Automatic Storage Management (ASM), a feature of Oracle Database, provides the database administrator with a simple storage management interface that is consistent across all server and storage platforms. As a vertically integrated file system and volume manager, purpose-built for Oracle database files, ASM provides the performance of direct async I/O with the easy management of a file system. ASM provides features that saves DBAs time and provides flexibility to manage a dynamic database environment with increased efficiency. ASM key benefits are:
The Oracle Cloud File System (CloudFS) provides unprecedented simplicity in storage management, automation in provisioning and storage consolidation for general purpose files. CloudFS 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 data services such as point-in-time copy snapshots, file system replication and tagging as well as file system security and encryption.
Oracle Database 11gR2 collateral:
Oracle Database 11g Release 1 ASM New Features Technical White Paper (PDF)
ASM new features technical white paper
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)
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