© 2009 Oracle Corporation
S311443 : Slash Storage Costs with Oracle Automatic Storage Management
Ara VagharshakianASM Product Manager – Oracle Product Management
© 2009 Oracle Corporation
The following is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code, or functionality, and should not be relied upon in making purchasing decisions.The development, release, and timing of any features or functionality described for Oracle’s products remains at the sole discretion of Oracle.
Safe Harbor Statement
© 2009 Oracle Corporation
CliffsNotes
• Why the “high-cost” of storage• ASM 101• How ASM cuts storage cost– ASM consolidation• Eliminates islands of spare capacity • Reduces storage management complexity• Reduces storage management layers
– ASM features that reduce cost• Intelligent data placement• Eliminates the need for continuous tuning • Supports storage tiering
UnstructuredData
RegulatoryCompliance
MergersAcquisitions
StructuredData
Burgeoning Applications
DataReplication
Why the High-Data Volume Growth
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Reasons for the “High Cost” of Storage
• Storage hardware and software cost• Arrays• SAN fabric• Management software
• Administration cost • Administrating storage, SAN and OS• Provisioning• Troubleshooting and tuning
• Cost of downtime– Availability and change
Automatic Storage Management (ASM) 101
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A storage manager designed to manage Oracle database files – offered at no additional cost
• Volume Manager• File System• Clustering capabilities• General purpose cluster file system
Predictably Deliverson Performance &
Availability SLA’s
Increases Storage
Utilization and Agility
Simplifies and Automates
Storage Management
Reduce Cost and Complexity Without Compromising Performance or Availability
ALL
• Automatic I/O load balancing• Stripes data across disks to
balance load• Optimizes I/O throughput
• Automatic mirroring • Efficient, online add/remove of
disks• Consolidate data into a
common shared storage environment
Automatic Storage Management
DB-A DB-B DB-C
Automatic Storage Management (ASM) 101
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Disk Group
How ‘ASM Consolidation’ Cuts Storage Costs
ASM Consolidates Storage and Management
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DB-A DB-B DB-C DB-D
1 Allocated DB Size (TB)
Number of disks (LUNs)
Number of volumes/FS
Utilization
20
4
50 %
2
40
8
60 %
2
40
8
90 %
5
100
20
30 % 50 %
200
Number of Disk Groups ~ 1
I/O Activity
I/O Activity
40
... ... ... ...Totals
Non-ASMASM
Consolidation Requires “Always Online”ASM– Re-Balancing
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• Automatic online rebalance whenever storage configuration changes
Disk Group
Consolidation Requires “Always Online”ASM– Re-Balancing
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• Automatic online rebalance whenever storage configuration changes• Only move data proportional to
storage added
Disk Group
Consolidation Requires “Always Online”ASM– Re-Balancing
• Automatic online rebalance whenever storage configuration changes• Only move data proportional to
storage added• No need for manual I/O tuning
Disk Group
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Consolidation Requires “Always Online”ASM– Re-Balancing
• Automatic online rebalance whenever storage configuration changes• Online migration to new
storage
Disk Group
© 2009 Oracle Corporation
Consolidation Requires “Always Online”ASM– Re-Balancing
• Automatic online rebalance whenever storage configuration changes• Online migration to new
storage
Disk Group
© 2009 Oracle Corporation
Consolidation Requires “Always Online”ASM– Re-Balancing
• Automatic online rebalance whenever storage configuration changes• Online migration to new
storage
Disk Group
© 2009 Oracle Corporation
Consolidation Requires “Always Online”ASM– Re-Balancing
• Automatic online rebalance whenever storage configuration changes• Online migration to new
storage
Disk Group
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Consolidated ASM Storage Infrastructure
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Automatic
Storage
Management
Disks
LVM
File Systems
0010 0010 0010 0010 00100010 0010 0010 0010 0010Files
Tablespace
Tables
Tablespace
Tables
Before ASM ASM
Networked Storage (SAN, NAS, DAS)
Files
Disk Group
Disks
