IBM E16RMLL-I - Tivoli Storage Manager, Руководство по внедрению

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Chapter 2. Implementation planning
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At this point, it is very important that you consider your backup and restore
requirements so that you can match the Tivoli Storage Manager features to your
needs. Since statistics show that the majority of user restore requests are for
single files or other small amounts of data, the Tivoli Storage Manager file-level
backup is the foundation of any recovery strategy. However, there are additional
methods to cover your data restore requirements more completely.
Tivoli Storage Manager provides the following backup methods:
򐂰
File-level backup: Good for small and ad-hoc file or directory restores, but
may not be the optimal solution for large-volume restores.
򐂰 Logical volume backup: Good for large full restores, but only available on
UNIX and Windows, and not for single file restores.
򐂰
Backup sets: Good for remote and portable restores.
Figure 2-1 shows some possible generic scenarios. Of course, you can combine
those in different ways to fit your own requirements.
Figure 2-1 Tivoli Storage Manager backup/restore scenarios
Due to the nature and complexity of customer environments and requirements,
our planning description will give the building blocks for your own environment
definition. The tables and calculations take into account the backup, archive,
Server Client
2
1
3
3. Progressive incre periodical
image
backup
Fast restore in case of disaster recovery
scenario
Unique command to restore at the point
in time
2. Logical volume backup (UNIX)
Restore of raw devices and full logical
volumes
1. Progressive incremental backup and
archive function
File-level granularity of restore
Integrated backup/restore scenarios
QIC-5010 Data Cartridge IBM
QIC-5010 Data Cartridge IBM
QIC-5010 Data Cartridge IBM
Backup sets
Portable, Lan-free restore