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KT ucloud storage

Two Years of Life with OpenStack
Swift




2012. 08. 11 / Jaesuk Ahn, Cloud OS Dev. Team, Korea Telecom
Who I am.
Jaesuk Ahn (安宰奭)



•   2012 ~ : Cloud OS Dev. Team Lead, KT

•   2011 ~ : OpenStack Korea Community Leader

•   2009 ~ 2011: KT Master Project Manager
     -   Research on Open Source Cloud Tech.
     -   Open Source Community Support


email: js.ahn@kt.com / bluejay.ahn@gmail.com
twitter: @songerie
Who I am.
Who we are.
Korea Telecom (KT)



•   The First ‘Public’ Cloud in Korea (2010年 8月)

•   A Pioneer in Cloud Computing in Korea

•   Common HW and Open SW
    (XenServer, CloudStack,

•   The First Company Commercializing
    OpenStack Swift in Asia

•   Cloud Data Center of High Density and
    Efficiency
Software Adoption



            S/W                           Description                How to Use
     XenServer (Free)                     Hypervisor                 collaboration
        CloudStack              Cloud OS (Management Stack)          collaboration
        NexentaStor                  Storage management              collaboration
          MySQL                            Database                    Building
           Splunk             System Log data gathering & analysis   collaboration
  Nagios, Zabbix, Collected               Monitoring                   Building
                              Automation of Cloud Deployment &
            Chef                                                       Building
                                        Configuration
           Spring                   Application Framework              Building
      OpenStack Swift                   Object Storage                 Building
Internalization (Internal Private Cloud)


 • 8,000 vm, 80% Cost Reduction
                 from Internal IT Infrastructure.


 • Saved 47 Mill. US$ for CAPEX
                 after Jun. 2010 from Internalization with Cloud


 • From Virtualization to Cloud
 • Cultural Changes
Public Cloud (https://ucloudbiz.olleh.com)

  • 1,400 Customers with ucloud biz.
      •     3,000 VMs for SMB, LE and Gov.


ucloud personal      Real time data sync and backup for mobile/internet subscribers

ucloud office        Real time data sync and backup for B2B customers

ucloud Server        Virtual Server with value-added services (LB, Firewall, etc)

ucloud Server+       Automation and Orchestration (Auto-Scaling)

ucloud CDN           Contents delivery network for storage user’s

ucloud VDI           Virtual desktop infrastructure from servers

ucloud Storage       Mass object storage service (OpenStack swift)

ucloud DB            RDB: Relational DB

ucloud Backup        Auto sync and back-up
Building Eco System



 •   Expanding Service to Virtual Private and Hybrid Cloud.

 •   Unified Monitoring Service (like CloudWatch)

 •   Additional Feature like ELB, EIP, Availability Zone etc.

 •   Strengthen Automation and Security

 •   Providing Cloud Application Architecture Guide

 •   Building Eco System with Cloud Incubating Center
     (http://www.cloudincubation.com)
     -   3 Months Free, Providing Office Space and Marketing Support,
         Use Cases, Technical Documentations,Videos.
Who am I ?
Why am I here ?
Let’s Start, Swift!
KT ucloud storage:

OpenStack Swift-based
Object Storage Service




                         11
OpenStack Object Storage (a.k.a Swift) - Capabilities

 •   Redundant, scalable object storage using clusters
     of standardized servers capable of storing petabytes of data
 •   Distributed storage system for static data. Having no
     central "brain" provides greater scalability, redundancy and
     durability.
 •   Reliability: Objects and files are written to multiple disk
     drives spread throughout servers in the data center, with
     the OpenStack software responsible for ensuring data
     replication and integrity across the cluster.
 •   Scalability: Storage clusters scale horizontally simply by
     adding new servers. Because OpenStack uses software logic
     to ensure data replication and distribution across different
     devices, inexpensive commodity hard drives and servers
     can be used in lieu of more expensive equipment.
OpenStack Swift - Basic Architecture




http://swift.kt.com/v1/account   http://swift.kt.com/v1/account/container   http://swift.kt.com/v1/account/container/object
OpenStack Swift - RESTful API
OpenStack Swift - What KT has been added.
                                        KT middleware
          SSL performance tuning        - integrating with KT’s Single
                                          Sign On System
          KT API for management

