RE: Oracle RAC

  • From: Muqthar Ahmed <Muqthar.Ahmed@xxxxxxxxxxxxxxxxx>
  • To: "'peter.sharman@xxxxxxxxxx'" <peter.sharman@xxxxxxxxxx>, <pawan.dalmia@xxxxxxxxxxxxxxxxxxx>, <oracle-l@xxxxxxxxxxxxx>
  • Date: Tue, 21 Sep 2004 16:41:54 -0400

Peter,

Yes it works with Clustered file system but you have to spend extra dollars to 
buy the product.  I am aware of Clustered file system.  You can get more 
information from the following website:

http://www.veritas.com/Products/www?c=category&refId=120

Muqthar

-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On 
Behalf Of Pete Sharman
Sent: Tuesday, September 21, 2004 4:09 PM
To: Muqthar.Ahmed@xxxxxxxxxxxxxxxxx; pawan.dalmia@xxxxxxxxxxxxxxxxxxx; 
oracle-l@xxxxxxxxxxxxx
Cc: Peter Ross Sharman
Subject: RE: Oracle RAC


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

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