Why Oracle 11g need forcedirectio option? Post: 302559025

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Special Forums UNIX and Linux Applications Why Oracle 11g need forcedirectio option? Post 302559025 by radoulov on Monday 26th of September 2011 05:49:09 AM

09-26-2011

Registered User

The Oracle 11g documentation Checking NFS Mount and Buffer Size Parameters for Oracle Clusterware points to My Oracle Support bulletin 359515.1 which states:

Code:

Purpose

The purpose of this bulletin is to document the options with which the NAS systems should be mounted. 
This note does not cover the new dNFS feature that was introduced in 11g

They use the verb "should" (not "must"). From Request for Comments: 2119:

Code:

3. SHOULD   This word, or the adjective "RECOMMENDED", mean that there
   may exist valid reasons in particular circumstances to ignore a
   particular item, but the full implications must be understood and
   carefully weighed before choosing a different course.

That said, it's worth noting that all this applies to GI and RAC (it's not specified if it applies to a regular databases as well).

Hope this helps.

radoulov

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oci_server_version

OCI_SERVER_VERSION(3)													     OCI_SERVER_VERSION(3)

oci_server_version - Returns the Oracle Database version

SYNOPSIS

       string oci_server_version (resource  $connection)

DESCRIPTION

	Returns a string with the Oracle Database version and available options

PARAMETERS

	      o $connection
		-

RETURN VALUES

	Returns the version information as a string or FALSE on error.

EXAMPLES

       Example #1

	      oci_server_version(3) example

	      <?php

	      $conn = oci_connect("hr", "hrpwd", "localhost/XE");
	      echo "Server Version: " . oci_server_version($conn);

	      // Displays:
	      // Server Version: Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
	      // With the Partitioning, OLAP, Data Mining and Real Application Testing option

	      oci_close($conn);

	      ?>

NOTES

       Note

	       In  PHP	versions  before 5.0.0 you must use ociserverversion(3) instead. This old name still can be used. However it is deprecated
	      and not recommended.

SEE ALSO

       oci_client_version(3).

PHP Documentation Group 												     OCI_SERVER_VERSION(3)