.2.1. Pre/Post commands 130
- Pre-recovery command 131
- Post-recovery command 131
- 3.4.2.2. Recovery priority 132
- 3.4.2.4. Notifications 132
- 3.4.2.5. Event tracing 134
- 3.4.2.6. Error handling 135
- 4. Vaults 138
- 4.1. Centralized vaults 139
- Vault toolbar 140
- Pie chart with legend 140
- Vault content 141
- Vault path 143
- Vault database path 144
- Vault encryption 144
- 4.1.3. Tape libraries 146
- 4.1.3.1. Overview 147
- 4.1.3.2. Hardware 147
- 4.1.3.3. Limitations 148
- 4.1.3.4. RSM Media Pools 148
- Prerequisites 149
- Backing up to tape library 151
- Recovering from tape library 151
- Inventory 152
- Labeling 153
- 4.1.3.7. Tape support 154
- 4.1.3.8. Tape rotation 155
- Choosing a backup scheme 155
- Criteria of the choice 156
- Case to analyze 156
- GFS Example 1 158
- GFS Example 2 161
- GFS Example 3 162
- ToH Example 1 164
- ToH Example 2 165
- ToH Example 3 166
- Tape planning 167
- Tape planning: Example 1 168
- Tape planning: Example 2 168
- 4.1.3.9. What if 169
- 4.2. Personal vaults 170
- 4.3. Common operations 173
- To show or hide columns 176
- 5. Scheduling 177
- 5.1. Daily schedule 178
- Examples 179
- 5.2. Weekly schedule 180
- 5.3. Monthly schedule 182
- Parameters 185
- Use Wake-On-LAN 187
- 5.6. Conditions 188
- 5.6.1. User is idle 189
- 5.6.3. Fits time interval 190
- 5.6.4. User logged off 191
- 6. Direct management 193
- Activities 194
- Way of working 195
- System view 195
- Backup plan execution states 196
- Backup plan statuses 197
- Task states 197
- Task statuses 198
- • Backup plan (p. 209) 199
- • Recovery task (p. 230) 199
- • Validation task (p. 251) 199
- Run backup plan 203
- Task details 203
- Archive 204
- Settings 204
- Backup plan details 205
- 6.1.3. Log 206
- • Click View Details 207
- 6.1.3.3. Log entry details 208
- 6.2. Creating a backup plan 209
- How to back up 210
- Archive validation 210
- Backup options 210
- Convert to VM 210
- To specify credentials 211
- 6.2.3. Source type 212
- 6.2.4. Items to back up 213
- 6.2.6. Exclusions 215
- 6.2.7. Archive 216
- 2. Using the archives table 217
- 3. Naming the new archive 217
- 6.2.9. Backup schemes 218
- 6.2.9.1. Back up now scheme 219
- 6.2.9.3. Simple scheme 219
- Description 220
- At a glance 223
- Example 224
- Roll-back period 224
- 6.2.10. Archive validation 228
- 6.3. Recovering data 230
- General 231
- What to recover 231
- Where to recover 232
- 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
- 6.3.6.1. Disks 236
- Disk destination 237
- NT signature 237
- 6.3.6.2. Volumes 237
- Recover to: 238
- MBR destination 239
- Volume destination 239
- Volume properties 239
- 6.3.6.5. File destination 241
- Exclusions 242
- 6.3.8. When to recover 243
- 6.3.9. Universal Restore 243
- Preparation 244
- Universal Restore settings 244
- Windows NT/2000/XP/2003 249
- Windows Vista/2008 249
- What to validate 252
- When to validate 252
- 6.4.1. Task credentials 253
- 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
- Unmounting images 259
- 6.7.1. Task credentials 261
- 6.7.2. Archive selection 262
- 6.7.3. Backup selection 263
- 6.7.5. Location selection 263
- 6.8. Acronis Secure Zone 265
- Activate 269
- Do not activate 269
- 6.10. Bootable media 270
- Linux-based bootable media 271
- PE-based bootable media 271
- Using Bart PE 272
- Kernel parameters 273
- Network settings 274
- Network port 275
- 2.0 is 512MB 277
- To add an iSCSI device 280
- To add an NDAS device 280
- Linux commands and utilities 281
- Mounting backup volumes 285
- 6.10.6. Acronis PXE Server 286
- 6.11. Disk management 288
- Starting the operations 289
- 6.11.5. Disk operations 290
- Using advanced options 292
- System disk conversion 294
- 6.11.6. Volume operations 296
- Types of dynamic volumes 297
- Create volume wizard 298
- Select destination disks 298
- Set the volume size 299
- Set the volume options 299
- 6.11.6.2. Delete volume 300
- 6.11.6.3. Set active volume 301
- 6.11.6.6. Format volume 302
- 6.11.7. Pending operations 303
- 7. Centralized management 304
- 7.1.2. Backup policies 306
- Machines selection 309
- 7.1.2.4. Policy details 310
- 7.1.3. Physical machines 311
- Applying policies 313
- Grouping actions 313
- Other actions 314
- To add a machine 315
- • installing the agent 315
- Text file requirements 316
- Adding machines to a group 318
- Machine details 318
- Plans and tasks 320
- Inheritance order 323
- 7.1.3.2. Actions on groups 324
- Adding multiple criteria 325
- Move one group to another 327
- Editing custom groups 327
- Group details 327
- 7.1.4. Virtual machines 329
- Grouping of virtual machines 330
- • Host/VA 331
- 7.1.5. Storage nodes 333
- • Information panel 334
- Adding a storage node 336
- 7.1.6. Tasks 337
- 7.1.7. Log 339
- Configuring the log table 342
- 7.1.8. Reporting 343
- Generating reports 344
- Filters 344
- Report view 344
- Report coverage 347
- 7.1.8.8. Column selection 348
- 7.1.8.9. Report view 348
- Connection parameters 361
- Event tracing parameters 363
- When to modify 365
- What to back up 366
- Where to back up 366
- 7.3.1. Policy credentials 368
- 7.3.2. Items to back up 368
- 7.3.4. Exclusions 373
- 7.3.5. Archive 374
- 7.3.7.1. Back up now scheme 376
- 7.3.7.3. Simple scheme 377
- Resulting tasks 385
- 7.3.8. Archive validation 386
- Glossary 387
- Backup plan (Plan) 389
- Backup policy (Policy) 389
- Backup scheme 390
- Bootable agent 390
- Bootable media 390
- Built-in group 390
- Centralized backup plan 391
- Centralized management 391
- Centralized task 391
- Centralized vault 391
- Cleanup 392
- Consolidation 392
- Deduplicating vault 392
- Deduplication 392
- Direct management 393
- Disk backup (Image) 393
- Disk group 393
- Dynamic disk 394
- Dynamic group 394
- Dynamic volume 395
- Encrypted archive 395
- Encrypted vault 395
- Managed vault 397
- Media builder 397
- Personal vault 397
- Physical machine 397
- Storage node-side cleanup 399
- Storage node-side validation 399
- Tower of Hanoi 399
- Unmanaged vault 400
- Validation 400
- Validation rules 400
- Virtual machine 401
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