Preparing the operating system for installation. Software packages that are required while installing Linux (first check to see whether the server’s BIOS has the latest firmware).
Consistency is a key requirement and factor of a database. “Shadow Copy” and “Write-Ahead Logging” (WAL) methods are used in order to ensure consistency, WAL being more popular.
Data, in Oracle, is logically stored in tablespaces and physically stored in datafiles. The illustration below shows the file and logical structures according to the operating system.