HOW TO SETUP ORACLE ON A RAW PARTITION

HOW TO SETUP ORACLE ON A RAW PARTITION
What is a Raw device and what is the advantage of having a Raw device?
A Raw device, or a Raw disk partition, is a hardware device that is
supported
by a character device driver.  Raw devices are not buffered by the kernel;
the data is transferred directly between the user's buffers and the device.
This direct transfer makes the I/O operation much faster when compared to
FAT
and NTFS file systems.  So, if you are I/O bound with your system, you may
want to locate your log and datafiles to RAW partitions to gain I/O
performance.
The trade-off of the raw partition choice is restricted configuration
options.  Each RAW partition equates to a single file and is represented by
a
single file which is then represented by a single drive letter.
How to create a RAW partition on Windows NT
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After the installation of Oracle on FAT or NTFS file systems, but before
creating the tablespaces that belong to datafiles, or putting the Log files
on RAW devices, we have to create the RAW partitions on Windows NT. In order
to do that, follow this procedure:
  1) Go into the "Disk Administrator" in the Administrative Tools.  If you
     already have free space there.  Single click on it.
NOTE:  If you don't have free space, you have to delete one of the
partitions
that you don't need anymore.  To do so, select the drive that you don't want
anymore, then select "Delete", under the "Partition" menu.
  2) Go to "Partition" menu and select "Create" in "Create Primary
Partition"
     screen.  Create the partition equal to the size of the file plus 1M,
     then click on OK.
  3) Do the same thing to create the new unformatted partitions for the
other
     fil