ASM offers the following functions:
- It manages disk groups
- It manages disk redundancy in a disk group
- It supports huge files
- It allows database object management minus specifying filenames and mount points
- It offers i/O balancing minus any manual tuning.
Advantages of ASM
ASM is a high-performance and an integrated disk manager and database file system. It is based on a principle that it must manage storage rather than an administrator doing it. It reduces the requirement to manage potential Oracle database files directly.
Its benefits are highlighted in our ASM essay assignment help as follows:
Striping
It spreads data on all disks evenly for optimizing utilization and performance. Its even distribution eliminates the requirement of I/O performance tuning and regular monitoring.
Mirroring
It can enhance its availability by file mirroring. It mirrors at a file level. Mirroring indicates storing mirrored copies or redundant copies for avoiding loss of data caused due to disk failures. A mirrored copy is kept on another disk that is separate from an original copy. In the case of disk failure, you can access affected files. It supports both 2-way mirroring as well as 3-way mirroring.
Manage file creation as well as deletion
It minimizes administration jobs by allowing files that are stored in an ASM disk group to remain Oracle-managed files. It assigns filenames at the time of file creation automatically. When the files are not needed further they are deleted automatically.
Online storage reconfiguration
It allows you in adding and removing the disk from a disk storage system when a database is in operation. At the time you add any disk, it redistributes data automatically so that data gets spread evenly on all disks in a disk group. The redistribution is called rebalancing. This happens in the background that has a slight impact on the performance of a database. We have employed qualified experts who possess vast experience in this topic.
Features of ASM
Some key features are stated in our ASM dissertation thesis writing help as follows:
- It offers optimal I/O balancing minus any manual tuning
- It replaces Cluster File System
- It does not have data dictionary
- It manages disk groups. You should be careful when you select a disk.
- Disks may be added to a disk group dynamically.
- A disk may be partial, LUN, or full from RG.
- When you combine it with OMF, it enhances manageability.
- RMAN may be used along with ASM.
- You can create simple tablespace.
- It introduces three Oracle background processes- ARBx, RBAL, and ASMB.