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2.10 Backing up RAID arrays (Linux)
Acronis Backup & Recovery 10 Agent for Linux can back up and recover Linux Software RAID devices
(known as multiple-disk devices or MD devices) and hardware RAID arrays.
Software RAID arrays
Software RAID arrays, or MD devices, combine several volumes and make solid block devices
(/dev/md0, /dev/md1, ..., /dev/md31), information of which is stored in /etc/raidtab or in dedicated
areas of those volumes.
Backup
You can back up active (mounted) software arrays in the same way as logical volumes. The arrays
appear at the end of the list of volumes available for backup.
Basic volumes included in software arrays are listed as if they had a corrupted file system or do
not have a file system at all. Backing up such volumes does not make sense when a software
array is mounted, as it won’t be possible to recover them.
Example
Here is an example of a volumes list obtained with the --list command. The GUI displays a similar
table.
The system has RAID-1 configured on two basic volumes: sdc1, sdd1.
Num Partition Flags Start Size Type
---- -------------------- ----------- ---------- ---------- -----------
Disk 1:
1-1 sda1 Pri,Act 63 208782 Ext3
1-2 sda2 Pri 208845 15550920 ReiserFS
1-3 sda3 Pri 15759765 1012095 Linux Swap
Disk 2:
Table 0 Table
Unallocated 1 16771859 Unallocated
Disk 3:
3-1 sdc1 Pri 63 16755732 Ext3
Unallocated 16755795 16065 Unallocated
Disk 4:
4-1 sdd1 Pri 63 16755732 None
Unallocated 16755795 16065 Unallocated
Disk 5:
Table 0 Table
Unallocated 1 16771859 Unallocated
Dynamic & GPT Volumes:
DYN1 md0 33511168 Ext3
Disk: 5 0 63
Disk: 4 0 63
You can back up the RAID array as follows:
trueimagecmd --create --partition:DYN1 --filename:/tmp/raid.tib --
progress:on
In the Graphical User Interface you can select the DYN1 check box.
- Advanced Server 1
- Table of contents 3
- 1.2 Getting started 8
- "Navigation" pane 11
- Shortcuts bar 12
- Actions 13
- Operations with panes 14
- Action pages 15
- Action page - Controls 16
- Navigation buttons 16
- 1.3.1 Agent for Windows 17
- 1.3.2 Agent for Linux 18
- Storage Node 19
- PXE Server 20
- License Server 20
- 1.4 Supported file systems 21
- Acronis License Server 22
- 10 Storage Node 22
- 1.6 System requirements 23
- 1.7 Technical support 24
- 2.1 Basic concepts 26
- Backup using bootable media 28
- Windows 30
- 2.3 Owners and credentials 31
- Full backup 32
- Incremental backup 33
- Differential backup 33
- 2.5 GFS backup scheme 34
- The resulting archive: ideal 36
- The resulting archive: real 36
- Tower of Hanoi overview 38
- Tower of Hanoi by Acronis 38
- 2.7 Retention rules 39
- 1. Delete backups older than 40
- Combination of rules 1 and 2 41
- Best practices 42
- Backing up dynamic volumes 42
- Recovering dynamic volumes 43
- Software RAID arrays 46
- 2.11 Tape support 47
- 2.12.1 Acronis Secure Zone 49
- Limitation 50
- Universal Restore) 51
- Usage scenarios 53
- How to use 53
- 2.13.1 Basic concepts 54
- Protecting the servers 57
- Protecting the workstations 58
- Static and dynamic groups 59
- Dynamic grouping criteria 59
- Using custom groups 59
- Policy on a machine 62
- Policy on a group 62
- Operations with a machine 63
- Inheritance of policies 64
- Policy status on a machine 67
- Policy status on a group 68
- 2.13.6 Deduplication 69
- How deduplication works 70
- Deduplication best practices 71
- Deduplication ratio 72
- Deduplication restrictions 72
- Local connection 73
- Remote connection 74
- Example 1 75
- Acronis security groups 76
- On a domain controller 77
- Rights for Acronis services 79
- Secure communication 80
- Remote Agent ports 81
- Client Encryption options 82
- Server Encryption options 82
- Network port configuration 83
- SSL certificates 84
- Self-signed certificates 85
