Changes in This Release for Oracle Automatic Storage Management Administrator's Guide

This chapter describes changes in Oracle Automatic Storage Management Administrator's Guide.

Changes in Oracle Automatic Storage Management 12c Release 2 (12.2.0.1)

The following are changes in Oracle Automatic Storage Management 12c Release 2 (12.2.0.1).

New Features

These are new features for Oracle ASM 12c Release 2 (12.2.0.1):

Oracle ASM Flex Disk Groups

Oracle ASM provides database-oriented storage management with Oracle ASM flex and extended disk groups. For information about Oracle ASM flex disk groups, extended disk groups, and file groups, refer to Managing Oracle ASM Flex Disk Groups.
Prioritized Rebalancing for Oracle ASM File Groups

Oracle ASM file groups have the ability to set priority levels for rebalancing with the PRIORITY property.

For information about Oracle ASM file group properties, refer to About Oracle ASM File Group Properties.
Oracle ASM Support for Preferred Read on Extended Clusters

An Oracle extended cluster is special purpose Oracle flex cluster which contains nodes that span multiple physically separated locations. An Oracle flex cluster is a scalable cluster in which servers can be assigned specific roles for database or application functions.

In an Oracle extended cluster, the PREFERRED_READ.ENABLED disk group attribute controls whether preferred read functionality is enabled for a disk group. If preferred read functionality is enabled, then this functionality enables an instance to determine and read from disks at the same site as itself, which can improve performance. For information about the PREFERRED_READ.ENABLED disk group attribute, refer to PREFERRED_READ.ENABLED.
Oracle ASM Extended Support for 4K Sector Size

This features provides the new disk group attribute LOGICAL_SECTOR_SIZE. This attribute sets the logical sector size of the disk group instead of the size that is estimated from the disks that are added to the disk group. The value specifies the smallest possible I/O that the disk group can accept, and also limits what kind of disks can join the disk group. A new column LOGICAL_SECTOR_SIZE is included in the V$ASM_DISKGROUP and V$ASM_DISK views. This column represents the logical sector size value of the disk group or disk in bytes.

For information about extended support for 4K sector size, refer to Specifying the Logical and Physical Sector Size.
Oracle IOServer

An Oracle IOServer (IOS) instance provides Oracle ASM file access for Oracle Database instances on nodes of Oracle member clusters that do not have connectivity to Oracle ASM managed disks.

For information about remote Oracle IOServer and Oracle Flex ASM, refer to Managing Oracle Flex ASM.
Updates for Oracle ASM Filter Driver Installation and Configuration

The installation and configuration for Oracle ASM Filter Driver (Oracle ASMFD) can now be enabled as an automated process during Oracle Grid Infrastructure installation.

Oracle ASMFD is available on Solaris systems starting with Oracle Database 12c Release 2 (12.2.0.1).

For more information about Oracle ASMFD, refer to "Administering Oracle ASM Filter Driver".

Deprecated Features

These are deprecated features for Oracle ASM 12c Release 2 (12.2.0.1).

Deprecation of Oracle ASM Intelligent Data Placement

The Oracle ASM Intelligent Data Placement (IDP) feature has been deprecated in Oracle ASM 12c Release 2 (12.2) and may be desupported in a future release.

For information about IDP, refer to Intelligent Data Placement.
Deprecation of ASM_PREFERRED_READ_FAILURE_GROUPS Initialization Parameter

The ASM_PREFERRED_READ_FAILURE_GROUPS initialization parameter has been deprecated in Oracle ASM 12c Release 2 (12.2) and may be desupported in a future release.

In Oracle ASM 12c Release 2 (12.2), specifying the preferred read failure groups is done automatically, so the use of the ASM_PREFERRED_READ_FAILURE_GROUPS initialization parameter is no longer required. Starting with Oracle ASM 12c Release 2, the PREFERRED_READ.ENABLED disk group attribute controls whether the preferred read functionality is enabled.

For information about the ASM_PREFERRED_READ_FAILURE_GROUPS initialization parameter, refer to ASM_PREFERRED_READ_FAILURE_GROUPS. For information about the PREFERRED_READ.ENABLED disk group attribute, refer to PREFERRED_READ.ENABLED.

