Raw files in HP-UX are disk files that are not buffered by the
operating system. You can use HP-UX raw files instead of conventional
HP-UX files wherever ALLBASE/SQL requires you to
specify a physical filename for a DBEFile or log file.
Under some circumstances, the use of raw files can result in
improved performance.
This discussion of raw files presents some background on the HP-UX
file system before showing you
how to set up specific disk sections for use as raw files
in ALLBASE/SQL data definition. The following topics are presented:
Comparing Raw Files with HP-UX Buffered Files
Setting up Raw Files
Calculating Disk Space Needed for the File
Identifying Available Disk Sections
Preparing Raw Files for Exclusive Use by ALLBASE/SQL
Restoring Data or Moving Data to Raw Files
Tuning the ALLBASE/SQL Buffer Cache
Examples of Using Raw Files
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 | CAUTION:
The use of raw files carries with it the risk of corrupting an
HP-UX file system. For this reason, you should not attempt to
use raw files unless you possess a
high level of technical understanding of HP-UX file
concepts. You should also cooperate closely with a knowledgeable
HP-UX system administrator so as to avoid damage to your DBEnvironment
files or to the HP-UX system.
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