Download Oracle 10g Manageability

Michael Sit
Solution Specialists Manager
Oracle Corporation
Oracle Database 10g
Database Manageability
Manageability Vision
Self-Tuning
Self-Managing
Database
Manageability Goal
½ Cost
Where DBA’s spend their time
Install 6%
Create & Configure
12 %
Software Maintenance
6%
Load Data 6%
Ongoing System Management
55%
Source: IOUG 2001 DBA Survey
Where DBA’s spend their time
Install 6%
Create & Configure
12 %
Software Maintenance
6%
Load Data 6%
Ongoing System Management
55%
Source: IOUG 2001 DBA Survey
Simplified Installation & Upgrade
 Fast, Lightweight Install
 Automatic Pre & Post Install Validations
 Configure all administration tools &
components
 Silent mode for Embedded ISV’s
 Pre upgrade checks
 Post upgrade status checks
 Time estimator
 Re-startable
Simplified Creation &
Configuration
 Database Configuration Assistant (DBCA)
 Greatly reduced database creation time using
pre-configured, ready-to-use database
 90% reduction of initialization parameters: < 30
Basic parameters
 Automatically setup common tasks, e.g. backups
 Automatically configures LDAP server
 Automatic Shared Server Set-up
 Easy Connect Naming
Out-of-the-Box Database
Control
 No separate install
 Fully functional
administration and
monitoring after
database creation
 Listener discovery,
configuration &
monitoring
Where DBA’s spend their time
Install 6%
Create & Configure
12 %
Software Maintenance
6%
Load Data 6%
Ongoing System Management
55%
Source: IOUG 2001 DBA Survey
Efficient Data Load
Oracle Database 10g
 Data Pump
–
–
–
–
–
60% faster than Export (single stream)
15X-20X faster than Import (single stream)
Automatic Parallelism – multiple streams
Re-startable
Size estimation on export dumpfiles
 Cross Platform Transportable Tablespaces
Where DBA’s spend their time
Install 6%
Create & Configure
12 %
Software Maintenance
6%
Load Data 6%
Ongoing System Management
55%
Source: IOUG 2001 DBA Survey
Ongoing System Management
55% of DBA’s time is spent in ongoing
management, monitoring and tuning
1.
2.
3.
4.
5.
Performance Diagnosis & Troubleshooting
Space & Object Management
SQL & Application Tuning
System Resource Tuning
Backup and Recovery
Source: IOUG 2001 DBA Survey
Manageability Challenges - Today
Application & SQL Management
Optimizer Stats Response time
Throughput
Schema/Index
System Resource
Management
Backup & Recovery
Management
CPU Utilization
Memory Pools
Processes
Tapes, MTTR
Disaster Recovery
Internal Space Management
Table growth trend
Space fragmentation
External Storage Management
Disk Configuration
Stripe Size
Data Redistribution
Oracle Database 10g –
Self-Managing Database
Application & SQL
Management
Storage
Management
Database
Control
System Resource
Management
Database
Backup & Recovery
Management
Management
Intelligent
Infrastructure
Space
Management
Intelligent Infrastructure
 Automatic Workload
Repository
Advisory
Application
& SQL
Management
Infrastructure
–
–
Storage
System Resource
Server-generated Alert
Management
Management
Infrastructure
Automatic Maintenance Task
Space
Backup & Recovery
Infrastructure
Management
Database
Management
Management
Automatic Workload
IntelligentRepository
Infrastructure
“Data Warehouse” of the
Database
Code instrumentation
 Automatic Maintenance
Tasks
–
Pre-packaged, resource
controlled
 Server-generated Alerts
–
Push vs. Pull, Just-in-time,
Out-of-the-box
 Advisory Infrastructure
–
Integrated, uniformity
Automatic Workload
Repository

