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Exadata Storage Server Architecture > Exadata Storage Server Software Component...

Exadata Storage Server Software Components

The storage grid in the Exadata Database Machine is composed of multiple Exadata Storage Servers, with each server providing a network-accessible storage device to be utilized by Oracle ASM. The operating system managing the Exadata Storage Servers is Oracle Linux, and the Oracle software providing the core features of the Exadata Storage Server is Oracle Exadata Storage Server Software.

The Exadata Storage Server Software consists of the following components:

Image Cell Server (CELLSRV) The CELLSRV process is the main kernel of Exadata Storage Server Software and is responsible for serving iDB requests initiated by the database and ASM instances. The CELLSRV process handles simple block I/O requests along with offload processing requests. The CELLSRV process implements IORM plans and performs throttling of I/O bandwidth based on I/O priorities as defined by the plan. CELLSRV also interacts with DBRM for implementing intradatabase resource manager plans.


  

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