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A Backup as a Service (BaaS) Software Solution

Heitor Medrado de [email protected]

Departamento de Ciencia da ComputacaoInstituto de Ciencias Exatas

Universidade de Brasılia

11 de Setembro de 2017

1

IntroductionLiterature Review

The Proposal

Topics

1 IntroductionObjective

2 Literature ReviewCloud ComputingDisaster RecoveryArchitectureCloud Backup Macro RequirementsThe Overlying Backup Software

3 The ProposalScopeObjectivesScheduleBibliography

2


The ProposalObjective

Topics

1 IntroductionObjective

2 Literature Review

3 The Proposal

3



Introduction

Backup is the replica of any data that can be used torestore its original form [Guise]

Digital data created worldwide more than doubles everytwo years - 44 zetabytes in 2020 [IDC]

Backup is old and popular, but most backup systems areoutdated [Russel et. al]

Modern backup should provide integration to thegrowing Cloud [Russel]

4



Objective

The present study aims to propose and deploy a Backup as aService software solution

Cloud/backup parameters

Cloud backup challenges

Architectures

BaaS system requirements

Prototype construction and deploy

5


The Proposal

Cloud ComputingDisaster RecoveryArchitectureCloud Backup Macro RequirementsThe Overlying Backup Software

Topics

1 Introduction

2 Literature ReviewCloud ComputingDisaster RecoveryArchitectureCloud Backup Macro RequirementsThe Overlying Backup Software

3 The Proposal

6


The Proposal


Cloud Computing

Shift data and computational services from individualdevices to distributed architectures [Armbrust, Buyya]

Global market revenues growing from U$ 67 billions by2015 to U$ 241 billions by 2020 [Columbus, Ried et al.]

5 characteristics, 3 service categories, 4 deploymentmodels [NIST]

7


The Proposal


Cloud Disaster Recovery Model

DR is persistent problem for the CSP - must provideservices to their customers even if a data center is down

Data, application and system level [Khoshkholghi et al.]

Figure: Comparison of DR models [Raju et al.]

8


The Proposal


DR Parameters [Alhazmi and Malaiya]

RPO ∝ 1

FB(1)

RTO = fraction of RPO +5∑

jmin

Tj (2)

Minimum RPO and RTO.

Minimal impact on the normal system operation.

Should be geographically separated.

Application shall be restored to a consistent state.

DR solution must guarantee integrity, privacy andconfidentiality.

9


The Proposal


Cloud DR Challenges

Dependency.

Cost (initializing, ongoing and potential disaster costs).

Failure Detection.

Security.

Replication Latency.

Limited Data Transmission Capabilities.

Increasing Data Storage Demand.

Lack of Redundancy.

10


The Proposal


Remote Backup to the Cloud [Camacho et al.]

Local Data CenterBackup Clients

TLS / Data Encryption

Cloud StorageBackup Service

Figure: A Cloud Environment for Backup and Data Storage Architecture

11


The Proposal


Local Backup from the Cloud

Figure: Local Backup Architecture [Javaraiah]

12


The Proposal


Geographical Redundancy and Backup (GRB)

Figure: GRB Architecture [Pokharel et al.]

13


The Proposal


Inter-Private Cloud Storage (IPCS)

Figure: The Inter-Private Cloud Storage architecture [Jian-hua and Nan]

14


The Proposal


Secure-Distributed Data Backup (SDDB)

Figure: Basic configuration of the SDDB Architecture [Ueno et al.]

15


The Proposal


BaaS Provider Requirements [Ismail et al., Rimal et al.]

Autonomy.

Cloud Scalability.

Self-description.

Fault-tolerance.

Interoperability.

Load Balancing.

Multi-party.

Multi-Tenancy.

Optimal Provisioned Infrastructure Usage.

Quality-of-Service.

Standard Interface.

Storage and Data Management.

Workload Management.

16


The Proposal


BaaS User’s Requirements [Ismail et al., Rimal et al.]

Adaptability and Learning.

Automation.

Backup Standardization.

