Who has opinions or experience with the following:
Older unices had insecure file systems so Sybase decided to bypass the OS
and directly access the disk through the raw device driver. The mapping
of the device driver to disk used te be fairly direct.
More modern Unices have logical volumes with raw logical devices , an sometimes
other features like disk mirroring ( on the OS level ).
Writing to a raw logical device does not bypass the OS but has to go through
the logical volume manager, diskmirroring manager ( layer ).
If you use a file on a file system all you add is 1 extra layer.
Wat are the advantages, disadvantages if a journaled file system (veritas) is
used instead of a raw logical device.
Sybase still recommends raw logical device instead of a filesystem.
I have to decide what to use on HPUX 10.01 files on an VXFS files system or
raw logical volumes.
In the past I used always to start with raw devices but ended using a mix
of raw devices and and file just to get the space needed.
#include <stddisclaimer.h> This might not be the view of my employer.