Oracle Confidential Extending Automatic Storage Management to Manage ALL Data Oracle Database 11g Release 2 Ara Shakian Principal Product Manager

Oracle Confidential 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.

Oracle Confidential Table of Contents Storage management challenges ASM Overview ASM in 11gR2 takes it the next level What is it How does it work How do I manage it Benefits How do I get from here to ASM ASM reference customers

Oracle Confidential Challenges of Managing Data Explosion Lack of a single optimal solution for all data Lack of automation to reduce complexity Managing multiple software layers Complexity of managing performance Eliminating hot spots Multi-vendor support logistics and finger pointing Reducing storage Total Cost of Ownership

Oracle Confidential ASM Is Most Popular Storage Manager 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

Oracle Confidential ASM is Storage Management Platform of Choice An optimal storage management solution for database and general purpose files ASM Disk ASM Disk Group Simplifies and automates storage management Integrated cluster and single node framework Storage pooling with easy provisioning Optimal performance by default Best availability and scalability Lowest TCO Consolidates and eliminates waste No additional cost Manages ALL data 11.2 Lowers the cost of storage management

Oracle Confidential Dynamic Rebalancing Benefits: On-line capacity management Eliminates manual I/O tuning Maintain optimal performance Storage migration on line Disk Group ASM Disk Simple provisioning Add, drop or resize ASM Disk

Oracle Confidential Enables Storage Consolidation Clustered Pool of Storage Shared storage across several databases RAC and Single Instance Benefits: Simplified and Centralized management Higher storage utilization Higher performance Local Area Network ERP Database HR Database CRM Database RAC ASM RDBMS ASM RDBMS ASM ASM Disk Group ERPCRMFINHR FIN Database

Oracle Confidential Striping, Mirroring and Performance Striping designed to meet RDBMS I/O characteristics General purpose files Flexible file-based mirroring External, Normal and High Optimal performance No tuning Percentage relative to Baseline (TPS) Non-ASM ASM Time

Oracle Confidential Why You Should Care Reduced complexity thru automation No I/O tuning, reshuffling data files Simplified solution stack No finger pointing, 3 rd party LVM/FS Increases utilization and database and application uptime No down-time for storage provisioning or migration Managing storage pool vs. islands Single vendor cross-platform integrated solution Bundled and tested as one solution Same cross platform tools to install, configure and manage No additional cost!

Oracle Confidential Taking It To The Next Level With ASM in 11gR2

Oracle Confidential Oracle Grid Infrastructure (ASM + Oracle Clusterware) ASM and Oracle Clusterware integrated and installed in a single ‘Grid Infrastructure’ home Integrated installation, configuration and upgrade Installed using Oracle Universal Installer (OUI) Not a part of database install Option to minimally configure ASM and ACFS Automate creation of Oracle DB Homes on ACFS

Oracle Confidential ASM Configuration Assistant (ASMCA) Manage ASM before db install Upgrade previous versions of ASM to the current version (11g R2) One tool to initialize & manage * Disk Groups * Dynamic Volumes * ACFS file systems

Oracle Confidential 3 rd Party FS Application Extending ASM to Manage ALL Data Automatic Storage Management (ASM) ASM Instance Managing Oracle DB Files ASM Cluster & Single Node File System (ACFS) Database RAC ACFS Snapshot Dynamic Volume Manager ACFS FS Oracle Bin 3 rd Party FS DB Datafiles Database files OCR & Voting files ASM Disk Group General Purpose Files Database Files Dynamic Volumes

Oracle Confidential What is ASM Dynamic Volume Manager A new cluster (and single host) volume management service Standard disk device interface to clients Loadable kernel driver Dynamic Volume is a volume file created in an ASM disk group (new file type ‘asmvol’) An OS device file is created automatically when a dynamic volume is created Managed by SQL/ASMCMD and EM ASM DG /dev/asm/vol DATA/vol1 OS

Oracle Confidential General purpose scalable file system Journaling, extent based Single node and cluster POSIX, X/OPEN file system solution for UNIX/Linux Windows file system solution for Windows platforms Accessible through NAS protocols (NFS, CIFS) Leverages ASM technology for volume mgt Integrated with Oracle Clusterware for cluster support Multi OS platform (Linux and Windows at initial release) Integrated with Oracle system mgt tools Oracle installation and configuration Enterprise Manager and ASM Storage mgt tools Native OS File System Management tools What is ASM Cluster File System (ACFS)

