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If using Workstation Edition, the Client entry box at the top does not appear. If using Network Edition, you must
select the client for which to configure snapshots by pressing the arrow next to the Client name field. After
doing so, a list of logical volumes or ZFS datasets on that system will be displayed in the second listbox.
You must either select the individual logical volumes or ZFS datasets for which snapshots may be created, or
select “all”. If “all” is selected, snapshots will be permitted for all supported snapshot devices.
Again, you must also select to Perform Snapshot Backup? from the job configuration
screen before a snapshot of a logical volume or filesystem will be created.
The options which follow indicate the action the backup process should take when performing snapshot
backups:
1. Size(%):
For each logical volume (or for “all” if selected), indicate the size of the snapshot as a percentage of the
original LV. The size needed will depend on the amount of data that is changed within the original LV while
the backup is in progress. It is
very important to create the snapshot large enough that it does not run out of
space.
2. Chunk size (Kbytes) :
Use the arrow to the right of the entry field to list and select from a valid chunk size. Valid sizes are from 4
Kbytes to 1024 Kbytes (1 megabyte).
A “chunk” is the unit in which the original logical volume will be divided when tracking changes to the LV
when a snapshot is used. Each time a chunk is changed for the first time, the original chunk is copied to the
snapshot LV in its entirety, and then referred to in place of the original by the backup process.
When determining the best chunk size to use, there is a trade-off: The larger the chunk, the fewer writes to
the original LV it will take to fill up the snapshot LV (since larger chunks of data must be copied, even when
only a small piece of data is changed). The smaller the chunk, the more individual copies must occur as the
Storix System Backup Administrator 87 Version 8.2 User Guide
- SBAdmin User Guide 1
- Trademarks and Copyrights 2
- Publicly Available Software 2
- *Encryption Software 3
- Table of Contents 4
- 1. Getting Started 10
- Evaluation License Key 11
- Installing from CDROM 12
- Updating the Software 12
- Starting the Software 13
- Enabling Optional Features 14
- Initial TSM Setup 15
- 2. Introduction 16
- Understanding Backup Media 17
- Tape Devices 18
- Directory Devices 18
- NFS Backups 19
- TSM Backups 19
- Understanding Backup Types 20
- Interface 22
- Closing Windows 24
- 4. Users 25
- Removing a User 26
- Changing a User 26
- 5. Groups 28
- Changing a Group 29
- Removing a Group 29
- Switching Groups 29
- Using Groups 30
- 6. Clients 32
- Sparse File Handling 35
- Preserve File Access Times 35
- Removing a Client 36
- 7. Servers 38
- Configuring Server Devices 40
- Alternate Networks 40
- Adding a Shared NFS Server 41
- Adding a TSM Server 42
- TSM Server Name 43
- TSM Admin User ID/Password 43
- PASSWORDAccess 43
- Changing a Server 44
- Removing a Server 44
- 8. Backup Devices 46
- Sequential Autoloader 48
- Random Library 48
- Directory (Disk) Devices 49
- Maximum Volume Size 50
- Change a Backup Device 51
- Remove a Backup Device 51
- System Install Boot Disk 54
- 10. Backup Profile 56
- Buffer Size 57
- Incremental Backup Examples 62
- Changing a Backup Profile 64
- Removing a Profile 64
- 11. Random Tape Libraries 65
- Multiple Drive Libraries 66
- Standard Library Commands 67
- Custom Library Commands 68
- Define Drive/Tape Slots 69
- 12. Exclude Lists 70
- 13. Backup Jobs 73
- Selecting Clients to Backup 74
- Selecting the Data to Backup 75
- Selecting the Backup Media 75
- Additional Options 76
- Scheduling the Backup 77
- Changing a Backup Job 78
- Copying a Backup Job 79
- Renaming a Backup Job 79
- Removing a Backup Job 79
- Host Read Permission 82
- Copy Process Priority 82
- Retention Policy 82
- Scheduling the Copy 82
- The Copy Backup Job 83
- 14. Holidays 84
- 15. Snapshot Backups 86
- 16. Job Queues 89
- Monitoring Backups 90
- The Backup Output Display 91
- The Job Message Screen 93
- Manipulating Backup Jobs 94
- Restart a Job 95
- Remove a Job from the Queue 95
- Show Status/Output 95
- 17. Backup Labels 96
- View Backup Labels 97
- View by Backup ID 98
- View by Disk Label ID 98
- View by Tape Label ID 99
- View by Job ID 100
- View by Client 101
- Read from Server (Media) 102
- The Backup Sequence Number 103
- Expiring a Backup 103
- Manually Expiring a Backup 104
- View by Server 106
- 19. Verify a Backup 108
- Volumes or Filesystems 112
- Selecting Restore Options 121
- Selecting Data to Restore 122
- Search/Select by Name 123
- Select Using File Tree 124
- Common uses 129
- Source Media 130
- Destination Media 130
- Canceling the Operation 131
- 23. Preferences 132
- General Preferences 133
- Operating Systems Support 134
- Sound On/Off 134
- Fonts & Colors 134
- Check for Updates 136
- Network Options 136
- Report Options 137
- Backup Process Priority 139
- Concurrent Backups 140
- Backup Retention Policy 141
- Disk or TSM Backups 142
- Number of Backups to Retain 142
- Backup Status Notifications 143
- Alternate Notification 144
- Server/Device Error Handling 145
- 24. Calendar 147
- 25. Reports 148
- Restore History 150
- Backup Expiration Report 150
- Network Install Clients 151
- 26. Utilities 152
- Perform Tape Operations 154
- Move Tapes in Library 156
- Read Error Settings 159
- 27. Network Security 162
- Remote Installation Manager 163
- Encryption Keys 164
- 28. Getting Help 165
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