ETERNUS SF Recovery Manager for Oracle EE 13.0.1 User's Guide - Solaris(TM) Operating System -
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Chapter 1 OVERVIEW

This chapter gives an overview of Recovery Manager for Oracle.

1.1 Overview of Recovery Manager for Oracle 

This section gives an overview of Recovery Manager for Oracle.

1.1.1 About Recovery Manager for Oracle 

Recovery Manager for Oracle provides an online disk-to-disk backup operation for the Oracle database, and a simplified recovery function through screen operation.

1.1.2 Functions of Recovery Manager for Oracle 

Recovery Manager for Oracle provides the following functions:

1.1.2.1 Online Backup function 

  1. Online backup

    The backup of the database can be obtained without terminating the database. The following features can be utilized:

    1. Checking if the database files are normal before obtaining the backup of the database

      The online backup function quickly checks whether all database files (control files, data files, and online redo log files) are normal, before obtaining the backup of the database.

    2. Backing up the data files (tablespaces)

      Data files can be backed up using one of the two following methods:

      1. Standard

        Oracle Recovery Manager (hereafter referred to as "RMAN") generates the backup sets.

      2. Advanced copy

        The One Point Copy (hereafter referred to as "OPC") or equivalent copy (hereafter referred to as "EC") function of the ETERNUS3000/6000 or ETERNUS GR Series storage system backs up the database at high speed.

        Note: EC supports the suspend/resume functions only.

    3. Backing up the control files

      RMAN generates the backup set.

    4. Backing up the archived redo log files

      RMAN generates the backup set.

  2. Delete expired archived redo log files

    The feature deletes archived redo log files when the files have exceeded the number of generations being managed.

  3. Wait for the completion of the OPC physical copy

    This feature waits for completion of the OPC physical copy to execute in the background.

1.1.2.2 Recovery function 

The following features are provided by the recovery function. They are operated through the GUI screen.

  1. DB check

    Confirms the status of database file damage (control files, data files, online redo log files).

  2. Recovery
    1. Auto recovery

      Automatically determines and executes the restore and recover function according to the status of database damage.

    2. Full recovery

      Restores control files and all data files, and executes the recovery operation.

    3. Custom recovery

      Executes the recovery operation for the files selected on-screen.

      Note: This data recovery function is suited to advanced users.

1.2 Recovery Manager for Oracle Operating Forms 

This section explains the different operating modes of Recovery Manager for Oracle.

Recovery Manager for Oracle supports the following database operation forms:

1.2.1 Single Server Operation 

[Figure 1.2.1 A Sample Configuration of Single Server Operation ]

RMfO: Recovery Manager for Oracle

1.2.2 Cluster Operation (HA) 

Only the Active/Passive Cluster Environment and the Active/Active Cluster Environment are supported in cluster operation (HA).

There must be one standby node for each active node.
Setting multiple standby nodes for an active node, or transporting the standby node, is not supported (i.e. the cascade or the transport standby are not supported).

1.2.2.1 Active/Passive Cluster Environment 

[Figure 1.2.2.1 A Sample Configuration of Active/Passive Cluster Environment]

1.2.2.2 Active/Active Cluster Environment 

[Figure 1.2.2.2 A Sample Configuration of Active/Active Cluster Environment]

1.2.3 Cluster Operation (RAC) 

In Recovery Manager for Oracle 13.0, the RAC system is comprised of between 2 and 4 nodes.

[Figure 1.2.3 A Sample Configuration of Cluster Operation (RAC) ]

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