Oracle IO Optimization and Improvement（oracleio）

Oracle IO optimization and improvement have been the focus of many IT departments recently. In this article, we’ll look at some of the best practices you can use to optimize Oracle and improve performance.

The first step in optimizing Oracle IO is to ensure that your disk and IO performance is at its best. This is done by monitoring your disk performance regularly, such as disk rotations, read/write operations and other disk activities. You can use tools such as Oracle’s Optimal Flexible Architecture utility and SolarWind’s DiskMon tool to get accurate performance data.

Once you have an accurate baseline of your disk activity, the next step is to optimize your file systems. This is done by testing different file system settings, such as block sizes and directory sizes to determine which settings provide the best performance for your setup. You should also use tools such as SolarWinds’ UNC utility to track disk access in real time and check whether your disk is being accessed properly or if there are any bottlenecks.

Another practice that can help to optimize Oracle IO is to disable unnecessary disks. For example, if your database only needs a single RAID configuration, then disabling the other unused disks can help to optimize Oracle IO. This will also reduce the amount of power and cooling requirements for your database. Additionally, disabling unused disks can help to speed up the booting process when restarting your database, as it reduces the amount of data being read and written.

The last practice to optimize Oracle IO is to make sure that the database has enough RAM to handle its workloads. Allocating too much RAM to a database can lead to physical I/O performance degradation as large blocks of data can be retrieved from disk instead of from RAM. So, it is important to check the total RAM capacity and use the appropriate amount for your database.

With the right combination of disk and file system optimization, Oracle IO can be improved dramatically. This can help to improve the overall performance of your database, reduce downtime and minimize the amount of disk I/O overhead. By following these best practices, you can ensure that your database is running at its best.