Data Consistency (Application specific, Crash andFile-system).

Data Integrity.

Firewall Protected or NATed Clients Backup.

Non-disruptive Backup.

Service Level Agreements (SLAs).

User-Centric Privacy.

User Consumption-based Billing and Metering.

User Experience (UX).

17


The Proposal


BaaS Candidate Solutions

Figure: Magic Quadrant for Data Center Backup and Recovery Software[Russel].

18


The Proposal


BaaS Candidate Solutions

Figure: Backup Software Solutions Google Queries for the Last 5 years[Google].

19


The Proposal


BaaS Candidate Solutions Comparison

Table: BaaS focused Backup Software Comparison

Solution S3 Stor-age Sup-port

Self-serviceportal?

NumberofPlugins

U$ Monthly Priceper Client

Arcserve Yes No 4 3.08-7.59Bacula Enterprise Yes No 17 3.90-16.90Bareos Yes No 5 5.46-52.45Commvault Yes Yes 22 12.71-31.66EMC No No 9 38.25 or moreSpectrum Protect Yes No 10 90.66-146.67Veeam No Yes 7 12.25Veritas Netbackup No No 14 10.58-332.91

20


The Proposal


The Overlying Backup Software

Bacula is the 3rd most popular enterprise multi-platformserver backup system, and open source [Google Trends]

Full, differential, incremental, copy and migratemultiplexed jobs supported

Compression, block deduplication, backups from FIFO,communication and data encryption [Sibbald]

Job 1 Data and Metadata



Figure: Bacula traditional volume writing format.

21


The Proposal


Bacula Architecture

Figure: Bacula Services Distribution and Network Ports [Preston].

22


The Proposal


Bacula Features

General Features (organization, resource efficiency,architecture multi-thread etc.).

Job Features(scheduler, job types, multiplexing etc.).

Interface Features (CLI, GUI, REST, monitoring, multi-partyetc.).

Catalog Features (SQL, file browsing, pruning routines etc.).

Storage Features (tape, Tape-Library, disks, NAS, NDMP, S3,object storage etc.).

Data Reducing Features (compression, deduplication etc.).

Security Features (backup server DR, backup files checksum,storage integrity verification etc.).

Specific Applications Backup (virtual machines, databases,LDAP bases, system state etc.).

23


The Proposal

ScopeObjectivesScheduleBibliography

Topics

1 Introduction

2 Literature Review

3 The ProposalScopeObjectivesScheduleBibliography

24


The Proposal


Choosen ArchitectureRemote Backup to the Cloud

Local Data CenterBackup Clients

TLS / Data Encryption

Cloud StorageBackup Service

Figure: A Cloud Environment for Backup and Data Storage Architecture.

25


The Proposal


Choosen Requirements

Id Requirement Macro Re-quirement

2 Shall contain interactive illustration ordemonstration to instruct unaware users.

adaptabilityand learning

9 Shall provide the usage of a Bacula singleinstance of the object code and database inorder to support multiple customers.

multi-tenancy

12 Shall be able to easily create new tenants automation16 Shall involve feedback of end-user on the in-

terface design, and deployuser experience

26


The Proposal


Objectives

This work aims to deploy a Backup as a Service solution under theRemote Backup to the Cloud architecture. In order to achieve whatis aimed the following specific Objectives have been determined.

1 To enroll cloud backup challenges.

2 To find current proposed cloud backup architectures.

3 To determine what BaaS features must be added totraditional backup software.

4 To deploy, evaluate and validate the proposal prototype.

27


The Proposal


Activities

1 Architecture Design and Adjustment. Verify and documentthe technical specifications, boundaries and conditions of theexperiment.

2 Determine performance metrics, system and workloadparameters. Select evaluation techniques.

3 Prototype Development. Description and documentation offeatures deploy and inner workings.

4 Validation. Analyze and interpret data. Present the results.

5 Prototype Adjustments.

6 Dissertation Writing.

7 Defense.

8 Scientific Papers Writing.

28


The Proposal


Activities

Table: Research activities schedule.

