Leveraging Azure and Cello for Delivering Highly Scalable Mu

Leveraging Azure and Cello for

Delivering Highly Scalable Multi-Tenant

SaaS Solutions

The smartest and fastest way to build configurable, high quality applications that can be deployed on any cloud…

Agenda

Understanding Multi-Tenancy Models

Why Scalability is critical for Multi-Tenant Architecture?

What is Cello and How does Azure and Cello work together?

Advantages of Azure and Cello combination

Deployment in Azure

Benefits for ISVs

SaaS Life Cycle Management Solution

Multi-Tenancy Models

Single Tenant

Multi Tenant

Single and Multi Tenant are the two approaches that ISVs typically take for delivering their SaaS solution.

Single Tenant Solutions typically involve setting up separate instances for each customer

Multi Tenant Solutions service multiple customers (tenant) from a single instance, there by sharing all the hardware resources


Scalability in Multi-Tenant Architecture

Why Scalability is critical for Multi-Tenant architecture?

Multi-Tenant systems experience heavy load due to the fact that single instance serves multiple customers

Load on the system is going to be directly proportional to the number of customers serviced.

SaaS Business model is only profitable with higher number of customers. Therefore, it’s suicidal if you are not building a multi-tenant architecture that is scalable at all levels.


Azure & Cello

How does Azure and Cello work Together?


Azure & Cello – Complement Each Other


CacheActive

DirectoryStorage Database

Traffic Manager

Azure Watch

Auto ScaleOnline

Services

For ISVsCello provides the SaaS

Engineering/Management features Azure provides the infrastructure

management features.

What is Cello?


Techcello is a cloud-ready, SaaS Application Development Framework for Azure platform

Can be used to, Build new SaaS products Convert single-tenant Apps to Multi-

Tenant Migrate on premise products to SaaS

model

Cello framework is delivered as a set of libraries and APIs that can be easily integrated to your product

Applications built using Cello can be easily deployed in Azure

Cello contains building blocks for developing, monetizing and servicing ISV’s customers.

2012

Cello – Technology Stack

Technology Stack


Production Environment

Windows Server 2012

IIS 8.0

SQL Azure

AppFabric/Azure Cache

.NET (v4.5)

• C#, ASP.NET, • MVC, WIF

Middle Layer

• EF 6.0• WCF• AppFabric Cache/Azure Cache

Database

• SQL Azure

Development Environment

Windows 7/8

Visual Studio 2012

Advantages of Cello and Azure Combination

Azure and Cello combination gives a perfect platform for ISVs to build their product.

Cello brings in a wide range of engineering building blocks, operational modules and subscription management tools. In other words, Cello offers the complete SaaS Life Cycle Management Solution.

ISVs will have the option of exposing some of the Cello administration features to tenants in the form self-servicing portal. This can bring down significant amount of support team load.

Azure on the other hand provides infrastructure and application life cycle management in the form of deployment support, monitoring tools, online services, etc.

While Cello strengthens the product with a scalable and robust architecture, Azure provides a scalable and secure infrastructure.SaaS Life Cycle Management Solution

Typical Deployment in Azure

Web Roles

Worker Roles

Auto Scale

Traffic Manager

Cache

Active Directory

Table/BLOB

SQL Azure

SQL Azure

SQL Azure

Web Role

Product

Web Pages Binaries

Cello

Web Pages Binaries

Worker Role

Product

Services Binaries

Cello

Services Binaries

SQL Azure

Product

Tables

Cello

Tables

Product Data

Other Services

Auto Scale

Azure Services

Cello Data


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Typical Deployment in Azure

ISVs can choose to deploy their product in either web role/worker role model or they can also choose the VM model (which is vanilla IaaS).

Cello is delivered in the form of APIs and libraries, which has to be deployed along with the product. Web role will contain the Cello web pages and binaries. Cello services will have to be deployed in Worker role.

Cello data is maintained separately and will have to be setup in SQL Azure database. However, the product database can point to any storage technology offered by Azure.

Product can leverage all the services offered by Azure platform. Cello does not bring in any limitations for the product.


Cello Offers Unlimited Scalability

Web Server

Database Server

Application Database

Cello Database

Single Shard

Load Balanced Web Servers

Database Server


Cello Database

Double Shard

Database Server


Common for all tenants

Tenant 1 to X

Tenant (X+1) to Y








Cello Offers Unlimited Scalability

Cello architecture is designed for unlimited scalability at all layers.

Products built using Cello design norms by default inherit the capability to dynamically scale out without any coding efforts.

ISVs can initially start with a single sharded model. However, when the load increases they can easily add additional resources in the form of machines, databases, storage etc.

Azure Watch can be effectively utilized to monitor the load of the systems and once the threshold is reached it will automatically add additional machines.

Cello leverages Azure Data Sharding feature by abstracting the database from Developers. This allows ISVs to shard by tenants and/or modules.


Tenant and Module Based Sharding

Tenant 1 to x

Load Balanced App Servers

Tenant x+1 to y Tenant y+1 to z Dedicated DB

User Load

Tenant 1 to x Tenant x+1 to y Tenant y+1 to z Dedicated DB

Module B

Module A





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Benefits for ISVs

“The Techcello approach is likely to be ideal for companies -especially independent software vendors - that need to get to market relatively quickly with a multitenant SaaS solution and would like a substantial shortcut while avoiding lock-in to a proprietary application platform as a service (aPaaS)” - Gartner Research


Contact Us


Web : http://www.techcello.com

General Enquiry : [email protected]

Support Enquiry : [email protected]

Sales Queries: [email protected]

Register here for a Self-Guided Live Tour of Cello

http://resources.techcello.com/techcello-demo-live-access

http://www.techcello.com/

mailto:[email protected]



Documents

Leveraging Azure and Cello for Delivering Highly Scalable Mu