Multi–Tenancy Challenges in Storage

Umasankar MukkaraFounder and VP of EngineeringCloudByte Inc.

Feb 05, 2013

Agenda

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1. Multi-Tenancy Evolution

2. Current Status of Storage

3. Requirements of Multi-Tenant Storage

4. CloudStack Roadmap in this storage revolution

The Stack

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The Multi-Tenancy Journey

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The first to multi-tenantis the Application layer

The Multi-Tenancy Journey

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Application Multi-Tenancyis now known as

?

The Multi-Tenancy Journey

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Application Multi-Tenancyis now known as

The Multi-Tenancy Journey

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SaaS examples

The Multi-Tenancy Journey

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The second to multi-tenantis the Network layer

The Multi-Tenancy Journey

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The second to multi-tenantis the Network layer

VLAN

The Multi-Tenancy Journey

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The Big Bang

The Multi-Tenancy Journey

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The Server Virtualization

The Multi-Tenancy Journey

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The next big thing in multi-tenancy revolution is

Storage

The Multi-Tenancy Journey

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The Multi-Tenancy Current Stack

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Why is storage not shared among multiple apps ?

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Why storage is not shared among multiple apps ?

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Every application requires dedicated physical storage, resulting in

storage fragmentation

Database

Storage Array

Tailored forDatabase workload

Video Streaming

Storage Array

Tailored forStreamingworkload

MicroSoftExchange

Storage Array

Tailored for Exchange workload

Technology limitation: Storage endpoints can only be defined in terms of capacity.

So, legacy solutions need dedicated physical storage to meet an application’s

performance demands

Storage is not shared at a Datacenter

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DatabaseVideo Streaming

Multi-TenantStorage

MicroSoftExchange

Requirements of Multi-Tenant Storage

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App3App2

Multi-TenantStorag

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App1

Requirements of Multi-Tenant Storage

Security &Isolation

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App3App2

Multi-TenantStorag

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App1

Requirements of Multi-Tenant Storage

Performance Guarantee

- IOPS- Throughput- Latency

2000 trans/sec 1MB/Sec 3MB/Sec

5000 IOPs

3000 IOPs+ <4ms latency

2MB/sec

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App3App2

Multi-TenantStorag

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App1

Requirements of Multi-Tenant Storage

Backup and storage management control

Every Hour

Every Minute

Synchronous Backup

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App3App2

Multi-TenantStorag

e

App1

Requirements of Multi-Tenant Storage

DelegatedManagement(provision + monitor)

SuperAdmin

SiteAdmin

AccountAdmin

Multi-Tenant Storage at a Datacenter

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CloudByte ElastiStor Cluster

Server Farm

Storage Farm

(With Multi-Tenant Storage)

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A Glimpse of Multi-Tenant Storage

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Storage multi-tenancy in CloudStack

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Source : https://cwiki.apache.org/confluence/display/CLOUDSTACK/Storage+subsystem+2.0#Storagesubsystem2.0-Datamodel%3A