u01 was just a suggestion. Read the original OFA document for a full explanation. The idea was that these were non-connotative mount point names that would accommodate any content in their directory trees. If you didn't do it this way, and needed space to install a new application, and the only mount point with free space was /oracle, you'd at least be sowing a little confusion by having something unrelated to oracle stored on a filesystem that seemed to be dedicated to Oracle. Of course, the wide availability of SANs and easily carvable and extendable logical volumes make this much less necessary now. OFA was created in the days of individually mounted disk drives. Paul Baumgartel UBS AG IB Accounting Solutions 400 Atlantic Street Stamford, CT 06904 203.719.4368 paul.baumgartel@xxxxxxx www.ubs.com ________________________________ From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Frits Hoogland Sent: Tuesday, May 11, 2010 3:54 PM To: Freek.DHooge@xxxxxxxxx Cc: ORACLE-L Subject: Re: a quick poll regarding the 11gR2 OFA I use '/oracle' for all Oracle things. This makes it very easy for sysadmins to spot the location of 'the oracle stuff'. There are some other locations (/var/tmp/.oracle, /etc/oracle, /opt/oracle) which are used by (some) oracle products. As been stated earlier, my personal opinion is '/u01' is non-intuitive and non-descriptive, and the default path of the oracle home '/u01/app/oracle/product/<some part of the version>' is *way* to deep. As far as I know, OFA is not about a specific path, but about a flexible layout for your database. I've written about a structure wit '/oracle' about 4 years ago, which I called 'SOFA': Request for Comment: SOFA, Second generation Oracle Flexible Architecture <http://fritshoogland.wordpress.com/2006/04/12/request-for-comment-sofa-second-generation-oracle-flexible-architecture/> Anyone know any history of '/u01'? I guess it was used in the past to have a second '/usr' on a separate mountpoint, to have a clear place which holds the database software. If so, /u02 and further for the datafiles and other database files is really bogus. frits On May 11, 2010, at 2:08 PM, D'Hooge Freek wrote: A quick poll. The 11gR2 linux OFA version seems to push to use a directory such as ?/u01/?? instead of ?/opt/oracle/? Which directory are you currently using? Are you going to change your directory structure to match this new OFA structure? Regards, Freek D'Hooge Uptime Oracle Database Administrator email: freek.dhooge@xxxxxxxxx tel +32(0)3 451 23 82 http://www.uptime.be disclaimer: www.uptime.be/disclaimer -- http://www.freelists.org/webpage/oracle-l
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