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 1. Architecture Center
 2. Reference Architectures


BACK UP YOUR DATA TO THE CLOUD USING BACULA ENTERPRISE AND OBJECT STORAGE

Back to Architecture Center
Contents
 * 
   Back up your data to the cloud using Bacula Enterprise and Object Storage
   * Architecture
   * Recommendations
   * Considerations
   * Explore More
   * Acknowledgments

 1. Back up your data to the cloud using Bacula Enterprise and Object Storage
 2. Back up your data to the cloud using Bacula Enterprise and Object Storage


BACK UP YOUR DATA TO THE CLOUD USING BACULA ENTERPRISE AND OBJECT STORAGE

The Oracle Cloud Infrastructure Object Storage service is an internet-scale,
high-performance storage platform that offers reliable and cost-efficient data
durability. The Object Storage service can store an unlimited amount of
unstructured data of any content type, including analytic data and rich content,
like images and videos.

Oracle Cloud Infrastructure Object Storage provides a standard tier for data
that's frequently accessed and requires faster retrieval time, infrequent access
for data that's accessed infrequently and isn't sensitive to retrieval time, and
an archive tier for long-term storage. You can utilize cross-region replication
for disaster recovery scenarios. You can also configure lifecycle management
policies on Oracle Cloud Infrastructure Object Storage to move files to the
infrequent access tier and delete files, meeting lifecycle rules, and other
operations to reduce storage costs. For more information, see Overview of Object
Storage in the Explore More section.

Object Storage also supports private access from Oracle Cloud Infrastructure
(OCI) resources in a VCN through a service gateway. A service gateway allows
connectivity to the Object Storage public endpoints from private IP addresses in
private subnets. For example, you can back up database systems to an Object
Storage bucket over the OCI backbone instead of over the internet. For more
information, see Access to Oracle Services: Service Gateway in the Explore More
section.

Therefore, when we have a service as robust as Object Storage to handle data
storage and archiving, we need some processes to integrate and automate these
services to be performed. In this solution, we intend to show a reference
architecture to work with the Bacula Enterprise backup tool on Oracle Cloud and
how users can take advantage of this tool to implement their own backup and
storage resources through integration with Object Storage.


ARCHITECTURE

Bacula is software that allows system administrators to manage backup, restore
and verification of data from computers in a mixed system network. As it is so
flexible, Bacula is considered a backup framework, which can be implemented in
the most different corporate structures.

Bacula Enterprise supports both the Standard and Archive tier in Oracle Cloud
Object Storage. Regarding the Archive Storage, the user needs to retrieve the
necessary volumes for a restore manually via OCI web console or CLI in advance,
before submitting the Bacula restore operation. This could also be automated by
scripts.

With Bacula Enterprise, it is possible to backup a large amount of different
applications with plug-ins for VMs (VMware, Hyper-V, KVM, Xen, Proxmox, and so
on), for databases (MySQL, PostgreSQL, Oracle DB, SAP, SQL Server, Active
Directory, LDAP, MongoDB, and so on) and for other several tools like Microsoft
365, Google Workspace, Docker, Kubernetes, Hadoop HDFS, Linux and Windows Bare
Metal, Zimbra, MS Exchange, Sharepoint and Cloud (Oracle, Amazon Glacier,
Google, Azure, Swift and S3).

Bacula catalog is also compatible with OCI MySQL as a service, providing maximum
protection against ransomware, including automatic self-backup. The requirements
for installing Bacula Enterprise are:
 * A 64 bit server with CentOS, RHEL, SUSE, Oracle Linux 8 (or equivalent), with
   32 GB RAM, 2 OCPUs and 250 GB for Bacula backup server and catalog.
 * NAS and/or additional disks must be mounted for backup storage (if
   applicable). 10 Gigabit or Multi-Gigabit bonding interfaces are recommended.
   If using Global Deduplication, a small SSD area for deduplication indexes on
   the Bacula server is required for higher backup performance (2% of the
   rotational area size).
 * Bacula Server Firewall Ports (inbound TCP): 9101, 9102, 9103 and 9180. Bacula
   Client Ports: 9102.
 * Installation of the backup server, clients and hypervisors requires root or
   Administrator access for Windows.

