Grid below: various UNIX users for grid and databases?

Hello

I am trying to install 11 GR 2 + (Standard Edition 11.2.0.3) + with the grid Infrastructure (we use ASM) on a brand new RHEL5 (64B).
When I'm done with this one I'll have to do the 'same' several regional advisory councils of 2 knots and other single-instances.

As stated in the official documentation, I created 2 separate unix, named grid and oracleusers.
-Grid is the owner of the grid below
-Oracle is the owner of the RDBMS
+(They both have oinstall As Primary Group) +.

They both share the same ORACLE_BASE (that is + / oracle + in my case)
But as this directory was created by the user to the network (with umask 022), the oracle user does not have permission to write to this directory.

Therefore, the installation of RDBMS is a failure (so I added the write privilege to the user oracle on ORACLE_BASE)
I also had to give the privilege of writing on c++ / oracle / product + and + / oracle / cfgtoollogs + to go throught RDBMS installation and dbca.
Now, when Nicole netca, she complains c++ / oracle/cfgtoollogs/netca +...

Just to illustrate, it is that the c++ / oracle + is currently:
$ ls -l /oracle/
total 60
drwxrwx---  5 grid   oinstall  4096 Mar 19 10:45 admin
drwxrwxr-x  7 grid   oinstall  4096 Mar 15 17:31 cfgtoollogs
drwxr-xr-x  2 grid   oinstall  4096 Mar  9 18:21 checkpoints
drwxr-xr-x  2 grid   oinstall  4096 Mar  9 18:16 Clusterware
drwxrwxr-x 11 grid   oinstall  4096 Mar 12 12:23 diag
drwxrwxr-x  2 oracle oinstall 16384 Feb 20 15:36 lost+found
drwxrwx---  6 grid   oinstall  4096 Mar 12 18:55 oraInventory
drwxrwxr-x  3 grid   oinstall  4096 Mar  9 18:12 product
drwxr-xr-x  3 grid   oinstall  4096 Mar  9 18:16 sodbdd28
drwxrwxr-x 10 oracle oinstall  4096 Mar 12 18:00 sources
Of course, it's no big deal and I might be chmod-ing occur each directory to which this question, but I feel "bad practices."
We are talking about production machines that I might have to administer for some time and I don't want to "bolt" or "poorly designed" day 1.

I saw him on most of the installation of RAC 11 GR 2, her infra grid and RDBMS have been installed on the same user unix (oracle), which makes administration easier.

What I want to know is:
-What is the best of a +(by DBA I mean in charge of both ASM and databases) point of view s/n +.
-There's an official paper which recommends to NOT to serve distinct user grid infra and RDBMS +(or at least something to say wheither it's safe/supported or not to use a single user) +.

Thanks in advance to all who will have on their time to help me.

Hello

Wouldn't be safe / smart to opt for a single unix users, always have different home for GridInfra and RDBMS?

Have different OH (ORACLE_HOME) on the GRID (clusterware) and RDBMS is required. Have different OB (ORACLE_BASE) on the GRID and RDBMS is recommended by Oracle, but you have a possibility to place the GRID and RDBMS on OB. even

If the issue is users:

It really depends on how and who will manage your Cluster environment. I believe that for every choice, we have a reason for this choice.

So, if you have a cluster with many users of OS (operator / DBA / Sysadmin) access to this system... I recommend you to use Job separation of roles, this keep your environment more organized and secure.

But if the user (Sysadmin/DBA) who will be responsible for administering the Oracle database is the same who will manage the grid... I don't get to use the separation of job roles.

Although for use separation job roles really made a difference for that access through the BONE Cluster resources and ASM... With respect to the binary installation only root has privileges to change.
In the Oracle introduced 11.2 security version that protects Network Infrastructure installation binary files. This prevents unnecessary changes or access to the OH.
Change the binary files of the grid infrastructure, to unlock this ORACLE_HOME with root privileges.
If this security should not be applied to ORACLE_BASE of Installation of the grid. Because this ORACLE_HOME of the GRID must be off ORACLE_BASE. (The documentation does not explain it, suffice it to say that the OB should stay out of the OH)

P.S/maisons/Oracle Grid Infrastructure for a stand-alone server (Oracle Restart) can be under the Oracle base.

{message: id = 10124133}

http://levipereira.WordPress.com/2011/07/01/modifying-Oracle-clusterwarerestart-binaries/

Kind regards
Levi Pereira

Published by: Levi Pereira on 19 March 2012 18:55

Tags: Database

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