Consolidated ASM Storage InfrastructureReduces Storage Management Complexity
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LVM/FS1. Add Disk to OS2. Create volume(s) with
Volume Manager 3. Create File System over
volume 4. Add files to tablespace5. Move data to new files6. Re-tune I/O
ASM 1. Add Disk to OS2. Add disk to an existing disk
group
Provisioning additional storage to a database
ASM takes care of the rest
3rd Party FSApplication
Automatic Storage Management (ASM)
ASM Cluster & Single Node File System
(ACFS)
Database
ACFS Snapshot
ASM Disk
Group
DB Datafiles, OCR and Voting FilesDB Datafiles, OCR and Voting Files ACFS FSsACFS FSs 3rd Party File Systems3rd Party File Systems
Dynamic Volume Manager
• ASM supports ALL data - database files, file systems, Clusterware files (OCR, Voting Disk)• Built-in mirroring protects from disk failures• Enables auto-repair from corrupt blocks using a valid mirror copy
Automatic Storage Management (ASM)Stores & Manages All Data
ASM Instance Managing Oracle DB
Files
How ASM Features Cut Storage Costs
Intelligent Data Placement
• Policy-based file placement for hot files on high performance regions of disk
• Classify files as hot or cold for placement
• Supports Oracle Exadata Storage Server
• Save up to 35% on storage• Use Case: Place file system
data on cold file region
New in 11.2
Infrequently Accessed
Data
Infrequently Accessed
Data
Frequently Accessed
Data
Frequently Accessed
Data
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Manual Storage Tuning vs Automatic Storage Tuning
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Time
No
n-A
SM
Tablespace
LVM
Tablespace Tablespace
Tablespace
Disk GroupAS
M
Tablespace Tablespace
ASM Eliminates Manual Storage Tuning
PercentBaseline
(TPS)Non-ASM
(Gets out of tune in time)
ASM
TIME
Graphical representation only (not a benchmark)
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Storage Pricing Circa 2008
Storage Tier Vendor Min $/GB
(1/2008)
Max $/GB
(1/2008)AVG
High End Vendor 1 - 146GB, <10TB $11.10 $14.70
$13.80Vendor 2 - 146GB, < 10TB $12.00 $16.10
Vendor 3 - 146GB, <10TB $12.20 $16.90
Low End Vendor 1 - 146GB, <6TB $4.40 $6.00
$5.20Vendor 2 - 146GB, 6TB $4.90 $6.50
Vendor 3 - 146GB, <6TB $4.10 $5.50
Average Cost Factor Between High End and Low End 2.65 X
• Prices in high end range typically represent a system configured for performance• Prices in the low end range typically represent a system configured for capacity• With all loaded costs, can be between $5-14 GB
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Using the Right Storage for the Right DataD
ata
Cha
ract
eris
tics
Age
Access Frequency
Volume
Months 1 - 3 Months 4 - 12 Months 13 - 72
Tier 1 Tier 2 Tier 3
SD
* Mission critical Applications* Enterprise storage* Mirroring & replication* Continuous Data Protection
* Low-cost storage* Flash recovery area
* Unused storage* JBOD storage
Recovery Requirements
SD
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Use ASM to Create Storage Tiers
Database 1
1997-2001 2002
High End
$2.5X
Low End
$X
Online Archive
$½ X
Class
Costs
ASM Disk Groups
Database 2
Database 3
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Enterprise Strategy Group Survey
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“Enterprise respondents’ stated top five storage priorities over the next 24 months—data reduction, storage virtualization, power-efficient hardware, tiered storage, and remote backup for branch offices”
ASM Cost Cutting Advantages
• ASM reduces operational costs– Simplifies storage management – Fewer things to manage – Storage Grid– Common management interface across platforms
• ASM reduces capital costs– Eliminates the need for 3rd party LVM/file system– ASM supports the use of lower cost storage– ASM supports storage tiers
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ASM Adoption
• De-facto standard for RAC and grid deployments, >65%• De-facto standard for VLDB
deployments• Large and growing adoption for
single instance deployments, >20%• Thousands of customers using ASM• One of the most popular features in
the database
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Some ASM Reference Customers In Production
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AQ&Q U E S T I O N SQ U E S T I O N S
A N S W E R SA N S W E R S
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