Changes in Oracle ACFS and Oracle ADVM for Oracle ASM 12c Release 2 (12.2.0.1)

The following are changes to Oracle Automatic Storage Management Cluster File System (Oracle ACFS) and Oracle ASM Dynamic Volume Manager (Oracle ADVM) for Oracle ASM 12c Release 2 (12.2.0.1).

New Features

These are new features for Oracle ACFS and Oracle ADVM in Oracle ASM 12c Release 2 (12.2.0.1).

Oracle ACFS Snapshot-Based Replication

Oracle ACFS snapshot-based replication transfers the differences between successive snapshots of the primary file system to the standby file system using the standard ssh protocol.

For an overview of Oracle ACFS snapshot-based replication, refer to Oracle ACFS Replication. For information about Oracle ACFS replication commands, refer to Oracle ACFS Command-Line Tools for Replication.

For information about converting an existing Oracle ACFS replication environment to snapshot-based replication, refer to Configuring Oracle ACFS Snapshot-Based Replication.

Note:

For information about the previous Oracle ACFS replication system available in Oracle Grid Infrastructure release 1 (12.1), refer to Oracle Automatic Storage Management Administrator's Guide in the Database Online Documentation 12c Release 1 (12.1) library.
Oracle ACFS Snapshot Enhancements

Oracle ACFS snapshot enhancements include acfsutil operating system commands to create and manage snapshot duplicates. Additional commands provide support for remastering, renaming, and setting quotas for snapshots.

For information about Oracle ACFS snapshots, refer to About Oracle ACFS Snapshots. For information about acfsutil commands to manage Oracle ACFS snapshots, refer to Oracle ACFS Command-Line Tools for Snapshots.
Oracle ACFS Compression

Oracle ACFS provides file system compression functionality with acfsutil compress commands.

Note:

Oracle ACFS compression is not supported on Oracle Database files. Oracle ACFS file systems which are intended to hold database files should not be compressed with Oracle ACFS compression.

For information about Oracle ACFS compression, refer to Oracle ACFS Compression.
Oracle ACFS Defragger

Databases that share storage with snapshots or with the base of the file system can become fragmented under active online transaction processing (OLTP) workloads. This fragmentation can cause the location of the data in the volume to be discontiguous for sequential scans. Oracle ACFS automatically defragments these files in the background. Fragmentation is reported through the acfsutil defrag dir and file commands, and it can also be viewed with the acfsutil info file command. The acfsutil defrag dir and file commands also enable on-demand defragmentation of a file in the event the automatic defragmentation does not occur quickly enough. Defragmentation may also be needed when database data files reside in file systems enabled with Oracle ACFS compression.

For more information about database files on Oracle ACFS, refer to "About Oracle ACFS and Database Data Files". For information about the acfsutil defrag and acfsutil info commands, refer to Oracle ACFS Command-Line Utilities.
Oracle ACFS Support for 4K Sectors

Oracle ACFS supports I/O requests in multiples of 4K logical sector sizes as well as continued support for 512-byte logical sector size I/O requests. The i 4096 option is provided with the acfsformat command on Windows and the mkfs command in AIX, Linux and Solaris environments.

For information about the Oracle ACFS mkfs command on Linux, refer to mkfs. For information about the Oracle ACFS acfsformat command, refer to acfsformat.
Oracle ACFS Automatic Resize

Oracle ACFS provides an automatic resize option with theacfsutil size command that enables you to specify an increment by which an Oracle ACFS file system grows automatically if the amount of available free space in the file system falls below a specified amount. There is also an option to specify the maximum size allowed when using the automatic resize option. The output of the acfsutil info fs command displays the automatic resize increment and maximum amounts.

For more information about the acfsutil size command, refer to acfsutil size.
Oracle ACFS Metadata Acceleration

Oracle ACFS supports accelerator metadata storage. This support enables many critical Oracle ACFS metadata structures, including extent metadata, storage bitmaps, volume logs, and some snapshot metadata to be placed on accelerator storage.

The accelerator volume can be created on Linux environments with the -a option of the mkfs command. To use the -a option, the value of COMPATIBLE.ADVM must be at least 12.2.

