Automatic Storage Management (ASM), a feature of the Oracle Database, provides Oracle customers with simplified storage management that is consistent across all server and storage platforms. With ASM, storage is managed as a small number of storage pools called ASM Disk Groups. Database related files are assigned to ASM Disk Groups and ASM manages the layout and data organization ensuring optimal performance and protection from storage hardware failure. ASM Disk Groups provide a convenient and easy means for consolidating storage and simplifying the administrative tasks previously required of DBAs and System Administrators. Key benefits of ASM include:
With Oracle Database 12c, ASM extends the flexibility of ASM with an important set of new functionality collectively called Flex ASM. Flex ASM enhances the robustness and support for large clusters deploying Oracle RAC. Key benefits of Flex ASM include:
|White Paper: A Technical Overview of New Features for Automatic Storage Management in Oracle Database 12c|
The Oracle ACFS/ADVM provides unprecedented simplicity in storage management, automation in provisioning and storage consolidation for all general purpose files including Oracle database files. Oracle ACFS/ADVM is a storage cloud infrastructure with resource pooling, network accessibility, rapid elasticity and rapid provisioning that are key requirements for cloud computing environments. The product includes:
Oracle ASM Dynamic Volume Manager (ADVM)
ADVM provides a common volume management service and a standard device driver interface for system administrators to manage across different platforms. ACFS and 3rd party file systems can use ASM Dynamic Volumes to create and manage file systems leveraging all the power and functionality of ASM features. Therefore, an ADVM volume may be easily resized to adapt to the storage need of a file system without any downtime.
A general-purpose POSIX, X/OPEN and Windows compliant file system designed for single node and cluster configurations. ACFS is managed using native operating system commands, ASM asmcmd and the Oracle Enterprise Manager. ACFS supports advanced functionality such as point-in-time copy snapshots, file system replication and tagging as well as file system security, encryption auditing.
|White Paper: Oracle ACFS Technical Overview|
Back-of-the-Envelop Database Storage Design (PDF)
An I/O design methodology overview to simplify storage design for your database
ASM and Multipathing Best Practices and Information Matrix (PDF)
Multipathing software and ASM information matrix and best practices guide
Oracle Database 10g Release 2 ASM - New Features White Paper (PDF)
This paper discusses the enhancements to ASM which are new in Release 2 of Oracle Database 10g.
ASM Overview and Technical Best Practices White Paper (PDF)
This paper discusses the basics of ASM such as the steps to add disks, create a diskgroup, and create a database within ASM, emphasizing best practices.
Take the Guesswork Out of Database IO Tuning White Paper (PDF)
Oracle Database layout and storage configurations do not have to be complicated any more. Learn more about best practices with ASM that reduce complexity and simplify storage management.
Database Storage Consolidation with ASM White Paper (PDF)
Database storage consolidation empowered by ASM for RAC and single instance database environments
Automatic Storage Management Overview (PDF)
This short paper is a summary of current storage challenges and how ASM addresses them in Oracle Database 10g.
Automatic Storage Management White Paper (PDF)
This technical overview describes the ASM architecture and its benefits.
Migration to ASM with Minimal Down Time, Technical White Paper (PDF)
Migrate your database to ASM using Oracle Data Guard and RMAN
Hitachi Data Systems (HDS):
Hitachi Adaptable Modular Storage 2000 Family Best Practices Guide for Hot backups in Oracle Database 11g Release 2 ASM
Best Practices for ASM on Hitachi Dynamic Provisioning
HDS Universal Storage Platform Replication Software and ASM Best Practices (PDF)
Pillar Data System:
Pillar Axiom Storage System Best Practices with ASM (PDF)
Using Oracle ASM on Network Appliance Storage (PDF)
Maintaining High Storage Utilization with Oracle ASM Storage Reclamation Utility and 3PAR Thin Persistence (PDF)
ASM Storage Reclamation Utility (ASRU) Download
Simplified Database Storage Management - Testing of ASM on 3PARdata Storage (PDF)