Efficiency of UFS reads can be enhanced using tunefs to change
the file system dynamic parameters, which affects layout policies.
tunefs syntax is:
# tunefs [-amaxc] [-drotd] [-emaxb] [-mminf] [-oopt] [file_s]
tunefs works on both mounted and unmounted file systems, but changes
apply
only on unmounted file systems. Changes to the root file system take place
only after reboot.
tunefs can handle options to specify the dynamic parameters that affect
the disk partition layout policies as explained in the tunefs(8) reference
pages.