Oracle 11GR2 New Features - DBARAC

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14 Δεκ 2013 (πριν από 7 χρόνια και 10 μήνες)

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Oracle 11GR2 version has significant improvements over Oracle 11GR1 version
by providing a series of specific capabilities and product enhancements targeted
for consolidation, migration of databases to lower the costs of Database
. In
addition, Oracle11GR2 continues to add features and
capabilities that extends existing investment in mission
critical infrastructure .
Oracle11GR2 has been designed with focus on certain key development areas.
These areas are:


Pe r f o r ma n c e

a i l a b i l i t y

Se c u r i t y

Ma n a g e a b i l i t y

Bu s i n e s s I n t e l l i g e n c e a n d Da t a wa r e h o u s i n g

Au t o ma t i c St o r a g e Ma n a g e me n t

Cl u s t e r i n g

Agent Development Framework

Oracle Clusterware provides an agent framework for
managing all kinds of applications with Oracle Clusterware
. Using the agent framework
provides optimized application startup, checking, and stopping based on user
scripts. This feature helps save money and reduces costs efficiently enabling high
availability for applications using Oracle Clusterware. (11g

Place Oracle Clusterware Upgrade

A new version of Oracle Clusterware is now
installed into a separate home from the current installation. This reduces the downtime
required to upgrade a node in the cluster and facilitate the provisioning of cl
usters within
an enterprise. (11gR2)

Cluster Time Service

The Cluster Time Service synchronizes the system time on all
nodes in the cluster. A synchronized system time across the cluster is a prerequisite to
install and successfully run an Oracle cluster
. (11gR2)

Configuration Assistant Support for Removing Oracle RAC Installations. (11gR2)

Configuration Assistants Support New Oracle RAC Features. (11gR2)

Downgrading Database Configured With DBControl. (11gR2)

Enhanced Cluster Verification Utility. (11gR2

Enterprise Manager Provisioning for Oracle Clusterware and Oracle Real Application

Enterprise Manager provisioning introduces procedures to easily scale.

Enterprise Manager Support for Grid Plug and Play. (11gR2)

Enterprise Manager
Support for Oracle Restart. (11gR2)

Enterprise Manager
Based Clusterware Resource Management. (11gR2)

Grid Plug and Play (GPnP). (11gR2)

Improved Clusterware Resource Modeling. (11gR2)

Integration of Cluster Verification Utility (CVU) and Oracle Universal

Installer (OUI).

Java API for Oracle RAC FAN High Availability Events. (11gR2)

Oracle Cluster Registry (OCR) Enhancements. (11gR2)

Faster relocation of services on node failure.

Oracle Clusterware now supports up to 5 copies of the OCR for improv
ed availability of
the cluster.

OCR can now be stored in Automatic Storage Management (ASM).

Oracle Restart Integration with Oracle Universal Installer. (11gR2)

Oracle Universal Installer Support for Removing Oracle RAC Installations. (11gR2)

OUI Support f
or Out
Place Oracle Clusterware Upgrade. (11gR2)

Patch Application with DBControl. (11gR2)

Based Cluster and Capacity Management. (11gR2)

Separated Management

separated management for Oracle Clusterware
allows certain administrative t
asks to be delegated to different people, representing
different roles in the company. It is based on the idea of a clusterware administrator.

Server Control (SRVCTL) Enhancements. (11gR2)

Server Control (SRVCTL) Enhancements to Support Grid Plug a
nd Play. (11gR2)

SRVCTL Support for Single
Instance Database in a Cluster. (11gR2)

UCP Integration with Oracle Data Guard. (11gR2)

UCP Integration with Oracle Real Application Clusters. (11gR2)

Universal Connection Pool (UCP) for JDBC. (11gR2)

Zero Downtim
e Patching for Oracle Clusterware and Oracle RAC. (11gR2

Database QoS Management Support. (11gR2)

Database Quality of Service (QoS) Management Server (11gR2)

Enterprise Manager QoS Management Integration. (11gR2)

Pe r f o r ma n c e i mp r o v e me n t s


70% faster
(ADDM has a better global view of the RAC cluster). (11gR1)


50% faster. (11gR1)

Optimizer stats collection

10X faster. (11gR1)

Query results caching

25% faster. (11gR1)

Table Scans 2.5x Faster using advance compression. (11gR1)

Materialized Views for fast OLAP CUBE building. (11gR1)

New In
Memory Database Cache, Data cached in application memory, fast and
consistent response times and a standard SQL interface.

Result caches

new memory areas in the SGA for storing SQL query resu
lts, PL/SQL
function results and OCI call results. (11gR1)

Invisible indexes

indexes that are ignored by the optimizer. Handy for testing without
dropping. (11gR1)

Oracle secure files

5X faster than normal file systems. (11gR1)

No need to have a C
iler installed to use Native PL/SQL Compilation. (11gR1)

Stored Outlines Migration for SQL Plan Management

Stored outlines can be migrated
for future and enhanced usage with SQL Plan Management (SPM).

Support for 4 KB Sector Disk Drives

Today, disk dr
ives have 512 byte sectors. Disk
drive manufacturers are moving to 4 KB sector drives because it allows them to offer
higher capacity with lower overhead.

Client Result Cache Using Table Annotations Support

enables applications to leverage
client and se
rver result caching through deployment time knobs as opposed to making
application changes. In addition, this feature provides automatic client cache invalidation.

Segment Creation on Demand (11gR2)

The initial segment creation for non partitioned
s and indexes can be delayed until data is first inserted into an object.