For more information about the metadata storage, refer to Oracle ACFS Accelerator Volume. For information about specifying accelerator storage with the mkfs command, refer to mkfs. For commands that can be used to view information about accelerator storage, refer to acfsutil info file and acfsutil info fs.
Oracle ACFS NAS Maximum Availability eXtensions

Oracle ACFS provides enhancements to High Availability Common Internet File System (HACIFS) with Oracle ACFS NAS Maximum Availability eXtensions (Oracle ACFS NAS MAX).

For more information, refer to Oracle ACFS NAS Maximum Availability eXtensions.
Oracle ACFS Plugins for File Content Data Collection

Oracle ACFS plugins support file content data collection. Both polling and interval based capture are supported with the file content data collection.

For more information about Oracle ACFS plug-ins and the acfsfileid_lookup API, refer to Oracle ACFS Plug-in Generic Application Programming Interface.
Oracle ACFS Sparse Files

Oracle ACFS provides support for sparse files. Oracle ACFS sparse files greatly benefit NFS client write operations which are commonly received out of order by the NFS server and the associated Oracle ACFS file system.

Usually when an application writes beyond the end of file, storage is allocated and zeroes inserted for the region of the file beyond the old end of file and the beginning of the new write. With this feature, rather than inserting zeroes, a hole remains in the file, which benefits NFS performance and also the performance and disk utilization of other applications that perform this type of writing intentionally. This feature also has storage savings benefits for files that are inherently sparse, meaning they have a lot of unused space, such as some image files for virtual machines. Oracle ACFS fills the holes in the file with zeroes in memory when the holes are read, rather than allocating storage for the zeroes.

To use this feature, the COMPATIBLE.ADVM disk group attribute must be set to 12.2 or greater.

For an overview of Oracle ACFS storage management, refer to Overview of Oracle ACFS.
Oracle ACFS Scrubbing Functionality

Oracle ACFS provides scrubbing functionality with the acfsutil scrub command to check for and report any inconsistencies in the metadata or file data.

For information about the acfsutil scrub command, refer to Oracle ACFS Command-Line Utilities.
Oracle ACFS Loopback Functionality

Oracle ACFS supports loopback functionality on the Linux operating system, enabling Oracle ACFS files to be accessed as devices.

For information about Oracle ACFS loopback support, refer to Oracle ACFS Loopback Support.
Oracle ACFS Diagnostic Commands

Oracle ACFS provides various acfsutil commands for diagnostic purposes. These commands are intended to be run only when requested by Oracle Support to generate diagnostic data for analysis.

For information about the diagnostic commands, refer to Oracle ACFS Diagnostic Commands.

Changes in Oracle Automatic Storage Management 12c Release 1 (12.1.0.2)

The following are changes in Oracle Automatic Storage Management 12c Release 1 (12.1.0.2).

New Features

These are new features for Oracle ASM 12c Release 1 (12.1.0.2).

Oracle ASM Filter Driver

Oracle ASM Filter Driver (Oracle ASMFD) is a kernel module that resides in the I/O path of the Oracle ASM disks. Oracle ASM uses the filter driver to validate write I/O requests to Oracle ASM disks.

The Oracle ASM Filter Driver rejects any I/O requests that are invalid. This action eliminates accidental overwrites of Oracle ASM disks that would cause corruption in the disks and files within the disk group. For example, the Oracle ASM Filter Driver filters out all non-Oracle I/Os which could cause accidental overwrites.

For more information about Oracle ASMFD, refer to Administering Oracle ASM Filter Driver.

Changes in Oracle ACFS and Oracle ADVM for Oracle ASM 12c Release 1 (12.1.0.2)

The following are changes for Oracle Automatic Storage Management Cluster File System (Oracle ACFS) and Oracle ASM Dynamic Volume Manager (Oracle ADVM) in Oracle ASM 12c Release 1 (12.1.0.2).

New Features

These are new features for Oracle ACFS and Oracle ADVM in Oracle ASM 12c Release 1 (12.1.0.2).

Oracle ACFS Support For Database Data Files on Windows

Oracle ACFS in Oracle Grid 12c Release 1 (12.1.0.2) on Windows supports all database files, except for data files and redo logs in an Oracle Restart (standalone server) configuration. For support of database files on Windows, the COMPATIBLE.ADVM attribute must be set to 12.1.0.2.