- Non-self-signed certificates 85
- 3 Options 86
- 3.1.3 Time-based alerts 87
- 3.1.4 Number of tasks 87
- 3.1.5 Fonts 87
- 3.2.1 Logging level 88
- 3.2.2 Log cleanup rules 88
- 3.2.3 Event tracing 89
- 3.2.5 Acronis WOL Proxy 90
- 3.2.6 VM protection options 90
- 3.3 Machine options 91
- 3.3.1 Machine management 92
- 3.3.2 Event tracing 92
- 3.3.3 Log cleanup rules 94
- Archive protection 97
- Source files exclusion 98
- Pre-backup command 99
- Post-backup command 100
- Pre-data capture command 101
- Post-data capture command 101
- File-level backup snapshot 102
- Multi-volume snapshot 102
- Volume Shadow Copy Service 103
- Compression level 103
- Backup priority 104
- HDD writing speed 104
- Backup performance 104
- Network connection speed 105
- Notifications 105
- Messenger service (WinPopup) 106
- Event tracing 107
- Windows event log 107
- SNMP notifications 107
- Backup splitting 108
- File-level security 109
- Media components 110
- Error handling 110
- Dual destination 111
- Task start conditions 112
- Task failure handling 113
- Tape support 113
- Always use a free tape 114
- Additional settings 115
- Use FTP in Active mode 116
- Pre/Post commands 118
- Pre-recovery command 118
- Post-recovery command 119
- Recovery priority 119
- 4 Vaults 125
- 4.1 Centralized vaults 126
- Vault toolbar 127
- Pie chart with legend 127
- Vault content 127
- Vault path 130
- Vault database path 130
- Vault encryption 131
- Attaching a managed vault 132
- 4.1.3 Tape libraries 133
- Hardware 134
- Limitations 134
- RSM Media Pools 134
- Prerequisites 135
- Backing up to tape library 137
- Recovering from tape library 137
- Managing a tape library 138
- Inventory 138
- Labeling 139
- Tape rotation 141
- Choosing a backup scheme 141
- Criteria of the choice 142
- Case to analyze 142
- GFS Example 1 143
- GFS Example 2 146
- GFS Example 3 148
- ToH Example 1 149
- ToH Example 2 150
- ToH Example 3 151
- Tape planning 152
- Tape planning: Example 1 153
- Tape planning: Example 2 153
- What if 154
- 4.2 Personal vaults 155
- Creating a personal vault 157
- 4.3 Common operations 158
- To show or hide columns 161
- 5 Scheduling 162
- 5.1 Daily schedule 163
- first at 8 AM 164
- second at 12 PM (noon) 164
- third at 3 PM 164
- fourth at 5 PM 164
- fifth at 7 PM 164
- 5.2 Weekly schedule 165
- 5.3 Monthly schedule 167
- Examples 168
- Parameters 169
- Use Wake-On-LAN 171
- 5.6 Conditions 172
- 5.6.1 User is idle 173
- 5.6.3 Fits time interval 174
- 5.6.4 User logged off 175
- 6 Direct management 177
- Activities 178
- Tasks need interaction 179
- Backup plan execution states 180
- Backup plan statuses 180
- Task states 181
- Task statuses 182
- Backup plan (p. 192) 183
- Recovery task (p. 210) 183
- Validation task (p. 230) 183
- Run backup plan 187
- Task details 187
- Archive 188
- Settings 188
- Progress 188
- Backup plan details 189
- 6.1.3 Log 190
- Configuring the log table 191
- 6.2 Creating a backup plan 192
- What to backup 193
- Where to back up 193
- How to back up 193
- Archive validation 193
- Backup options 193
- Convert to VM 194
- 6.2.3 Source type 195
- 6.2.4 Items to back up 195
- Selecting disks and volumes 196
- Selecting files and folders 196
- 6.2.6 Exclusions 197
- 6.2.7 Archive 198
- 6.2.9 Backup schemes 200
- At a glance 201
- Description 201
- Tower of Hanoi scheme 204
- Roll-back period 205
- Custom backup scheme 206
- Resulting tasks 208
- 6.2.10 Archive validation 209
- 6.3 Recovering data 210
- General 211
- What to recover 211
- Where to recover 212
- When to recover 212
- Recovery options 212
- 6.3.1 Task credentials 213
- 6.3.2 Archive selection 213
- 6.3.3 Data type 214
- 6.3.4 Content selection 214
- 6.3.6 Destination selection 215
- Disk destination 216
- NT signature 217
- Volumes 217
- MBR destination 218
