Chapter 3 Reviewing Operating System and Software Upgrade Best Practices 3 3

Chapter 3 reviewing operating system and software

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Chapter 3 Reviewing Operating System and Software Upgrade Best Practices 3-3
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See Also: Oracle Database Upgrade Guide to review the Export/Import method for migrating data and upgrading Oracle Database Oracle ASM Upgrade Notifications Be aware of the following issues regarding Oracle ASM upgrades: You can upgrade Oracle Automatic Storage Management (Oracle ASM) 11 g release 2 (11.2) and later without shutting down an Oracle RAC database by performing a rolling upgrade either of individual nodes, or of a set of nodes in the cluster. However, if you have a standalone database on a cluster that uses Oracle ASM, then you must shut down the standalone database before upgrading. The location of the Oracle ASM home changed in Oracle Grid Infrastructure 11 g release 2 (11.2) so that Oracle ASM is installed with Oracle Clusterware in the Oracle Grid Infrastructure home (Grid home). Two nodes of different releases cannot run in the cluster. When upgrading from Oracle Grid Infrastructure 11 g release 2 (11.2) or Oracle Grid Infrastructure 12 c release 1 (12.1) to a later release, if there is an outage during the rolling upgrade, then when you restart the upgrade, ensure that you start the earlier release of Oracle Grid Infrastructure and bring the Oracle ASM cluster back in the rolling migration mode. Reviewing Operating System Security Common Practices Secure operating systems are an important basis for general system security. Ensure that your operating system deployment is in compliance with common security practices as described in your operating system vendor security guide. About Installation Fixup Scripts Oracle Universal Installer detects when the minimum requirements for an installation are not met, and creates shell scripts, called fixup scripts, to finish incomplete system configuration steps. If Oracle Universal Installer detects an incomplete task, then it generates fixup scripts ( runfixup.sh ). You can run the fixup script and click Fix and Check Again . The fixup script modifies both persistent parameter settings and parameters in memory, so you do not have to restart the system. The Fixup script does the following tasks: Sets kernel parameters, if necessary, to values required for successful installation, including: Shared memory parameters. Open file descriptor and UDP send/receive parameters. Creates and sets permissions on the Oracle Inventory (central inventory) directory. Chapter 3 Reviewing Operating System Security Common Practices 3-4
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Creates or reconfigures primary and secondary group memberships for the installation owner, if necessary, for the Oracle Inventory directory and the operating system privileges groups. Sets shell limits, if necessary, to required values. Note: Using fixup scripts does not ensure that all the prerequisites for installing Oracle Database are met. You must still verify that all the preinstallation requirements are met to ensure a successful installation.
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