Sorry, fundamental error in this. RAC DOES work with clustered file system= s as well, and has NEVER required raw files under real operating systems li= ke VMS. The raw requirement is purely and simply a Unix limitation, since = *nix can't share file systems without it until you get to the clustered fil= e systems that have recently come out. = Pete = "Controlling developers is like herding cats." Kevin Loney, Oracle DBA Handbook = "Oh no, it's not. It's much harder than that!" Bruce Pihlamae, long-term Oracle DBA -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] = On Behalf Of Muqthar Ahmed Sent: Wednesday, 22 September 2004 12:14 AM To: 'pawan.dalmia@xxxxxxxxxxxxxxxxxxx'; oracle-l@xxxxxxxxxxxxx Subject: RE: Oracle RAC Pawan, We have AIX (5.2), EMC storage, Oracle9i (9.2.0.5.0) RAC (3 nodes). Yes, R= AC works only with RAW files. = I use RMAN to backup Production database. I create development database us= ing Production backup(done by RMAN) in NON-RAC system. All my development = databases are using FILE SYSTEM (not RAW). RMAN backup is done at block-le= vel therefore it does not matter whether you are backing up RAW datafiles o= r FILE SYSTEM datafiles. Since RAW files name are not Oracle standand, I have created a SOFT LINK to= create datafiles. For example: RAW FILE: /dev/sys1_1024m /dev/rsys1_1024m DATAFILE (Soft Link): $ ln -s /dev/rsys1_1024m /u01/oracle/oradata/prod/prod_raw_system_1_1024m.= dbf Now my datafile name in Production database is /u01/oracle/oradata/prod/pro= d_raw_system_1_1024m.dbf. I strongly advise you to put the size in RAW file name because you can not = find out the size of RAW file. I am using OEM, you do not need any third party software. You have to know= lot of GV$ views. Muqthar Oracle9i Ceritified DBA -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] = On Behalf Of pawan.dalmia@xxxxxxxxxxxxxxxxxxx Sent: Tuesday, September 21, 2004 12:05 AM To: oracle-l@xxxxxxxxxxxxx Subject: Oracle RAC Hi We are implementing Oracle Apps 11.5.9(CRM). There will approx 1000 user = at any point of time. We are planning to implement Oracle 9i RAC. I am = sure that Common Storage (SAN etc)is mandatory for RAC but i am getting = contradictory views on whether raw file system is compulsary or not. List = = can u help me on this.Also if raw file system is manadatory then is there = any 3rd party tool avilable which can help in managing of file on raw file = = system taht is how can i see free space avilable on server , backup = commands other then dd.moving or copying of files etc Our platform is AIX 5.2 (P690 machines) and EMC storage box Regards Pawan Dalmia Oracle DBA-Business Intelligence Desk-566 Cell 9819718753 -- //www.freelists.org/webpage/oracle-l * * * * * * * * * The information contained in this E-mail message is privileged, confidentia= l, and may be protected from disclosure; please be aware that any other use= , printing,copying, = disclosure or dissemination of this communication may be subject to legal r= estriction or sanction. If you think that you have received this E-mail mes= sage in error, please = reply to the sender and delete it from your computer. Thank you. = -- //www.freelists.org/webpage/oracle-l -- //www.freelists.org/webpage/oracle-l