Advanced Backup to Disk Performance White Paper

File Library
The HP OpenView Storage Data Protector Advanced Backup to Disk license (terabyte-based) enables
the MSA1500 to be configured as a “file library,” so the initial backup from MSA1000 to MSA1500
takes place as a normal backup job with the file library being specified as the destination. The file
library can be configured in much the same way as a tape device, with block size, segment count,
disk buffers, and so on. It is important to realize that the backup file created on the MSA1500 is for
all intent and purpose a tape image file. The benefit of this will be seen later when examining small
file backup performance.
Using HP OpenView Storage Data Protector Advanced Backup to Disk, the migration of the backup
on the MSA1500 to tape is executed by means of a “copy” style function. It can be interactive
(manual) or scheduled to occur at a certain time or even directly after the initial backup to the
MSA1500 has completed.
Two file libraries (“FileLibrary”, “FileLibrary10GB”) are created with different maximum file depot
sizes (10, 50 GB).
Figure 9. File Library Configuration – Directories and Drives
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