create_fastlinks.5 (2010 09)

c
create_fastlinks(5) create_fastlinks(5)
(Tunable Kernel Parameters)
NAME
create_fastlinks - configure the system to use fast symbolic links
VALUES
Minimum
0
Maximum
1
Default
0
Specify integer value.
DESCRIPTION
When
create_fastlinks
is nonzero, it causes the system to create HFS symbolic links in a manner
that reduces the number of disk-block accesses by one for each symbolic link in a path name lookup. This
involves a slight change in the HFS disk format, which makes any disk formatted for fast symbolic links
unusable on Series 700 systems prior to HP-UX Release 9.0 and Series 800 systems prior to HP-UX
Release 10.0 (this configurable parameter was present on Series 700 Release 9.0 systems, but not on
Series 800 HP-UX 9.0 systems).
To provide backward compatibility, the default setting for
create_fastlinks is zero, which does not
create the newer, faster format. However, all HP-UX 10.0 kernels (and all Series 700 HP-UX 9.0 ker-
nels) understand both disk formats, whether "create_fastlinks" is set to zero or non-zero.
WARNINGS
All HP-UX kernel tunable parameters are release specific. This parameter may be removed or have its
meaning changed in future releases of HP-UX.
Installation of optional kernel software, from HP or other vendors, may cause changes to tunable parame-
ter values. After installation, some tunable parameters may no longer be at the default or recommended
values. For information about the effects of installation on tunable values, consult the documentation for
the kernel software being installed. For information about optional kernel software that was factory
installed on your system, see HP-UX Release Notes at
http://www.hp.com/go/hpux-core-docs
.
AUTHOR
create_fastlinks
was developed by HP.
SEE ALSO
kctune(1M).
HP-UX 11i Version 3: September 2010 − 1 − Hewlett-Packard Company 1