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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii" /> <meta http-equiv="Content-Style-Type" content="text/css" /> <meta http-equiv="Content-Script-Type" content="text/javascript" /> <title>Required Operating System Users and Groups</title> <meta name="generator" content="Oracle DARB XHTML Converter (Mode = ohj/ohw) - Version 5.1 Build 135" /> <meta name="date" content="2009-06-04T14:31:50Z" /> <meta name="robots" content="noarchive" /> <meta name="doctitle" content="Required Operating System Users and Groups" /> <meta name="relnum" content="11g Release 2 (11.2)" /> <meta name="partnum" content="E10743-01" /> <link rel="copyright" href="./dcommon/html/cpyr.htm" title="Copyright" type="text/html" /> <link rel="stylesheet" href="./dcommon/css/blafdoc.css" title="Oracle BLAFDoc" type="text/css" /> <link rel="contents" href="toc.htm" title="Contents" type="text/html" /> <link rel="prev" href="preparing002.htm" title="Previous" type="text/html" /> <link rel="next" href="preparing004.htm" title="Next" type="text/html" /> <script src="./callback.js" type="text/javascript"></script> <noscript>Your browser does not support JavaScript. This help page requires JavaScript to render correctly.</noscript> </head> <body> <div class="zz-skip-header"><a href="#BEGIN">Skip Headers</a></div> <table class="simple oac_no_warn" summary="" cellspacing="0" cellpadding="0" width="100%"> <col width="86%" /> <col width="*" /> <tr valign="bottom"> <td align="left"></td> <td align="center"><a href="preparing002.htm"><img src="./dcommon/gifs/leftnav.gif" alt="Previous" /><br /> <span class="icon">Previous</span></a> </td> <td align="center"><a href="preparing004.htm"><img src="./dcommon/gifs/rightnav.gif" alt="Next" /><br /> <span class="icon">Next</span></a></td> </tr> </table> <p><a id="TDPRC130" name="TDPRC130"></a></p> <div class="sect3"><!-- infolevel="all" infotype="General" --><a id="sthref86" name="sthref86"></a> <h1>Optional Operating System Users and Groups</h1> <a name="BEGIN" id="BEGIN"></a> <p>You can create additional users and groups to divide administrative access privileges to the Oracle Grid Infrastructure installation from other administrative users and groups associated with other Oracle installations. Separating administrative access is implemented by specifying membership in different operating system groups, and separating installation privileges is implemented by using different installation owners for each Oracle installation.</p> <p>The optional users and groups you can create are:</p> <ul> <li> <p><a id="sthref87" name="sthref87"></a><a id="sthref88" name="sthref88"></a>The OSASM group (for example, <code>asm</code>) for Automatic Storage Management (ASM) authentication. If this option is not chosen, then <code>dba</code> is the default OSASM group.</p> </li> <li> <p>The OSDBA group for ASM (typically <code>asmdba</code>). Members of the OSDBA group for ASM are granted read and write access to files managed by ASM. The Oracle database software owner (typically <code>oracle</code>) must be a member of this group, and all users with OSDBA membership on databases that you want to have access to the files managed by ASM should be members of the OSDBA group for ASM</p> </li> <li> <p><a id="sthref89" name="sthref89"></a><a id="sthref90" name="sthref90"></a>The OSOPER group for Oracle Database (typically, <code>oper</code>). Create this group if you want a certain operating system users to have a limited set of database administrative privileges (the <code>SYSOPER</code> privilege). Members of the OSDBA group automatically have all privileges granted by the <code>SYSOPER</code> privilege.</p> </li> </ul> <div class="helpinfonote"> <p><span class="bold">Note: </span>Each Oracle software owner must be a member of the same central inventory group. You cannot have more than one central inventory group on a server.</p> </div> <p>By using different operating system groups for authenticating administrative access to each Oracle Database installation, members of the different groups have SYSDBA privileges for only one database, rather than for all the databases on the system. Also, if you configure a separate operating system group for ASM authentication, then you can have users that have SYSASM access to the ASM instances but do not have SYSDBA access to the database instances.</p> <div class="helpinfonote"> <p><span class="bold">Note: </span>If installing Oracle RAC on Microsoft Windows, Oracle Universal Installer does not create an <code>ORA_ASM</code> group for authenticating SYSASM access. You must create this group manually.</p> </div> </div> <!-- class="sect3" --> <!-- class="sect2" --> <!-- Start Footer --> <div class="footer"> <table class="simple oac_no_warn" summary="" cellspacing="0" cellpadding="0" width="100%"> <col width="86%" /> <col width="*" /> <tr> <td align="left"><span class="copyrightlogo">Copyright © 2006, 2009, Oracle and/or its affiliates. All rights reserved.</span><br /> <a href="./dcommon/html/cpyr.htm"><span class="copyrightlogo">Legal Notices</span></a></td> <td align="center"><a href="preparing002.htm"><img src="./dcommon/gifs/leftnav.gif" alt="Previous" /><br /> <span class="icon">Previous</span></a> </td> <td align="center"><a href="preparing004.htm"><img src="./dcommon/gifs/rightnav.gif" alt="Next" /><br /> <span class="icon">Next</span></a></td> </tr> </table> </div> <!-- class="footer" --> </body> </html>
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