Act. Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul

1 X X X

2 X X

3 X X X X X X

4 X X X

5 X X X

6 X X X X X

7 X

8 X X X X X X X

29


The Proposal


1 P. d. Guise, ”Enterprise Systems Backup and Recovery”. CRC Press, 2008.2 ”The Digital Universe of Opportunities: Rich Data and the Increasing Value of the Internet of Things.”

[Online]. Available: https: //www.emc.com/leadership/digital-universe/2014iview/executive-summary.htm3 D. Russell, P. Rinnen, and R. Rhame, ”Magic Quadrant for Data Center Backup and Recovery Software”,

2016.4 D. Russel, ”The Future of Backup May Not Be Backup”, 2011.5 M. Armbrust, I. Stoica, M. Zaharia, A. Fox, R. Griffith, A. D. Joseph, R. Katz, A. Konwinski, G. Lee, D.

Patterson, and A. Rabkin, ”A view of cloud computing”, Communications of the ACM, vol. 53, no. 4, p.50, Apr. 2010.

6 R. Buyya, J. Broberg, and A. Goscinski, Cloud computing: principles and paradigms. USA: Wiley, 2011.7 L. Columbus, ”Roundup Of Cloud Computing Forecasts”, 2017.8 S. Ried, H. Kisker, and A. Bartels, ”Sizing The Cloud”, 2011.9 P. Mell and T. Grance, ”The NIST Definition of Cloud Computing,” 2011.

10 M. A. Khoshkholghi, A. Abdullah, R. Latip, S. Subramaniam, and M. Othman, ”Disaster Recovery inCloud Computing: A Survey”, Computer and Information Science, vol. 7, no. 4, p. 39, Sep. 2014.

11 M. R. Raju, J. P. Prakash, and G. R. Rao, ”Disaster Recovery of Servers using Virtualized CloudComputing”, 2012.

12 O. Alhazmi and Y. Malaiya, ”Evaluating Disaster Recovery Plans Using the Cloud”, 2013.13 H. Camacho, A. Brambila and A. Pena, ”A Cloud Enviroment for Backup and Data Storage”, 2014.14 V. Javaraiah, ”Backup for cloud and disaster recovery for consumers and SMBs”, in Advanced Networks

and Telecommunication Systems, 2011 IEEE 5th International Conference on. IEEE, 2011, pp. 1?3.15 M. Pokharel, S. Lee, and J. S. Park, ”Disaster Recovery for System Architecture Using Cloud Computing.”

IEEE, Jul. 2010.16 Z. Jian-hua and Z. Nan, ”Cloud Computing-based Data Storage and Disaster Recovery.” IEEE, 2011.17 Y. Ueno, N. Miyaho, S. Suzuki, and K. Ichihara, ”Performance Evaluation of a Disaster Recovery System

and Practical Network System Applications.” IEEE, Aug. 2010, pp. 195?200.18 B. I. Ismail, M. N. M. Mydin, and M. F. Khalid, ”Architecture of scalable backup service for private

cloud”,? in Open Systems (ICOS), 2013 IEEE Conference on. IEEE, 2013, pp. 174?179.19 B. P. Rimal, A. Jukan, D. Katsaros, and Y. Goeleven, ”Architectural Requirements for Cloud Computing

Systems: An Enterprise Cloud Approach”, Journal of Grid Computing, vol. 9, no. 1, pp. 3?26, Mar. 2011.20 ”Google Trends: Arcserve, Bacula, Netbackup popularity search worldwide”, 2016.21 K. Sibbald, ”Main Reference”, 2011. [Online]. Available: http://www.bacula.org/7.

4.x-manuals/en/main/Main Reference.html22 C. Preston, Backup and Recovery: Inexpensive Backup Solutions for Open Systems. ”O’Reilly Media,

Inc.”, 2007.

A Backup as a Service (BaaS) SoftwareSolution

Heitor Medrado de [email protected]

Departamento de Ciencia da ComputacaoInstituto de Ciencias Exatas

Universidade de Brasılia

11 de Setembro de 2017

29

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