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Linux OCFS - Best Practices (Doc ID 237997.1)

Last updated on APRIL 16, 2020

Applies to:

Oracle Database - Enterprise Edition
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
UnitedLinux (32-bit)
Linux x86
Red Hat Advanced Server
Red Hat Enterprise Linux Advanced Server Itanium
UnitedLinux Itanium
***Checked for relevance on 30-DEC-2009***
***Checked for relevance on 23-Oct-2011***
***Checked for relevance on 27-Mar-2013***


The purpose of this article is to provide best practice guidelines for installing and using Oracle Cluster File System (OCFS) on Linux.


The article is intended for anyone (System Administrators, Database Administrators or users) who are planning to install and use OCFS on Linux. This article applies to users of Red Hat Linux Advanced Server 2.1 (RHAS2.1), Red Hat Enterprise Linux 3 (RHEL3), SuSE Enterprise Linux 8 (SLES8) and other supported Linux distributions.


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In this Document
 1. Why Use OCFS?
 2. Configuring Linux For OCFS
 3. File Types Supported by OCFS
 4. Selecting an OCFS Blocksize
 5. Calculating an OCFS Partition Size
 6. Separate Files Across Partitions
 7. Volume Fragmentation
 8. Performance
 9. Support for Mount by Label
 10. Sample Configuration and Layout
 11. Checking for Mounted Volumes
 12. Troubleshooting
 13. How to Obtain OCFS for Linux

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