With Bacula you can execute the following tasks:
 * Back up and restore data to and from OCI Object Storage using CLI or BWeb
   interface.
 * Centralized management (operation, configuration and monitoring) through a
   multi-user web graphical interface.
 * Native network traffic limit functionality for backups.
 * Authentication of backup services through password and cryptographic key.
 * Use the compatibility feature with OCI Object Storage WORM which is a great
   feature to protect against ransomware and human errors.

For more information on Bacula Enterprise, see Bacula Enterprise Overview in the
Explore More section.

The following diagrams illustrate reference architectures showing the use of
Bacula Enterprise for backup and restore where Bacula Server can be either
on-premises or Cloud. The backups are stored in Object Storage and the traffic
flows through a private connection using FastConnect or Site-to-Site VPN and DRG
integration with Service Gateway.

The following diagram illustrates the reference architecture for Bacula
Enterprise - Backup to OCI Object Storage and Backup restore to OCI VM.



Description of the illustration oci-bacula-backup-restore.png


oci-bacula-backup-restore-oracle.zip

Download diagram


ACCEPT TERMS OF USE

You must accept the Oracle Technology Network License Agreement for Architecture
Diagrams to download this diagram.
Additional Permission — Reference Architecture Diagram

The reference architecture diagram you have asked to download is subject to the
Oracle Terms of Use ( https://www.oracle.com/legal/terms.html), except that,
notwithstanding anything to the contrary in Section 3 thereof, you are permitted
to use and edit the architecture diagram for your internal business purposes
solely for the purpose of facilitating the design and implementation of a
similar architecture that meets your business needs. Except as specifically
stated herein, your use of the https://docs.oracle.com site, as well as your use
of any other Materials that are available for download on
https://docs.oracle.com that do not contain this Additional Permission remain
subject to the standard Terms of Use.

I have reviewed and accept the Oracle Terms of Use.
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The architecture shows a process where Bacula (being in an on-premises
environment) is accessed through CLI or BWeb interface to send a backup command
integrating Bacula with OCI Object Storage. Once the integration and
configuration is complete the job will start and the file will be transfered to
a bucket in OCI Object Storage using a private connection with FastConnect or
Site-to-Site VPN and DRG integration with Service Gateway. After that, a similar
process is executed using the restore feature to send the file from OCI Object
Storage to a Block Volume attached in a Virtual Machine.

The following diagram illustrates the reference architecture for Bacula
Enterprise - Backup to OCI Object Storage (Cloud only). The image shows a
process where Bacula (now running in Oracle Cloud) is accessed through CLI or
BWeb interface as well to send a backup command integrating Bacula with OCI
Object Storage. As in the previous architecture, after the integration and
configuration is complete the job will start and the file will be transfered to
a bucket in OCI Object Storage using the Service Gateway directly once the full
scenario is already in OCI.



Description of the illustration oci-bacula-backup-object-storage.png


oci-bacula-backup-object-storage-oracle.zip

Download diagram


ACCEPT TERMS OF USE

You must accept the Oracle Technology Network License Agreement for Architecture
Diagrams to download this diagram.
Additional Permission — Reference Architecture Diagram

The reference architecture diagram you have asked to download is subject to the
Oracle Terms of Use ( https://www.oracle.com/legal/terms.html), except that,
notwithstanding anything to the contrary in Section 3 thereof, you are permitted
to use and edit the architecture diagram for your internal business purposes
solely for the purpose of facilitating the design and implementation of a
similar architecture that meets your business needs. Except as specifically
stated herein, your use of the https://docs.oracle.com site, as well as your use
of any other Materials that are available for download on
https://docs.oracle.com that do not contain this Additional Permission remain
subject to the standard Terms of Use.

I have reviewed and accept the Oracle Terms of Use.
Close
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Diagram downloading



The following diagram illustrates the reference architecture for Bacula
Enterprise - Restore to OCI (Cloud only). After the backup is completed as
described in the previous image, a similar process is executed as shown in the
following image using the restore feature to send the file from OCI Object
Storage to a Block Volume attached in a Virtual Machine.