                                         Metering data for
                                         specific billing requests
Fast Ring Access with SSD                Real Time Usage
                                         Reporting instead of
                                         eventually-consistent
                                         usage reporting
Two separate deployments
2 replications + 3 replications
What KT had to do to commercialize OpenStack Swift
What KT had to do to commercialize OpenStack Swift
                                 Public Object Storage Service

           Commodity Servers, Disks (JBOD), Switches (Arista)

               10G for public service, 1G for management network

                         Similar to Rackspace Reference Architecture (5 zone 3 replication)

               Zone Separation, H/W Scale-Out , 3 system (dev, staging, production)



               Automated Test Environment (Chef-Vagrant/VirtualBox), Production (Git+Chef)

                      Fully Automated Deployment/Configuration based on Chef




                                     KT customized logging for realtime reporting & billing

                                                                CDN integration, advanced CLI tool,
                                                                various language bindings,
                                                                Management API, Cloud Portal
                                KT monitoring system
                                based on Zabbix & Collectd
Commercial Deployment
 •   2010.7 ~ : Research & Study (KT R&D Department)
 •   2011.1Q ~ : Commercial Development/Deployment (KT Cloud Business Unit)
 •   2011.2Q : Commercialization (First in Asia)
KT ucloud storage - architecture

•   5 zone - 3 replications
•   Commodity Hardware based on JBOD
•   currently Diablo version -> preparing upgrade to Folsom version
KT ucloud storage - Service Process


                        1-2. Token GET            S-Node
                                         Arista
                     Arista TOR          TOR                     File
 1-1. Auth Request



                      C-Node
      2-1. Service
     Request with       2-2. Service
     Storage URL          Request
                         (PUT x 3)
                                                                                                File
     Arista
   Aggregation
     Switch

                                                                   File




                                                  Management Processes: replicator, auditor, updater
Automatic Deployment (General)
KT ucloud storage - Automatic Deployment
KT ucloud storage - Automatic Deployment
KT ucloud storage - Client Tools

• Benefits using OpenStack -
   There are many.. many.. client tools to provide.
KT ucloud storage - Use Case

 •   Origin Store for CDN
KT ucloud storage - Use Case




 • Backend-Storage for SNS service
 • Media Archiving
 • Data Backup
 • Snapshot/VM image backup store
 • Backend Storage for Cloud File Service
 • Addition feature in Personal NAS storage
Some Test Data


 • Just for Fun, Result can be different with different
     setting and circumstance.

 •   Upload/Download from/to its own VM service.

 •   What kind of server is used.
     •   ucloudbiz VM CentOS 5.8

     •   ucloudbiz VM Ubuntu 11.04

     •   Amazon EC2 CentOS 5.8

     •   Rackspace Cloud Servers CentOS 5.8

     •   Rackspace Cloud Servers Ubuntu 11.04
Some Test Data
Some Test Data
Some Test Data
What I am trying to say is...




 • Upload, Download, Big Size, Small Size, Many files
     in a container, Many containers, etc.
 • There can be lots of use cases.
 • Gather your usage data and Analyze patterns,
     then focus on what you need to improve the
     most.
Lesson Learned
• OpenStack Swift is a very stable and
  mature software stack.

• However, prepare for the various
  problems, when it deployed on Hardware
• In terms of business,
• People Does Not Know “Object Storage”
• It has been
 • NOT “selling a service”
 • BUT “explaining what it is and how to use”
• and frankly speaking,
 • KT has been experiencing difficulties to
    increase revenue from object storage service.
•   Educate the customer and Find Business Model
    with them.