Oracle Confidential What are ACFS Snapshots Dynamic, fast, space efficient, “point in time” read-only copies of ACFS file system files Captures ASM FS file block/extent updates An enabler for: On-line, disk-based, file backup model using snapshots Individual file recoveries Up to 64 snapshot images per ASM file system Policy based snapshots: Schedule snapshots on an interval basis: every 5 seconds, every 30 minutes, daily, … Create an ACFS snapshots acfsutil snap create snap_name mountp

Oracle Confidential Leveraging the Power of ASM Even distribution of data Dynamic provisioning Dynamic volumes and ACFS FS may be resized leveraging ASM file resize features % asmcmd volresize dga vol1 -s 50G Can also use Enterprise Manager for management and threshold alerts +DATA/dga/vol1 3 Primary ASM File Extent Mirrored ASM file Extents ACFS File System: /usr1 Linux: /dev/asm/vol1 Win: \\.\asm_dgname_volname ACFS file A ACFS file B Mirrored 11

Oracle Confidential Managing the Dymanic Volumes and ACFS File System Is Simple And Flexible 1.Native Linux, UNIX, and Windows OS file system commands and extensions 2.acfsutil platform independent commands 3.ASM Configuration Assistant (ASMCA) 4.Enterprise Manager

Oracle Confidential An Example: Creating an ACFS File System $ mkfs -t acfs -b 4k /dev/asm/volume1-62 ; Create fs on ASM volume $ su - root # mount -t acfs /dev/asm/volume1-62 /tmp/images # su – oracle_usr $ acfsutil registry -a /dev/asm/volume1-62 /tmp/images $ mount –t acfs –o all none none; Mount everything in the registry $ cd /tmp/images $ cp /home/my_images.

Oracle Confidential ACFS Use Cases Oracle Home Shared or node-local Not Grid Infrastructure home External files Application binaries Not an OS boot FS

Oracle Confidential Managing Oracle Database Files ASM Core Enhancements

Oracle Confidential All files on ASM Oracle Cluster Registry, Voting Disk and SPFILE Tunable Performance Intelligent Data Placement (IDP) Improved Management Full Featured ASMCMD ASM File Access Control ASM Disk Group Rename Datafile to Disk Mapping Installation & Configuration mgt ASM Install & Configuration Assistant (ASMCA) ASM 11g Release 2 New Features for Database Files

Oracle Confidential OCR and Voting Disk on ASM OCR is a regular ASM file A new ASM file type Voting Disk Stored in selected ASM disks ‘crsctl’ used to specify a disk group for Voting disks ASM auto creates1/3/5 Voting Disks based on Ext/Normal/High redundancy on Failure Groups Quorum failure group ASM determines redundancy for OCR and Voting Disk based on disk group redundancy level ASM SPFILE is also supported on ASM now

Oracle Confidential Intelligent Data Placement (IDP) Placement of files on high performance regions of disk 50% performance difference from outer to inner tracks Classify or mark an ASM file to be HOT/COLD Alter diskgroup dgname modify file ‘xxx’ attributes HOT/COLD or based on a templates at creation time Rebalance to migrate the ‘file’ to HOT/COLD IDP region IDP regions are dynamic New V$ASMFILE recording IO stats The IDP feature better leveraged when ASM disks are whole disks Disk Platter Hot Files Cold Files

Oracle Confidential Complete ASMCMD Functionality A complete API for the system admin Extending ASMCMD to manage: ASM instance (startup/shutdown, init.ora,.) Disk group, disk and failure group (create, mount, add, drop, …) Attribute (list, set) User/Group (add user, change password, …) Template (list, add, alter drop) Iostat and df lsof: list files that are open by ASM lsod: list disks that are open by ASM Dynamic Volume

Oracle Confidential Other Features ASM File Access Control (ACL) Introducing 3 classes of permissions: owner, group, and other ASM Disk Group Rename Oracle File Mapping support (OFM) View mapping of datafiles to physical devices 4k sector size disk I/O support Possible values are: 512b or 4096b (4k)

Oracle Confidential In Summary…

Oracle Confidential One Integrated Solution for ALL Data Always On-Line Optimal UtilizationScalable High Performance Low Cost Simple Cross Platform Linux, Windows, Solaris, HP-UX, AIX Structured Data Un-structured Data One Vendor for Support One Management Interface One Clusterware Framework One Install and Configure ASM Database files ASM Cluster FS & Dynamic Volumes Oracle Clusterware Oracle Database & RAC ACFS Snapshot

Oracle Confidential Some ASM Reference Customers In Production

Oracle Confidential