Description of the illustration oci-bacula-restore.png


oci-bacula-restore-oracle.zip

Download diagram


ACCEPT TERMS OF USE

You must accept the Oracle Technology Network License Agreement for Architecture
Diagrams to download this diagram.
Additional Permission — Reference Architecture Diagram

The reference architecture diagram you have asked to download is subject to the
Oracle Terms of Use ( https://www.oracle.com/legal/terms.html), except that,
notwithstanding anything to the contrary in Section 3 thereof, you are permitted
to use and edit the architecture diagram for your internal business purposes
solely for the purpose of facilitating the design and implementation of a
similar architecture that meets your business needs. Except as specifically
stated herein, your use of the https://docs.oracle.com site, as well as your use
of any other Materials that are available for download on
https://docs.oracle.com that do not contain this Additional Permission remain
subject to the standard Terms of Use.

I have reviewed and accept the Oracle Terms of Use.
Close
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The architecture has the following components:

 * Tenancy
   
   A tenancy is a secure and isolated partition that Oracle sets up within
   Oracle Cloud when you sign up for Oracle Cloud Infrastructure. You can
   create, organize, and administer your resources in Oracle Cloud within your
   tenancy. A tenancy is synonymous with a company or organization. Usually, a
   company will have a single tenancy and reflect its organizational structure
   within that tenancy. A single tenancy is usually associated with a single
   subscription, and a single subscription usually only has one tenancy.

 * Region
   
   An Oracle Cloud Infrastructure region is a localized geographic area that
   contains one or more data centers, called availability domains. Regions are
   independent of other regions, and vast distances can separate them (across
   countries or even continents).

 * Compartment
   
   Compartments are cross-region logical partitions within an Oracle Cloud
   Infrastructure tenancy. Use compartments to organize your resources in Oracle
   Cloud, control access to the resources, and set usage quotas. To control
   access to the resources in a given compartment, you define policies that
   specify who can access the resources and what actions they can perform.

 * Availability domains
   
   Availability domains are standalone, independent data centers within a
   region. The physical resources in each availability domain are isolated from
   the resources in the other availability domains, which provides fault
   tolerance. Availability domains don’t share infrastructure such as power or
   cooling, or the internal availability domain network. So, a failure at one
   availability domain is unlikely to affect the other availability domains in
   the region.

 * Virtual cloud network (VCN) and subnets
   
   A VCN is a customizable, software-defined network that you set up in an
   Oracle Cloud Infrastructure region. Like traditional data center networks,
   VCNs give you complete control over your network environment. A VCN can have
   multiple non-overlapping CIDR blocks that you can change after you create the
   VCN. You can segment a VCN into subnets, which can be scoped to a region or
   to an availability domain. Each subnet consists of a contiguous range of
   addresses that don't overlap with the other subnets in the VCN. You can
   change the size of a subnet after creation. A subnet can be public or
   private.

 * Service gateway
   
   The service gateway provides access from a VCN to other services, such as
   Oracle Cloud Infrastructure Object Storage. The traffic from the VCN to the
   Oracle service travels over the Oracle network fabric and never traverses the
   internet.

 * Object storage
   
   Object storage provides quick access to large amounts of structured and
   unstructured data of any content type, including database backups, analytic
   data, and rich content such as images and videos. You can safely and securely
   store and then retrieve data directly from the internet or from within the
   cloud platform. You can seamlessly scale storage without experiencing any
   degradation in performance or service reliability. Use standard storage for
   "hot" storage that you need to access quickly, immediately, and frequently.
   Use archive storage for "cold" storage that you retain for long periods of
   time and seldom or rarely access.

 * Network Connectivity
   
   To enable your administrators to manage the environment, you can connect to
   your existing on-premises infrastructure by using site-to-site IPSec VPN
   connections or dedicated Oracle Cloud Infrastructure FastConnect circuits.
   Utilize the private endpoint option to enable private access to services
   within Oracle Cloud Infrastructure. Private access means that traffic does
   not go over the Internet.

