Re: Raw Devices: Increased Performance?

joelga_at_rossinc.com (Joel Garry) wrote:
>In article <31C9F801.33AB_at_tpg.tpg.oz.au> Jo Manna <jgm_at_tpg.tpg.oz.au> writes:
>>I am fairly new to Oracle and am
>>trying get some info on what performance
>>increases (if any) I can expect by using
>>a raw device as apposed to a unix file system.
>Personally, I think the one time that someone unthinkingly writes over
>the raw system will more than make up for any increase. In other words,
>it requires greater control over administration than any place can be
>expected to have over a long period of time.

Whereas, of course, people never accidentally remove files from a UNIX file system.... Provided your sys admin is 'fit for purpose' then I don't see that files are any more or less likely to be trashed than raw devices. Of course, it helps if your OS has some form of LVM so that you can give 'raw devices' meaningful names.

Gary

-- 
_____________________________________________________________________
Gary Walsh                         E-mail: Gary_Walsh_at_spire.hds.co.uk
Open Systems Product Specialist    Phone:  +44 1753 618806
Hitachi Data Systems Europe        Disclaimer: My views, not HDS'