For more information about database files on Oracle ACFS, refer to About Oracle ACFS and Database Data Files.
Oracle Exadata Support for Oracle ACFS and Oracle ACFS Support for General Purpose Files

Oracle Exadata on Linux supports Oracle ACFS in Oracle Grid 12c Release 1 (12.1.0.2). Oracle ACFS supports general purpose files as well as database files; however, Oracle ASM is the best practice for support of database files.

Oracle ACFS can be configured for use with the database, particularly to leverage Oracle ACFS snapshots for database testing and development. However, Oracle ACFS does not currently have the ability to push database operations directly into storage.

For more information about database files on Oracle ACFS, refer to About Oracle ACFS and Database Data Files.
Oracle ACFS Support for 1023 Snapshots

A total of 1023 read-only, read-write, or combination of read-only and read-write snapshot views are supported for each file system. For information about Oracle ACFS snapshots, refer to About Oracle ACFS Snapshots.
Oracle ACFS Support for Oracle Database File Mapping Views

Oracle ACFS supports Oracle Database file mapping views to the Oracle ASM device level. For information about file mapping views related to Oracle ACFS, refer to Oracle ACFS Support for Oracle Database File Mapping Views.
Oracle ACFS Encryption Support for Oracle Key Vault

Oracle ACFS encryption supports Oracle Key Vault as a key store. For information about using this feature with Oracle ACFS encryption, refer to Oracle ACFS Encryption.

See Also:

Oracle Key Vault Administrator's Guide for information about Oracle Key Vault

Changes in Oracle Automatic Storage Management 12c Release 1 (12.1.0.1)

The following are changes in Oracle Automatic Storage Management 12c Release 1 (12.1.0.1).

New Features

These are new features for Oracle ASM 12c Release 1 (12.1.0.1):

General Oracle ASM Enhancements

This feature provides general enhancements to Oracle ASM, including:
- Revised version of the physical metadata replication point
  
  Oracle ASM now replicates physically addressed metadata, such as the disk header and allocation tables, within each disk. This enhancement ensures that Oracle ASM is more resilient to bad disk sectors and external corruptions. The disk group attribute PHYS_META_REPLICATED is provided to track the replication status of a disk group.
  
  For more information on the PHYS_META_REPLICATED attribute, refer to PHYS_META_REPLICATED.
- Support for increased storage limits
  
  Oracle ASM now supports 511 disk groups. The maximum Oracle ASM disk size is now 32 petabytes (PB).
  
  For information about Oracle ASM size limits, refer to Oracle ASM Storage Limits.
- The ALTER DISKGROUP statement has been updated with a REPLACE clause.
  
  For more information about replacing disks in a disk group, refer to Replacing Disks in Disk Groups.
Oracle Flex ASM

Oracle Flex ASM enables an Oracle ASM instance to run on a separate physical server from the database servers. Many Oracle ASM instances can be clustered to support a large number of database clients.

This feature enables you to consolidate all the storage requirements into a single set of disk groups. All these disk groups can be managed by a small set of Oracle ASM instances running in a single cluster.

Oracle Flex ASM supports only Oracle Database 12c Release 1 (12.1) and later releases.

For information, refer to Managing Oracle Flex ASM.
Oracle ASM Disk Scrubbing

Oracle ASM disk scrubbing checks logical data corruptions and repairs the corruptions automatically in normal and high redundancy disks groups. The feature is designed so that it does not have any impact to the regular input and output (I/O) operations in production systems. The scrubbing process repairs logical corruptions using the Oracle ASM mirror disks. Disk scrubbing uses Oracle ASM rebalancing to minimize I/O overhead.

The scrubbing process is visible in fields of the V$ASM_OPERATION view.

For more information, refer to Scrubbing Disk Groups.
Oracle ASM Disk Resync Enhancements

The disk resync enhancements enable fast recovery from instance failure and faster resync performance overall. Oracle ASM disk resync enables multiple disks to be brought online simultaneously or to control the speed of the resync operation. Oracle ASM disk resync has a resync power limit to control resync parallelism and improve performance. Disk resync checkpoint functionality provides faster recovery from instance failures by enabling the resync to resume from the point at which the process was interrupted or stopped, instead of starting from the beginning.