 * Dynamic routing gateway (DRG)
   
   The DRG is a virtual router that provides a path for private network traffic
   between VCNs in the same region, between a VCN and a network outside the
   region, such as a VCN in another Oracle Cloud Infrastructure region, an
   on-premises network, or a network in another cloud provider.

 * Virtual Machine (VM)
   
   A virtual machine (VM) is an independent computing environment that runs on
   top of physical bare metal hardware. The virtualization makes it possible to
   run multiple VMs that are isolated from each other. VMs are ideal for running
   applications that do not require the performance and resources (CPU, memory,
   network bandwidth, storage) of an entire physical machine. An Oracle Cloud
   Infrastructure VM compute instance runs on the same hardware as a bare metal
   instance, leveraging the same cloud-optimized hardware, firmware, software
   stack, and networking infrastructure.

 * Block volume
   
   With block storage volumes, you can create, attach, connect, and move storage
   volumes, and change volume performance to meet your storage, performance, and
   application requirements. After you attach and connect a volume to an
   instance, you can use the volume like a regular hard drive. You can also
   disconnect a volume and attach it to another instance without losing data.


RECOMMENDATIONS

Use the following recommendations as a starting point. Your requirements might
differ from the architecture described here.
 * VCN
   
   When you create a VCN, determine the number of CIDR blocks required and the
   size of each block based on the number of resources that you plan to attach
   to subnets in the VCN. Use CIDR blocks that are within the standard private
   IP address space.
   
   Select CIDR blocks that don't overlap with any other network (in Oracle Cloud
   Infrastructure, your on-premises data center, or another cloud provider) to
   which you intend to set up private connections.
   
   After you create a VCN, you can change, add, and remove its CIDR blocks.
   
   When you design the subnets, consider your traffic flow and security
   requirements. Attach all the resources within a specific tier or role to the
   same subnet, which can serve as a security boundary.
   
   Use regional subnets.

 * Routing
   
   To implement transit routing directly through gateways (DRG to Service
   Gateway to Object Storage), see the following documentation links in the
   Explore More section :
   
   * Private Access to Oracle Service
   * Connect from on-premise to Object Storage via FastConnect


CONSIDERATIONS

Consider the following points when deploying this reference architecture.

 * Performance
   
   Depending on the amount of data, you can use Oracle Cloud Infrastructure
   FastConnect or IPSec VPN to manage costs. For faster access, you can use the
   Object Storage Standard tier to store files that you need frequently.

 * Security
   
   By default, Oracle Cloud provides encryption of all objects stored in Object
   Storage buckets. For extra security, you can choose to encrypt these objects
   using customer-managed keys.

 * Availability
   
   Object Storage is highly available. However, you can choose to configure
   cross-region replication to protect against unlikely regional outages.

 * Cost
   
   Pricing varies depending on which Object Storage tier you choose. So,
   carefully consider the appropriate tier. Moreover, some objects have
   retention requirements, and violating the requirements can trigger extra
   charges. For these requirements and costs, see Overview of Object Storage in
   the Explore More section.


EXPLORE MORE

Review these additional resources to learn more about the components used in
this reference architecture.

Oracle Cloud Infrastructure:
 * Best practices framework for Oracle Cloud Infrastructure
 * Oracle Cloud Infrastructure Documentation
 * Oracle Cloud Cost Estimator
 * Access to Oracle Services: Service Gateway
 * Overview of the Compute Service
 * Overview of Object Storage
 * Overview of Block Volume
 * Blog: Bacula Enterprise Integrates Natively with Oracle Cloud Infrastructure
 * Connect from on-premise to Object Storage via FastConnect
 * Private Access to Oracle Services

Bacula Enterprise:
 * Bacula Sizing and Components Distribution
 * Bacula Enterprise Overview
 * Bacula Enterprise Documentation
 * Bacula Enterprise for the Cloud With Native Cloud Integration


ACKNOWLEDGMENTS

Author: Arthur Vianna
Contributors: Heitor Faria, Adriano Tanaka, Henrique Ferro

Title and Copyright Information

Back up your data to the cloud using Bacula Enterprise and Object Storage

F75376-01

January 2023

Copyright © 2023, Oracle and/or its affiliates. 


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