Managed Indexes for List Partitioning Tables. (11gR2)

Size Unusable Indexes and Index Partitions (11gR2)

Unusable indexes and
index partitions do not consume any space
in the database anymore; they become
segment less.

Av a i l a b i l i t y i mp r o v e me n t s

Ability to apply many patches on
line without downtime (RAC and single instance
databases). (11gR1)

Data recovery advisor

quickly identify the root cause of failures; auto fix
or present
recovery options to the DBA. (11gR1)

ASM Preferred Mirror Read/ Faster Mirror Resync. (11gR1)

XA transactions spanning multiple servers. (11gR1)

Improved runtime connection load balancing. (11gR1)

Flashback Transaction/ Oracle Total Recall. (11g

Automatic Block Repair

Automatic block repair allows corrupt blocks on the primary
database or physical standby database to be automatically repaired, as soon as they
are detected, by transferring good blocks from the other destination. (11gR2)

p to Amazon Simple Storage Service (S3) Using OSB Cloud Computing. (11gR2)

DUPLICATE Without Connection to Target Database. (11gR2)

Enhanced Tablespace Point
Time Recovery (TSPITR). (11gR2)

New DUPLICATE Options:


NO REDO (11gR2)


ts_name> [, <ts_name> …] (11gR2)

New SET NEWNAME Clauses and Format Options (11gR2)

Tablespace Checks in DUPLICATE. (11gR2)

New Oracle Streams Features like (11gR2):


XStream In

Extended Streams Inbound (XStream In) provides a high performance,
based interface to Oracle Streams for information exchange from non
databases or file systems.


XStream Out

Extended Streams Outbound (XStream Out) provides a high
performance, transaction
based interface to Oracle Streams for information exchan
ge to
Oracle databases or file systems.

Se c u r i t y i mp r o v e me n t s

Support for case sensitive and multi
byte passwords (disable by setting
SEC_CASE_SENSITIVE_LOGON initialization parameter to FALSE. (11gR1)

Transparent Data Encryption (support for
tablespace level encryption). (11gR1)

Hardware based master key protection. (11gR1)

Encrypt backups. (11gR1)

Kerberos authentication

strong passwords. (11gR1)

Add Multi
factor DBA controls with Data Vault. (11gR1)

Tablespace Master Key Re
Key (11gR2)

racle Advanced Security capability allows
customers to change the master key used to protect the encryption keys used to encrypt Oracle

Ma n a g e a b i l i t y i mp r o v e me n t s

New MEMORY_TARGET parameter for Automatic memory tuning. (11gR1)

Manager Support Workbench for ASM. (11gR2)

New Gateway Support (11gR2)

EMCA Supports New Oracle RAC Configuration for EM. (11gR2)

SQL monitoring (11gR2)

Monitoring the progress of long
running SQL statements at
the XPlan level.

Automatic Patching of Tim
e Stamp with Time Zone Data. (11gR2)

Prevent Data Loss for Time Zone with Local Time Zone Data Type. (11gR2)

Enterprise Manager Integration with ASM Optimal Disk Placement. (11gR2)

Enterprise Manager Support for ASM Cluster File System (ACFS). (11gR2)

Bu s i
n e s s I n t e l l i g e n c e a n d Da t a Wa r e h o u s i n g

Allow Virtual Columns in the Primary Key or Foreign Key for Reference Partitioning.

Analytic Functions 2.0. (11gR2)

EXECUTE Privilege for DIRECTORY Objects. (11gR2)

Memory Parallel Query. (11gR2)

Effort Parallel Execution

Auto Degree of Parallelism (DOP) and Queuing.

Preprocessing Data for ORACLE_LOADER Access Driver in External Tables. (11gR2)

Recursive WITH Clause. (11gR2)

Significant Performance Improvement of On
Commit Fast Refresh. (


11GR2 Automatic Storage Management

ASM Cluster File System (ACFS) (11gR2)

The ASM Cluster File System (ACFS)
extends Automatic Storage Management (ASM) by providing a robust, modern, general
purpose file system for files beyond the Oracle database files. ACFS provides support
for files su
ch as Oracle binaries, report files, trace files, alert logs, and other application
data files.

ASM Dynamic Volume Manager (DVM) (11gR2)

is a kernel
loadable device driver that
provides a standard device driver interface to clients (for example, ACFS).
File systems
or other processes can do I/O to this device driver as they would to any other disk device
driver on the system.

ASM FS Snapshot (11gR2)

is a point
time copy of a file system and can
provide up to 64 snapshot images as read only and can
be used to view a file
system as of point in time in the past when they were created.
snapshots can be used as a backup and to restore files which have been
deleted by mistake.

Enterprise Manager Integration for ASM File Access Control. (11gR2)

e Cluster Registry (OCR) and Voting Disk on ASM. (11gR2)

ASM Optimal Disk Placement (ODP). (11gR2)

Oracle has been sitting together with
storage vendors and found ways to enable ASM to make use of storage
intelligence features.
As of Oracle 11gR2 it is p
ossible to specify on which disk
regions the ASM Disks will be placed. This enables us to make use of faster disk
zones on the outer regions of disks for better I/O performance.

ASMCMD Command Extensions (11gR2)

The ASMCMD tool is extended to include
nagement of ASM disks, disk groups, and ASM instance in addition to managing
ASM files.

Automatic Storage Management (ASM) File Access Control. (11gR2)

Fast mirror resync after temporary connectivity lost. (11gR1)