For more information about disk resync, refer to Oracle ASM Fast Mirror Resync.
Oracle ASM Rebalance Enhancements

Oracle ASM rebalance enhancements improve scalability, performance, and reliability of the rebalance operation. This feature extends the rebalance process to operate on multiple disk groups in a single instance. In addition, this feature improves support for thin provisioning, user-data validation, and improved error handling.

For more information about disk group rebalancing, refer to Manually Rebalancing Disk Groups and Tuning Rebalance Operations.
Shared Oracle ASM Password File in a Disk Group

This feature implements the infrastructure needed to address the bootstrapping issues of Oracle ASM shared password file in an Oracle ASM disk group. This feature solves the bootstrapping problem for storing shared Oracle ASM password files in a disk group.

For information about a shared password file in a disk group, refer to Managing a Shared Password File in a Disk Group. For information about ASMCMD commands to manage an Oracle ASM or database instance password file in a disk group, refer to ASMCMD Instance Management Commands.
See Also:
- Oracle Database Administrator's Guide for information about ORAPWD commands
- Oracle Database Administrator's Guide for information SRVCTL commands
- Oracle Real Application Clusters Administration and Deployment Guide for information about SRVCTL commands
Oracle ASM File Access Control Enhancements on Windows

This feature provides enhancements to Oracle ASM File Access Control on Windows platforms.

Oracle Database now supports the use of an Oracle home user, which can be specified at installation time. The Oracle home user is associated with an Oracle home and it cannot be changed after installation. Different Oracle homes on a system can share the same Oracle home user or use different Oracle home user names. For more information, refer to About Oracle Home User on Windows.

You can now use access control to separate roles in Windows environments. With Oracle Database services running as users rather than Local System, the Oracle ASM access control feature is enabled to support role separation on Windows. In previous releases, this feature was disabled on Windows because all Oracle services run as Local System.

You can change the identity of an Oracle ASM user from one operating system (OS) user to another OS user without having to drop and re-create the user, which requires dropping all the files a user owns, which improves the manageability of Oracle ASM users and the files they own.

You can modify Windows file access controls while files are open using ASMCMD file access control commands, such as chgrp, chmod, and chown.

For more information about Oracle ASM File Access Control, refer to Managing Oracle ASM File Access Control for Disk Groups. For information about Oracle ASM File Access Control ASMCMD commands, refer to ASMCMD File Access Control Commands.

See Also:

Oracle Database Platform Guide for Microsoft Windows for information about running Oracle services on Windows platforms, different types of Windows user accounts, and access control on Windows platforms
Rolling Migration Framework for Oracle ASM One-off Patches

This feature enhances the rolling migration framework to apply oneoff patches released for Oracle ASM in a rolling manner.

You can use this feature in a clustered Oracle ASM 12c Release 1 (12.1) and higher environment to update one node at a time to the latest patch level without affecting the overall availability of the Oracle ASM cluster or the database clusters using Oracle ASM for storage. This feature improves database availability by migrating the database to another Oracle ASM instance before a shut down and upgrade operation.

For information, refer to About Oracle ASM Rolling Patches.

See Also:

Oracle Grid Infrastructure Installation Guide for information about rolling migration of Oracle ASM and Oracle Grid Infrastructure homes
Updated Key Management Framework

This feature updates Oracle key management commands to unify the key management application programming interface (API) layer. The updated key management framework makes interacting with keys in the wallet easier and adds new key metadata that describes how the keys are being used.

This feature adds a new capability to store a credential file (wallet) in Oracle ASM disk groups. For information about file types supported by Oracle ASM, refer to What Types of Files Does Oracle ASM Support?.

See Also:

Oracle Database Advanced Security Guide for information about the Oracle key management framework
Oracle Enterprise Manager

Oracle Enterprise Manager replaces Enterprise Manager Database Control for administering Oracle Automatic Storage Management. For more information, refer to Administering Oracle ASM with Oracle Enterprise Manager.

Deprecated Features

These are deprecated features for Oracle ASM 12c Release 1 (12.1.0.1).

Deprecation of single letter SRVCTL CLI options in future releases

All SRVCTL commands have been enhanced to accept more meaningful and user-friendly keyword-style options instead of the single letter options. All new SRVCTL command line interface options added in this release support keyword-style options only and do not have single-letter equivalents. The previous style of using single-letter keyword options as existed in previous releases remain fully supported. In a future release, the single-letter options may no longer be supported and customers may want to change their scripts to adapt the keyword-style command options.

