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What is an ASM system?
Automatic Storage Management (ASM) is an integrated, high-performance database file system and disk manager. ASM groups the disks in your storage system into one or more disk groups. You manage a small set of disk groups and ASM automates the placement of the database files within those disk groups.
What files can be stored in the ASM Diskgroup?
You can store the following file types in ASM diskgroups:
- Datafiles.
- Control files.
- Online redo logs.
- Archive logs.
- Flashback logs.
- SPFILEs.
- RMAN backups.
- Temporary datafiles.
Why is ASM useful?
ASM aims to simplify the management of database datafiles, control files and log files. To do so, it provides tools to manage file systems and volumes directly inside the database, allowing database administrators (DBAs) to control volumes and disks with familiar SQL statements in standard Oracle environments.
How do I copy an ASM file system?
Method 1 : Using ASMCMD Utility In this method, we are copying the datafile “TS1. 256.739191187” in diskgroup DG1 from ASM to “ts2. dbf” on to the file system.
What is the file system that certified for RAC?
The Cluster File System (CFS) offers a very good shared storage facility for building the RAC database. CFS provides a shared file system, which is mounted on all the cluster nodes simultaneously.
What is cooked filesystem?
A cooked file is essentially a file carved out of an existing file system. For example with SQL Server I know I use “cooked” space when setting up my files and filegroups – the space comes from the D: drive in my case. In addition to cooked space on the Solaris side, we can also use “raw” space.
How do you query ASM?
SQL queries used for the discovery of Oracle ASM
- To discover Oracle ASM diskgroup in 10gR1 release: select GROUP_NUMBER, NAME, STATE, TYPE, TOTAL_MB, FREE_MB from v$asm_diskgroup;
- To discover Oracle ASM diskgroup in 10gR2 or later release:
- To discover Oracle ASM disk:
How to open .ASM file?
Right click on the unknown ASM file you want to open
What are the most common file types and file extensions?
In summary, the most common document file extensions are: .DOC and DOCX. .HTML and .HTM. .ODT. .PDF. .XLS and XLSX.
What are the different file extensions?
A computer file extension is commonly a three character addition that follows the name of a file. A few of the more common file extensions include EXE, DOC or DOCX, XLS, TXT, PDF, and MP3. See our list of most common file types and file extensions for a complete list of file extensions broken down to categories.
What is an example of a file extension?
File Extension. A file extension (or simply “extension”) is the suffix at the end of a filename that indicates what type of file it is. For example, in the filename “myreport.txt,” the .TXT is the file extension. It indicates the file is a text document. Some other examples include .DOCX, which is used for Microsoft Word documents,…