Advisory
Infrastructure
Server-generated Alert
Infrastructure


Automatic Maintenance Task
Infrastructure
Automatic Workload Repository

Automatically collect and
compute important statistics,
SQL workload, feature usage
Periodically flush snapshots
to disk
Primarily build for
automating internal
components
Enable real-time and
accurate self-management
Automatic Database
Diagnostic Monitor (ADDM)
Application & SQL
Management
Storage
Management
System Resource
Management
Backup & Recovery
Database
Management
Space
Management
Management
Intelligent Infrastructure
 Performance expert in a box
 Provides database-wide
performance diagnostic,
including RAC
 Automatically runs at every
capture of workload
repository snapshot
 Provides impact and benefit
analysis
 Provides Information vs. raw
data
 Integrates all components
using the Time Model with
common currency
ADDM’s Architecture
Snapshots in
Automatic Workload
Repository
Automatic
Diagnostic
Engine
Self-Diagnostic
Engine
High-load
SQL
SQL
Advisor
IO / CPU
issues
System
Resource
Advice
RAC issues
Network +
DB config
Advice
 Instrument database code
paths to produce Time &
Wait Model
 Self-Diagnostic Engine in the
database – Key to database
performance
 Classification Tree - based
on decades of Oracle
performance tuning
expertise
 Real-time results
 Pinpoints root cause and
non-problem areas
 Runs manually also
Application and SQL
Management
Key to efficient SQL
execution: Oracle Costbased Optimizer
 Proven Technology
–
Application & SQL
Management
–
Storage
Management
System Resource
Management
 Sophisticated functionality
–
Backup & Recovery
Database
Management
Space
Management
Management
Over 10 years of production
usage
Adopted by all top-tier
applications vendors
–
Intelligent Infrastructure
–
–
–
Automatically-gathered
object and system (CPU, IO,
Caching) statistics
Comprehensive set of
access paths, adaptive
search strategy
Cost-based transformations
Automatic allocation of
memory and parallelism
Versioned optimizer statistics
Remaining Challenges
 How to quickly find optimal plans for complex
queries?
–
Sub-optimal plans caused by correlations, complex
predicate selectivity
 What is “bad” SQL?
 How to work-around ‘bad’ SQL in packaged
applications?
 How to ‘globally’ optimize an entire application’s
SQL statements?
–
Adding an index may help one statement, but what is
the impact on the rest of the application
Automatic Tuning Optimizer
Packaged
Apps
Customizable
Apps
High-load SQL
 Identify ‘bad’ SQL
–
–
–
Automatic workload
capture
Automatic
identification of highload SQL by ADDM
Top N highest
resource-consuming
SQL Statements
Automatic Tuning Optimizer
Packaged
Apps
Customizable
Apps
High-load SQL
 Automatic SQL
Tuning
–
Automatic Tuning Optimizer
–
Auto SQL
Tuning
–
Packaged
Apps
+
SQL
Profile
–
Well-tuned SQL
Learn from past
executions
Dynamic sampling,
partial execution
techniques
Profile the SQL
statement to
feedback to
optimizer
No change to SQL
text
Automatic Tuning Optimizer
Packaged
Apps
Customizable
Apps
 Automatic SQL Analysis
High-load SQL
Automatic Tuning Optimizer
Auto SQL
Analysis
Customizable
Apps
+
SQL
Advice
Well-tuned SQL
–
–
Optimizer explains
decision points
Advises on badly
written SQL, stale
statistics, bad schema
Automatic Tuning Optimizer
Packaged
Apps
Customizable
Apps
 SQL Access Advisor
High-load SQL
–
Automatic Tuning Optimizer
–
Access
Advisor
–
Customizable
Apps
+
Indexes &
MVs
Well-tuned SQL
–
Advise on access
paths
Indexes, Materialized
Views, Indexes on
Materialized Views
Consider entire
workload
Consider Impact on
insert/update/delete
Automatic Tuning Optimizer
Packaged
Apps
Customizable
Apps
 Complete SQL
Management
High-load SQL
Automatic Tuning Optimizer
Auto SQL
Tuning
Auto SQL
Analysis
–
Access
Advisor
–
–
Packaged
Apps
+
SQL
Profile
Customizable Customizable
Apps
Apps
+
+
SQL
Indexes &
Advice
MVs
Well-tuned SQL
–
Automated workload
capture, identification
of high-load SQL
Automatic SQL Tuning
Automatic SQL
Analysis
SQL Access Advisor
Automatic Tuning Optimizer
Packaged
Apps
Customizable
Apps
 Complete SQL
Management
High-load SQL
Automatic Tuning Optimizer
Auto SQL
Tuning
Auto SQL
Analysis
–
Access
Advisor
–
–
Packaged
Apps
+
SQL
Profile
Customizable Customizable
Apps
Apps
+
+
SQL
Indexes &
Advice
MVs
Well-tuned SQL
–
Automated workload
capture, identification
of high-load SQL
Automatic SQL Tuning
Automatic SQL
Analysis
SQL Access Advisor
System Resource Management
Oracle 9i
Application & SQL
Management
Storage
Management
System Resource
Management
Backup & Recovery
Database
Management
Space
Management
Management
Intelligent Infrastructure
 Resource Manager
controls and prioritizes
CPU usage
 Automatic SQL
Memory Tuning
Automatic Shared Memory
Tuning
Online
Users
Large Batch
Jobs
Buffer Cache
Buffer Cache
Large Pool
Large Pool
SQL Cache
SQL Cache
Java Pool
Java Pool
sort
sort
 Automatically
resizes with
changes in
workload
 Maximize usage
of available
SGA Pool memory
 Only 2 memory
PGA Pool
parameters
Automatic Space Management
Oracle9i
Application & SQL
Management
Storage
Management
System Resource
Management
Backup & Recovery
Database
Management
Space
Management
Management
Intelligent Infrastructure
 Eliminates external space
fragmentations
– Locally Managed
Tablespace
 Eliminates space allocation
contention
– Automatic Segment
Space Management
Proactive Space Management
Segment running
out of space
Capacity
Planning
ServerGenerated
Alerts
 Automatically monitor,
capture space usage at
space allocation time efficient
 Advise and predict
space growth trend,
fragmentation
 “Just-in-Time” Alerts on
space pressure
Proactive Space Management
Segment running
out of space
Fragmented
Segment
Online Segment Shrink
–
–
Capacity
Planning
ServerGenerated
Alerts
Online
Segment
Shrink
–
–
Reclaim space from
internal
fragmentation
Improve
performance
In-place shrinking
of tables
Wait on DML
operations
Automatic Backup & Recovery
Automatic Storage Management
Application & SQL
Management
Storage
Management
System Resource
Management
Backup & Recovery
Database
Management
Space
Management
Management
Intelligent Infrastructure
Automatic Storage Management Benefits


