Wednesday , April 24 2024

Oracle Zero Data Loss Recovery Appliance

In today’s article, I will be explain about the Zero Data Loss Recovery Appliance (ZDLRA) product developed by Oracle.

As important as Backup and Restore operations are for any critical system, these operations are as critical for Oracle Database administrators.

In today’s conditions, no industrial product is designed for database redundancy and does not perform in this regard.

We use software when each of us takes a database backup or when we want to access these backups.

In the Oracle world, this situation has been different for a long time. Oracle solves our problems with ZDLRA.

Imagine a machine that backs up your database with a zero data loss mission for you and does this with very high performance.

Now we can look at the technical specifications of ZDLRA.

Oracle ZDLRA is a product that can grow in hardware and horizontally.

When we examine the template below, the chassis called Base Rack can backup / restore 5TB of data in an hour while operating at a capacity of 94TB.

When you switch to a Full Rack chassis, the Capacity reaches a figure of 580TB, while 7TB of data is processed in an hour.

Architectural design:

Oracle database becomes part of the ecosystem. ZDLRA only backs up changed data after the first full backup. This backup process uses a technology called RMAN Delta push and completes it with zero data loss. Due to the system architecture, it can transfer backups to different areas.

Incremental backups taken after full backup are always kept ready for restoration depending on parameter or capacity.

All these processes can be monitored by Oracle Enterprise Cloud Control.

While accessing our ZDRLA main database, it uses RMAN Deltra push feature as well as DELTA STORE technology. Deltra Store ZDRLA is like the brain of the software.

It validates the modified data blocks flowing through the Delta Store and serves as storage by compressing them and adding them to the indexes.

These modified blocks form the basis of the database on ZDRLA. This structure provides 5 times performance and space savings compared to traditional backups.

When we look at the other features of Oracle ZDRLA, we see that it offers policy-based protection. It can transfer the backups on ZDRLA to Tape or ZDRLA at a different point.

The Gold, Silver and Bronze policies, which come ready-made, provide convenience and can be customized at the same time.

Examining the example image below, we can see different policies for different environments. This also shows that we can apply different policies to each database.

Software features of Oracle ZDRLA:

Real Time Redo Transport

ZDRLA Management of remote locations

Autonomous tape archiving

End-to-end data validation, accuracy of database backups

Incremental backup strategy

Management of backups by ZDLRA

Cloud Scale Architecture

Unified management and control with RMAN and Oracle Enterprise Manager

We have finished the first part of our introductory ZDRLA article, you can view the video recording prepared for ZDRLA from the link below.


About Buğra PARLAYAN

Burgra Parlayan is an experienced Database and Weblogic Administrator. After completing his technical / relevant training he has got involved with a serious amount of projects. He successfully managed database upgrade, database migration, database performance tuning projects for various public institutions.Currently he has been employed by one of the leading financial institutions called Turkiye Hayat & Emeklilik as responsible administrator for Oracle Database and Oracle Middleware. He has been sharing his experience and knowledge by face to face training, personal blog and various social networking accounts to support the Oracle ecosystem continuously since 2010.

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