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What is ASM in Oracle 11gr2?

by Rhyley Bryan

What is ASM in Oracle 11gr2?

Automatic Storage Management (ASM) is an integrated, high-performance database file system and disk manager. ASM eliminates the need for you to directly manage potentially thousands of Oracle database files. ASM groups the disks in your storage system into one or more disk groups.

How do I view ASM disk in Windows?

Open a command line window and type “diskpart” – it will take us into DISKPART command line tool to partition the disks. Issue “list disk” command to view all the disks. Issue “Select disk ” command to select the disk, then create extended partition, and then logical partition; as shown in this screenshot.

How do I create ASM disk in Windows?

Oracle Creating the ASM Instance Manually (on Windows)

  1. If CSS service is not there, create it by executing the following bat file:
  2. Building the ASM Candidate “disks”: for testing or development purpose.
  3. Create a pfile with the name “init+ASM.ora” in the folder \database.
  4. Create the ASM instance service:

What is the use of ASMLib?

ASMLib is an optional support library for the Automatic Storage Management feature of the Oracle Database. Automatic Storage Management (ASM) simplifies database administration and greatly reduces kernel resource usage (e.g. the number of open file descriptors).

How can I tell if a database is using ASM?

In an Automatic Storage Management instance, V$ASM_CLIENT identifies databases using disk groups managed by the ASM instance. In a database instance, V$ASM_CLIENT displays information about the ASM instance if the database has any open ASM files.

How do I know if my ASM is running?

Verify the ASM setup

  1. Change to the Oracle Clusterware/Grid Infrastructure home directory: For Oracle RAC 10g Release 2/Oracle RAC 11g Release 1: # cd $CRS_HOME/bin.
  2. Verify the status of ASM on all the nodes in the cluster: # ./srvctl status asm ASM instance +ASM1 is running on node galaxy.

How do I manually create an ASM instance?

To create an ASM instance first create a file called “init+ASM. ora” in the “/tmp” directory containing the following information. Next, using SQL*Plus connect to the ide instance. Create an spfile using the contents of the “init+ASM.

How do I know if ASM is installed?

How do I know if I have ASMLib?

d/oracleasm createdisk is used. There is a situation during scandisks operation where the ASMLIB is binded to the single/individual path and not to the pseudo device. You can verify this running an ls -l /dev/oracleasm/disks and checking the major,minor numbers of the devices.

How do I check my ASM status?

How do I find my ASM file system?

To create and verify a file system, perform the following steps:

  1. Create an Oracle ASM volume in a mounted disk group with the ASMCMD volcreate command. The compatibility parameters COMPATIBLE.
  2. Determine the device name of the volume that was created.
  3. Create a file system with the Oracle ACFS mkfs command.

How do I know the size of my ASM file?

How To List Files and Sizes within an ASM Disk Group

  1. select f. group_number, f. file_number, bytes, space, space/(1024*1024) “InMB”, a. name “Name”
  2. from v$asm_file f, v$asm_alias a.
  3. where f. group_number=a. group_number and f. file_number=a. file_number.
  4. order by f. group_number, f. file_number;

Do you have to install Oracle Grid before using Oracle ASM?

To use Oracle Automatic Storage Management (Oracle ASM) or Oracle Restart, you must first install Oracle Grid Infrastructure before you install and create the database. Otherwise, you must manually register the database with Oracle Restart.

Where to find runinstaller for Oracle 11gR2 OBEs?

If you are not using the Oracle VM template for Oracle Database 11gR2 OBEs, you need to access the runInstaller from your software directory. 3. There are unformatted disk partitions available to mark as ASM disks and form into an ASM diskgroup.

How to install grid infrastructure in Oracle 11g?

In the Oracle 11g Release 2, the Grid Infrastructure is required to use Automatic Storage Management (ASM), and Oracle Restart The installation using the Oracle Universal Installer (OUI), The post-installation tasks to integrate the Grid infrastructure with a pre-existing database installation

How to install Oracle validated package on ASM?

select the package “oracle validated package” and ASM Rpms. Create the directories in which the Oracle software will be installed. Click Allocate all disk space now (Because Database creation will fast) Browse the folder for ASM DiskDiskgroup creation in Progress Building a new DOS disklabel. Changes will remain in memory only,