Automatic Storage
Management
Automates daily storage
administration
– Automatic I/O tuning
– Eliminates disk fragmentation
– Automatically selects allocation
policy per Oracle file type
Automates storage re-configuration
– Automatic data copy on disk
add/drop, no reconfiguring
volume and re-striping
– Online migration to new storage
hardware
Where DBA’s spend their time
Install 6%
Create & Configure
12 %
Software Maintenance
6%
Load Data 6%
Ongoing System Management
55%
Source: IOUG 2001 DBA Survey
Scalable Software
Maintenance – Discover and
Analyze Configurations
 Complete inventory of all Oracle software
–
–




Versions
Patch levels
Oracle product configuration details
Search and compare configurations
Change tracking
Reference configurations
Scalable Software
Maintenance - Automated
Software Cloning
 Reduce manual labor in software life-cycle
–
From hours to minutes
 Automate mass provisioning of reference
systems
1
Select Software (and
Instances) to Clone
Clone to
Selected
Targets
2
3
Update
Inventory
Scalable Software
Maintenance - Automated
Patch Management
 Real-time discovery of new patches
–
Security patch rapid deployment dramatically reduces
vulnerabilities
 Automatic staging and application
–
From hours to minutes
 Rolling RAC upgrade
2
Determine
Applicability
3
Apply Patch
4
1
Patch Published
Update
Inventory
Scalable Software
Maintenance - Automated
Best Practice Checks
 Security
–
–
–
Software installation
hardening
Excess user
privileges
Excess
services/ports
 Parameter Usage
 Space
 New features
½ Cost - Oracle9i vs. Oracle 10g
13
16
Number of Steps
10
10
12
6
8
6
4
4
4
1
2
2
2
2
Oracle9i
Oracle 10g
0
Performance
Diagnostic
SQL Tuning
Resource
Management
(Memory)
Space
Management
Backup &
Recovery
Storage
Management
Result Summary
Oracle 10g required 44% less time and 47% fewer steps than Oracle9i
Oracle Database 10g
Simplified Creation & Configuration
Fast Lightweight
Install
Enterprise
Configuration
Management
½ COST
Self-Managing Database
Efficient
Data Load
Questions?