Desupported Features

These are desupported features for Oracle ASM 12c Release 1 (12.1.0.1).

Desupport of RAW (Block) Storage Devices for Oracle Database and Related Technologies

Oracle Database 12c and related technologies, such as Oracle Clusterware 12c, no longer support the use of raw (block) storage devices. This means that files must be moved to Oracle ASM before upgrading to Oracle Clusterware 12c.

Changes in Oracle ACFS and Oracle ADVM for Oracle ASM 12c Release 1 (12.1.0.1)

The following are changes for Oracle Automatic Storage Management Cluster File System (Oracle ACFS) and Oracle ASM Dynamic Volume Manager (Oracle ADVM) in Oracle ASM 12c Release 1 (12.1.0.1).

New Features

These are new features for Oracle ACFS and Oracle ADVM in Oracle ASM 12c Release 1 (12.1.0.1):

Oracle ACFS Enhancements

This feature introduces enhancements for Oracle ACFS, including:
- Oracle ACFS in Oracle Grid 12c Release 1 (12.1) supports all database files for Oracle Database 11g Release 2 (11.2.0.4) or later, except for data files and redo logs in an Oracle Restart (standalone server) configuration. For this feature, the COMPATIBLE.ADVM attribute must be set to 12.1 or later for the disk group that contains the Oracle ACFS file system.
  
  Using Oracle ACFS replication or encryption with database files on Oracle ACFS is not supported. For information about other replication options for database files on Oracle ACFS, refer to Oracle Data Guard Concepts and Administration and Oracle GoldenGate documentation. Oracle GoldenGate is an Oracle product sold independently of the Oracle Database. To encrypt database data files on Oracle ACFS, Oracle recommends Oracle Advanced Security. Oracle Advanced Security provides Transparent Data Encryption (TDE) to encrypt data files for entire tablespaces. For information about Transparent Data Encryption (TDE), refer to Oracle Database Advanced Security Guide.
- Oracle ACFS supports clusterwide, file granular fcntl advisory file locking while byte range locks continue to operate in node local mode.
- Oracle ACFS directory listing performance is improved for newly created directories.
- Oracle ACFS supports end-to-end storage visibility for files with the -d option of acfsutil info file. The -d option displays details about a file extent location, from the Oracle ACFS extent to the Oracle ASM devices in the disk group. For information, refer to acfsutil info file.
- Oracle ACFS ASMCMD commands have enhanced syntax. For information about ASMCMD commands for Oracle ACFS, refer to ASMCMD Volume Management Commands.
- Oracle ACFS supports unlimited expansions when resizing a file system in a disk group with ADVM compatibility set to 11.2.0.4 or higher.
- Oracle ACFS performance and scalability improvements for ls and find in a disk group with ADVM compatibility set to 11.2.0.4 or higher.
For more information about Oracle ACFS, refer to Overview of Oracle ACFS
Oracle ACFS Enhancements Supporting Network File Storage (NFS)

Note:

This feature is not supported in Oracle Restart configurations.

High Availability NFS for Oracle Grid Infrastructure provides uninterrupted service of NFS V2/V3/V4 exported paths by exposing NFS exports on Highly Available Virtual IPs (HAVIP) and using Oracle Clusterware agents to ensure that the HAVIPs and NFS exports are always online. While base NFS supports file locking, HANFS does not support NFS file locking.

Oracle ACFS file system exports (using NFS) include Golden Images and patch updates applied to Oracle ACFS snapshots. Note that NFS is deployed with Oracle Grid Infrastructure servers in support of Oracle Grid Infrastructure client systems. Application VIP and NFS export resources are employed for Oracle ACFS and highly available NFS.

High Availability NFS can also be used as a general high availability solution for Oracle ACFS exported file systems.

For information about High Availability NFS for Oracle Grid Infrastructure homes, refer to Oracle ACFS NAS Maximum Availability eXtensions.
See Also:
- Oracle Real Application Clusters Administration and Deployment Guide for information about SRVCTL commands
- Oracle Clusterware Administration and Deployment Guide for information about Oracle Clusterware and clusters
Enhancements for Oracle ACFS Snapshots

Oracle ACFS supports the creation of a snapshot from an existing snapshot in the same Oracle ACFS file system. In addition, snapshot conversions are enabled between read-only and read-write snapshots.

