About the database Smart Flash cache feature in Oracle 11GR2 and the operating system that this feature applies To

Source: Internet
Author: User

About the database Smart Flash cache feature in Oracle 11GR2 and the operating system that this feature applies To

Reference from:

How to Size the Database Smart Flash Cache (document ID 1317950.1)

The first is the introduction of the database Smart Flash cache:

The Database Smart Flash Cache is a new feature in Oracle Database 11g Release 2 (11.2). The database Smart Flash cache is a transparent extension of the database buffer caches using solid state device (SSD) Tech Nology. The SSD acts as a level 2 cache to the (Level 1) SGA.  Database Smart Flash Cache can greatly improve the performance of Oracle databases by reducing the amount of disk I/O at a Much lower cost than adding an equivalent amount of RAM.

The operating system that the Database Smart Flash Cache feature applies To:

Your database is running on the Solaris or Oracle Linux operating systems. The flash cache is supported to these operating systems only.

Well, after Rhel has set up flash cache, the DB instance is not coming up, as follows:

Sql> startup;ora-00439:feature not enabled:server Flash Cache


And the DB instance under Oracle Linux will start normally.

About the database Smart Flash cache feature in Oracle 11GR2 and the operating system that this feature applies To

Related Article

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.