Oracle disk manager7/14/2023 ![]() Table 3-3 Oracle RAC Shared File System Volume Size Requirements File Types Stored The user account with which you perform the installation ( oracle or grid) must have write permissions to create the files in the path that you specify. The file systems consist of at least two independent file systems, with the database files on one file system, and the recovery files on a different file system. If you choose to place your database files on a shared file system, then one of the following should be true: The disks used for the file system are on a highly available storage device, (for example, a RAID device).Īt least two file systems are mounted, and use the features of Oracle Clusterware 11 g release 2 (11.2) to provide redundancy for the OCR. If you choose to place your Oracle Cluster Registry (OCR) files on a shared file system, then Oracle recommends that one of the following is true: Log in to My Oracle Support at the following URL, and click the Certify tab to find a list of certified NAS devices. To use an NFS file system, it must be on a certified NAS device. To use a shared file system for Oracle Clusterware, Oracle ASM, and Oracle RAC, the file system must comply with the following requirements: If you do not have a storage option that provides external file redundancy, then you must configure at least three voting disk locations and at least three Oracle Cluster Registry locations to provide redundancy.ģ.2.1 Requirements for Using a Shared File System You cannot use prior Oracle ASM releases to do this. You can use Oracle ASM 11 g release 2 (11.2) to store Oracle Clusterware files. Use the following guidelines when choosing storage options: They can be added or removed after installation. Not supported by OUI or ASMCA, but supported by the software. Shared disk partitions (block devices or raw devices) Note: Direct NFS does not support Oracle Clusterware files. Table 3-1 Supported Storage Options for Oracle Clusterware and Oracle RAC Storage OptionĪutomatic Storage Management Cluster File System (ACFS) ![]() On new installations, using raw or block device partitions is not supported by Automatic Storage Management Configuration Assistant (ASMCA) or Oracle Universal Installer (OUI), but is supported by the software if you perform manual configuration. Raw or block devices are supported only when upgrading an existing installation using the partitions already configured. If you intend to use Oracle ASM with Oracle RAC, and you are configuring a new Oracle ASM instance, then your system must meet the following conditions:Īll nodes on the cluster have Oracle Clusterware and Oracle ASM 11 g release 2 (11.2) installed as part of an Oracle grid infrastructure for a cluster installation.Īny existing Oracle ASM instance on any node in the cluster is shut down. Oracle recommends that you choose Oracle ASM as the storage option for database and recovery files.įor Standard Edition Oracle RAC installations, Oracle ASM is the only supported storage option for database or recovery files. You can choose any combination of the supported storage options for each file type provided that you satisfy all requirements listed for the chosen storage options. Use the following guidelines when choosing the storage options to use for each file type: NFS mounts differ for software binaries, Oracle Clusterware files, and database files.ģ.1.2.2 General Storage Considerations for Oracle RAC Network File System (NFS): Note that if you intend to use NFS for your data files, then you should create partitions large enough for the database files when you create partitions for Oracle grid infrastructure. If you plan to install an Oracle RAC home on a shared OCFS2 location, then you must upgrade OCFS2 to at least version 1.4.1, which supports shared writable mmaps.ĪCFS provides a general purpose file system for other files.Ī supported shared file system: Supported file systems include the following: ![]() You can put Oracle Database binaries on Oracle ACFS. You cannot put Oracle Database files on Oracle ACFS. You cannot put Oracle Clusterware binaries and files on Oracle Automatic Storage Management Cluster File System (Oracle ACFS). Red Hat and Oracle Enterprise Linux 5, 64-bitįor OVM environments, Red Hat and Oracle Enterprise Linux 5 Update 4 or later is required. Red Hat and Oracle Enterprise Linux 5, 32-bit Note: For Oracle Automatic Storage Management (Oracle ASM) 11 g release 2 (11.2) for Linux, Oracle Automatic Storage Management Cluster File System (Oracle ACFS) and Oracle ASM Dynamic Volume Manager (Oracle ADVM) are only supported in the following environments:
0 Comments
Leave a Reply. |