February 2011
Intermediate to advanced
294 pages
11h 53m
English
Content preview from Pro Data Backup and Recovery
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CHAPTER 8 ■ APPLICATION BACKUP STRATEGIES
175
Block-Level Backups
So when the backup policies become more complex, in the case of NetBackup, or the Index Cache
cannot keep up in CommVault, even when spread across multiple MediaAgents, what is left? This is
where the block-level backups are useful. A block-level backup tracks changed blocks within file systems
and provides backups of only those blocks, instead of entire files. (See Figure 8–3.) Restores of files are
made through the reassembly of blocks into files, transparently to the end user. The backups are faster
than file-level backups since the only things backed up are the blocks and the ...
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