    •   This is a new concept for the customer.You
        should put “object storage” concept at their
        initial service design

•   Grow your potential customer pool with active
    support

    •   AWS S3 took 3 years. Be patient.
    •   Various promotion for younger developers &
        students
• Finally, OpenStack Community is Fantastic.
Questions?

if you have any question on openstack swift
     deployment, just send me email. :)

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KT ucloud storage, by Jaesuk Ahn

  • 1. KT ucloud storage Two Years of Life with OpenStack Swift 2012. 08. 11 / Jaesuk Ahn, Cloud OS Dev. Team, Korea Telecom
  • 3. Jaesuk Ahn (安宰奭) • 2012 ~ : Cloud OS Dev. Team Lead, KT • 2011 ~ : OpenStack Korea Community Leader • 2009 ~ 2011: KT Master Project Manager - Research on Open Source Cloud Tech. - Open Source Community Support email: js.ahn@kt.com / bluejay.ahn@gmail.com twitter: @songerie
  • 4. Who I am. Who we are.
  • 5. Korea Telecom (KT) • The First ‘Public’ Cloud in Korea (2010年 8月) • A Pioneer in Cloud Computing in Korea • Common HW and Open SW (XenServer, CloudStack, • The First Company Commercializing OpenStack Swift in Asia • Cloud Data Center of High Density and Efficiency
  • 6. Software Adoption S/W Description How to Use XenServer (Free) Hypervisor collaboration CloudStack Cloud OS (Management Stack) collaboration NexentaStor Storage management collaboration MySQL Database Building Splunk System Log data gathering & analysis collaboration Nagios, Zabbix, Collected Monitoring Building Automation of Cloud Deployment & Chef Building Configuration Spring Application Framework Building OpenStack Swift Object Storage Building
  • 7. Internalization (Internal Private Cloud) • 8,000 vm, 80% Cost Reduction from Internal IT Infrastructure. • Saved 47 Mill. US$ for CAPEX after Jun. 2010 from Internalization with Cloud • From Virtualization to Cloud • Cultural Changes
  • 8. Public Cloud (https://ucloudbiz.olleh.com) • 1,400 Customers with ucloud biz. • 3,000 VMs for SMB, LE and Gov. ucloud personal Real time data sync and backup for mobile/internet subscribers ucloud office Real time data sync and backup for B2B customers ucloud Server Virtual Server with value-added services (LB, Firewall, etc) ucloud Server+ Automation and Orchestration (Auto-Scaling) ucloud CDN Contents delivery network for storage user’s ucloud VDI Virtual desktop infrastructure from servers ucloud Storage Mass object storage service (OpenStack swift) ucloud DB RDB: Relational DB ucloud Backup Auto sync and back-up
  • 9. Building Eco System • Expanding Service to Virtual Private and Hybrid Cloud. • Unified Monitoring Service (like CloudWatch) • Additional Feature like ELB, EIP, Availability Zone etc. • Strengthen Automation and Security • Providing Cloud Application Architecture Guide • Building Eco System with Cloud Incubating Center (http://www.cloudincubation.com) - 3 Months Free, Providing Office Space and Marketing Support, Use Cases, Technical Documentations,Videos.
  • 10. Who am I ? Why am I here ? Let’s Start, Swift!
  • 11. KT ucloud storage: OpenStack Swift-based Object Storage Service 11
  • 12. OpenStack Object Storage (a.k.a Swift) - Capabilities • Redundant, scalable object storage using clusters of standardized servers capable of storing petabytes of data • Distributed storage system for static data. Having no central "brain" provides greater scalability, redundancy and durability. • Reliability: Objects and files are written to multiple disk drives spread throughout servers in the data center, with the OpenStack software responsible for ensuring data replication and integrity across the cluster. • Scalability: Storage clusters scale horizontally simply by adding new servers. Because OpenStack uses software logic to ensure data replication and distribution across different devices, inexpensive commodity hard drives and servers can be used in lieu of more expensive equipment.