- Volume destination 218
- Volume properties 219
- Virtual machine settings 220
- File destination 221
- Recovery exclusions 221
- 6.3.8 When to recover 222
- 6.3.9 Universal Restore 222
- Preparation 223
- Universal Restore settings 223
- About Windows loaders 228
- What to validate 230
- 6.4.1 Task credentials 231
- 6.4.2 Archive selection 231
- 6.4.3 Backup selection 232
- 6.4.4 Location selection 232
- 6.4.6 When to validate 233
- 6.5 Mounting an image 234
- 6.5.2 Backup selection 235
- 6.5.3 Access credentials 235
- 6.6 Managing mounted images 236
- 6.7.1 Task credentials 239
- 6.7.2 Archive selection 239
- 6.7.3 Backup selection 240
- 6.7.5 Location selection 241
- 2. Using the archives table 242
- 3. Naming the new archive 242
- 6.8 Acronis Secure Zone 243
- Acronis Secure Zone Size 244
- Result confirmation 244
- Deleting Acronis Secure Zone 246
- 6.10 Bootable media 247
- Linux-based bootable media 248
- PE-based bootable media 248
- Kernel parameters 250
- Network settings 251
- Network port 252
- Setting up a display mode 256
- Linux commands and utilities 257
- Example 260
- Mounting backup volumes 261
- 6.10.6 Acronis PXE Server 262
- 6.11 Disk management 263
- 6.11.1 Basic precautions 264
- Starting the operations 265
- Displaying operation results 265
- 6.11.5 Disk operations 266
- Disk conversion: MBR to GPT 268
- Disk conversion: GPT to MBR 269
- System disk conversion 270
- 6.11.6 Volume operations 271
- Creating a volume 272
- Types of dynamic volumes 272
- Create volume wizard 273
- Select destination disks 273
- Set the volume size 274
- Set the volume options 274
- Delete volume 275
- Set active volume 276
- Change volume letter 276
- Change volume label 277
- Format volume 277
- 6.11.7 Pending operations 278
- 7 Centralized management 279
- 7.1.2 Backup policies 281
- Backup policy statuses 282
- Actions on backup policies 283
- Machines selection 284
- Policy details 285
- 7.1.3 Physical machines 286
- Actions on machines 287
- Applying policies 288
- Grouping actions 288
- Other actions 289
- Text file requirements 291
- Adding machines to a group 292
- Machine details 293
- Backup policies 294
- Plans and tasks 294
- Member of 297
- Hosted virtual machines 297
- Inheritance order 298
- Actions on groups 298
- To create a group 299
- Operating system 299
- Adding multiple criteria 300
- Move one group to another 301
- Editing custom groups 301
- Group details 302
- 7.1.4 Virtual machines 303
- VMware vCenter integration 305
- Support for vCenter clusters 307
- 7.1.5 Storage nodes 308
- Actions on storage nodes 309
- Adding a storage node 310
- Storage node details 310
- 7.1.6 Tasks 311
- 7.1.7 Log 313
- Local event log 314
- Centralized event log 314
- Actions on log entries 315
- 7.1.8 Reporting 317
- Report about the machines 318
- Report about the tasks 319
- Filters 320
- Report view 320
- Column selection 322
- Connection parameters 334
- Event tracing parameters 336
- When to modify 337
- What to back up 338
- 7.3.1 Policy credentials 340
- 7.3.2 Items to back up 341
- 7.3.4 Exclusions 345
- 7.3.5 Archive 346
- 2. Naming the archives 347
- Back up now scheme 348
- Back up later scheme 348
- Simple scheme 349
- 7.3.8 Archive validation 357
- Glossary 358
- Backup plan (Plan) 360
- Backup policy (Policy) 360
- Backup scheme 361
- Bootable agent 361
- Bootable media 361
- Built-in group 361
- Centralized backup plan 362
- Centralized management 362
- Centralized task 362
- Centralized vault 362
- Cleanup 362
- Disk backup (Image) 364
- Disk group 364
- Dynamic disk 365
- Dynamic group 365
- Dynamic volume 366
- Encrypted archive 366
- Encrypted vault 366
- Storage node-side validation 370
- Tower of Hanoi 370
- Windows Vista (PE 2.0) 372
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