HP Data Protector Software Performance White Paper

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Creating millions of small files for HP-UX VxFS
The file system with millions of small files for HP-UX VxFS was created in a similar manner to
Windows. The file sizes were between 4 KB and 16 KB and the compressibility of the data 2:1.
The utility created an equal distribution of files in each directory.
Note: The number of files per directory was set to 120 due to limitations of L&TT version 4.2
SR1a. The restore pre-test was executed six times in order to achieve a HP-UX VxFS layout
which was similar to the Windows NTFS layout as described in the previous section
Creating
millions of small files for Windows NTFS. In later L&TT releases, the number of files should be
increased to 750.
Figure 20 illustrates the L&TT input parameters and Figure 21 the results.
Figure 20. Library and Tape Tools Diagnostics for HP-UX – creating small files – input parameters
Figure 21. Library and Tape Tools Diagnostics for HP-UX – creating small files – results
Finally, the file system contained 47.29 GB with 5,314,320 files in 44,286 folders.