  • 13. OpenStack Swift - Basic Architecture http://swift.kt.com/v1/account http://swift.kt.com/v1/account/container http://swift.kt.com/v1/account/container/object
  • 14. OpenStack Swift - RESTful API
  • 15. OpenStack Swift - What KT has been added. KT middleware SSL performance tuning - integrating with KT’s Single Sign On System KT API for management Metering data for specific billing requests Fast Ring Access with SSD Real Time Usage Reporting instead of eventually-consistent usage reporting Two separate deployments 2 replications + 3 replications
  • 16. What KT had to do to commercialize OpenStack Swift
  • 17. What KT had to do to commercialize OpenStack Swift Public Object Storage Service Commodity Servers, Disks (JBOD), Switches (Arista) 10G for public service, 1G for management network Similar to Rackspace Reference Architecture (5 zone 3 replication) Zone Separation, H/W Scale-Out , 3 system (dev, staging, production) Automated Test Environment (Chef-Vagrant/VirtualBox), Production (Git+Chef) Fully Automated Deployment/Configuration based on Chef KT customized logging for realtime reporting & billing CDN integration, advanced CLI tool, various language bindings, Management API, Cloud Portal KT monitoring system based on Zabbix & Collectd
  • 18. Commercial Deployment • 2010.7 ~ : Research & Study (KT R&D Department) • 2011.1Q ~ : Commercial Development/Deployment (KT Cloud Business Unit) • 2011.2Q : Commercialization (First in Asia)
  • 19. KT ucloud storage - architecture • 5 zone - 3 replications • Commodity Hardware based on JBOD • currently Diablo version -> preparing upgrade to Folsom version
  • 20. KT ucloud storage - Service Process 1-2. Token GET S-Node Arista Arista TOR TOR File 1-1. Auth Request C-Node 2-1. Service Request with 2-2. Service Storage URL Request (PUT x 3) File Arista Aggregation Switch File Management Processes: replicator, auditor, updater
  • 22. KT ucloud storage - Automatic Deployment
  • 23. KT ucloud storage - Automatic Deployment
  • 24. KT ucloud storage - Client Tools • Benefits using OpenStack - There are many.. many.. client tools to provide.
  • 25. KT ucloud storage - Use Case • Origin Store for CDN
  • 26. KT ucloud storage - Use Case • Backend-Storage for SNS service • Media Archiving • Data Backup • Snapshot/VM image backup store • Backend Storage for Cloud File Service • Addition feature in Personal NAS storage
  • 27. Some Test Data • Just for Fun, Result can be different with different setting and circumstance. • Upload/Download from/to its own VM service. • What kind of server is used. • ucloudbiz VM CentOS 5.8 • ucloudbiz VM Ubuntu 11.04 • Amazon EC2 CentOS 5.8 • Rackspace Cloud Servers CentOS 5.8 • Rackspace Cloud Servers Ubuntu 11.04
  • 31. What I am trying to say is... • Upload, Download, Big Size, Small Size, Many files in a container, Many containers, etc. • There can be lots of use cases. • Gather your usage data and Analyze patterns, then focus on what you need to improve the most.
  • 33. • OpenStack Swift is a very stable and mature software stack. • However, prepare for the various problems, when it deployed on Hardware
  • 34. • In terms of business, • People Does Not Know “Object Storage”
  • 35. • It has been • NOT “selling a service” • BUT “explaining what it is and how to use” • and frankly speaking, • KT has been experiencing difficulties to increase revenue from object storage service.
  • 36. Educate the customer and Find Business Model with them. • This is a new concept for the customer.You should put “object storage” concept at their initial service design • Grow your potential customer pool with active support • AWS S3 took 3 years. Be patient. • Various promotion for younger developers & students
  • 37. • Finally, OpenStack Community is Fantastic.
  • 38. Questions? if you have any question on openstack swift deployment, just send me email. :)