For which two purposes would you recommend an ASM clustered file system (ACFS)?
A. a shared home directory for Oracle database executables in a single-instance cluster for cold failover
B. a shared home directory for Oracle Grid Infrastructure executables
C. a root file system for the operating system
D. a shared file system for RAC data files
E. a general purpose shared file system for OS files
F. a clustered file system for OCR and voting disk files
Correct Answer: AE
Explanation/Reference:
Overview of Oracle ACFS
Oracle Automatic Storage Management Cluster File System (Oracle ACFS) is a multi-platform, scalable file system, and storage management technology that extends Oracle Automatic Storage Management (Oracle ASM) functionality to support customer files maintained outside of Oracle Database. Oracle ACFS supports many database and application files, including executables, database trace files, database alert logs, application reports, BFILEs, and configuration files. Other supported files are video, audio, text, images, engineering drawings, and other general-purpose application file data.
Notes:
Oracle ASM is the preferred storage manager for all database files. It has been specifically designed and optimized to provide the best performance for database file types. For a list of file types supported by Oracle ASM, see Table 7-1, "File types supported by Oracle ASM".
Oracle ACFS is the preferred file manager for non-database files. It is optimized for general purpose files.
Oracle ACFS does not support any file type that can be directly stored in Oracle ASM, except where explicitly noted in the documentation.
Not supported means Oracle Support Services does not take calls and development does not fix bugs associated with storing unsupported file types in Oracle ACFS.
Starting with Oracle Automatic Storage Management 11g Release 2 (11.2.0.3), Oracle ACFS supports RMAN backups (BACKUPSET file type), archive logs (ARCHIVELOG file type), and Data Pump dumpsets (DUMPSET file type). Note that Oracle ACFS snapshots are not supported with these files.
Oracle ACFS does not support files for the Oracle Grid Infrastructure home.
Oracle ACFS does not support Oracle Cluster Registry (OCR) and voting files.
Oracle ACFS functionality requires that the disk group compatibility attributes for ASM and ADVM be set to 11.2 or greater. For information about disk group compatibility, refer to "Disk Group Compatibility".
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