For information about Oracle ACFS snapshots, refer to About Oracle ACFS Snapshots. For information about Oracle ACFS snapshot commands, refer to Oracle ACFS Command-Line Utilities.
Oracle ACFS Tagging Generic Application Programming Interface

Tagging operations are available as C application programming interfaces (APIs), described in Oracle ACFS Tagging Generic Application Programming Interface.

For information about Oracle ACFS tagging, refer to Oracle ACFS Tagging. For information about Oracle ACFS tagging operations available through the acfsutil tag commands, refer to Oracle ACFS Command-Line Tools for Tagging.
Oracle Clusterware Resources Supporting Oracle ACFS

Note:

This feature is not supported in Oracle Restart configurations.

Oracle ACFS and Oracle ADVM resource support is enhanced for both performance and coverage. Oracle Clusterware (CRS) managed resource support is extended to include enhancements for Oracle ACFS Oracle homes, Oracle ACFS General Purpose file systems, and Oracle ADVM volumes in supporting Oracle Grid Infrastructure Server Oracle ACFS export (using NFS) configurations. SRVCTL has updates to commands for managing Oracle ACFS and Oracle ADVM resources.

For information about Oracle Clusterware resources and Oracle ACFS, refer to Oracle Clusterware Resources and Oracle ACFS Administration.
See Also:
- Oracle Real Application Clusters Administration and Deployment Guide for information about SRVCTL commands
- Oracle Clusterware Administration and Deployment Guide for information about Oracle Clusterware resources
Oracle ACFS Plugins

The Oracle ACFS plugin functionality enables a user space application to collect just-in-time Oracle ACFS file and Oracle ADVM volume metrics from the operating system environment. Applications can use the Oracle ACFS plug-in infrastructure to create customized solutions that extend the general application file metric interfaces to include detailed Oracle ACFS file system and volume data.

For information about Oracle ACFS plugins, refer to Oracle ACFS Plugins. For information about Oracle ACFS plugin commands, refer to Oracle ACFS Command-Line Utilities. For information about the Oracle ACFS plug-in application programming interface, refer to Oracle ACFS Plug-in Generic Application Programming Interface.
Integration of Oracle ACFS Replication With Auditing, Encryption, and Security

This feature enables the integration of Oracle Automatic Storage Management Cluster File System (Oracle ACFS) replication with Oracle ACFS auditing, encryption, and security.

For more information, refer to Using Replication with Auditing, Encryption, and Security.
Oracle ACFS Auditing and Support for Importing Auditing Data into Audit Vault Server

This feature provides auditing for Oracle ACFS security and encryption. In addition, this feature also generates an XML file containing Oracle ACFS audit trail data which can be imported by Audit Vault Server.

For more information, refer to Oracle ACFS Auditing. For information about Oracle ACFS commands for auditing, refer to Oracle ACFS Command-Line Tools for Auditing and the acfsutil sec realm enable and acfsutil sec realm disable commands described in Oracle ACFS Command-Line Tools for Security.
Support for Oracle ACFS Replication and Tagging on Solaris

This feature supports Oracle ACFS replication and tagging on Solaris platforms.

For information about Oracle ACFS, refer to Introducing Oracle ACFS and Oracle ADVM.
Support for Oracle ACFS Replication and Tagging on AIX

This feature supports Oracle ACFS replication and tagging on AIX platforms.

For information about Oracle ACFS, refer to Introducing Oracle ACFS and Oracle ADVM.
Support for Oracle ACFS Security and Encryption on Solaris

This feature extends support for Oracle ACFS Security and Encryption Features on Solaris systems. Changes in functionality for Solaris environments are noted with the individual security and encryption commands.

For more information, refer to Oracle ACFS Security and Oracle ACFS Encryption.
Oracle Enterprise Manager

Oracle Enterprise Manager replaces Enterprise Manager Database Control for administering Oracle Automatic Storage Management Cluster File System. For more information, refer to Administering Oracle ACFS with Oracle Enterprise Manager.