1. Owner's Guide
  2. Preinstallation
  3. Using Oracle Exadata Deployment Assistant
  4. Overview of Oracle Exadata Deployment Assistant
  5. Considerations and Requirement for Using OEDA

Considerations and Requirement for Using OEDA

Review this information before using Oracle Exadata Deployment Assistant (OEDA).

  • Recovery Appliance ships with the Oracle Linux operating system installed on the servers.

  • The rack prefix is used to generate host names for all components. For example, if you specify dbm0 for the rack prefix:

    • The database server host names are like dbm0db01
    • The storage server host names are like dbm0cel01
    • The host names should be 16 characters or less, because other names are created by combining this host name with certain designations (for cell disk and catalog) and have 32 character limitations that are exceeded when host names are larger than 16 characters.
    • The InfiniBand Network Fabric switch names are like dbm0sw-iba1
    • The RoCE Network Fabric switch names are like dbm0sw-rocea1

    Note:

    The rack prefix can contain a maximum of 20 letters and numbers. Spaces and symbols are not permitted; for example, exclamation (!), hyphen (-), and so on.

    In you have multiple racks, then, each rack prefix should be a unique value that identifies the rack. Oracle recommends using dbm01 for the first rack, dbm02 for the second, dbm03 for the third, and so on.

  • If you configure Recovery Appliance with storage management using Oracle Automatic Storage Management (Oracle ASM), the backup method and redundancy protection levels you use determine how to size the Oracle ASM disk groups that are created during installation.

    • If you configure internal backups, then the database backups are created on disk in the Fast Recovery Area in the RECO disk group for the database. The Fast Recovery Area also contains Archived Redo Logs and Flashback Log Files. The division of disk space between the DATA disk group and the RECO disk group is 40% and 60%, respectively.

    • If you configure external backups, then database backups are created on disk or tape media that is external to currently deployed Recovery Appliance. The Fast Recovery Area contains only objects such as Archived Redo Logs and Flashback Log Files.

  • A valid time zone name is required when installing Recovery Appliance. Time zone values provided for Recovery Appliance and Oracle Linux comes from the Time Zone Database. You must specify a valid time zone name for each server using the TZ environment variable. The variable value is of the form Area/Location. For example, America/New_York is a valid TZ value; EST, EDT, and UTC-4 are invalid values.

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