Wim Provoost (@wimpers_be)Open vStorage (@openvstorage)

http://www.openvstorage.com

A product by CloudFounders

CloudFounders

vRUNConverged infrastructure that combines the benefits of the

hyperconverged approach yet offers independent compute

and storage scaling.

Open vStorage Core Storage Technology

FlexCloudA hosted private cloud based

on the vRun technology available at multiple data

centers world-wide.

A product by CloudFounders

2 Types of StorageBlock Storage:•EMC, Netapp, ...•Virtual Machines•High perfomance, low latency •Small capacity, typically fixed size•Expensive•Zero-copy snapshots, linked clones•$/IOPS

Object Storage:•Swift, Cleversafe, ...•Unstructured data•Low performance, high latency•Large capacity, scalable •Inexpensive, commodity hardware•No high-end datamanagement features•$/GB

What is needed is a technology which offers Virtual Machines the performance and high-end features of a SAN but also the benefits

of the low cost and scale-out capabilities of object storage!

What is needed is a technology which offers Virtual Machines the performance and high-end features of a SAN but also the benefits

of the low cost and scale-out capabilities of object storage!

What is Open vStorage

Open vStorage is an open-source superfast, scalable, VM-centric block storage solution for OpenStack on top of a pool of disks or Object Storage.

• Software-defined storage that runs on the host• Fault Tolerance and Reliability in software (no

dual controller needed)• VM centric architecture• Unlimited Snapshots• Tier 1 in flash/SSD on host (deduplicated)

• Flexible Storage Layout– HyperConverged– JBOD– Kinetic – Open Ethernet Drives– Object Storage

• Massive Scalability (100s of nodes 10,000+ VMs in a single cluster)

The architecture

OpenStack

Scale-outVM VM

VM VM

SSDSSDSSDSSD

OpenvStorageOpenvStorage

OpenStack

VM VM

VM VM

SSDSSDSSDSSD

OpenvStorageOpenvStorage

OpenStack

VM VM

VM VM

SSDSSDSSDSSD

OpenvStorageOpenvStorage

Unified Namespace

S3 compatible Object Storageor a pool of (ethernet) drives

S3 compatible Object Storageor a pool of (ethernet) drives

Tier 1 - Location Based•Read/Write cache on SSD•Block based storage•Thin provisioning•VM Centric•Distributed Transaction Log

Tier 1 - Location Based•Read/Write cache on SSD•Block based storage•Thin provisioning•VM Centric•Distributed Transaction Log

Tier 2 -Time Based •Zero Copy Snapshot•Zero Copy Cloning•Continuous data protection•Redundant storage•Scale-out

Tier 2 -Time Based •Zero Copy Snapshot•Zero Copy Cloning•Continuous data protection•Redundant storage•Scale-out

Changes in Open vStorage 2.1

• Improved performance – 50-70k iops per host– Multiple caching devices

• HyperConverged!!!!!!– Encryption, compression, forward error correction– Manage a pool of SATA drives as Tier2 storage

• Focus on OpenStack/KVM• Improved hardening against failure

– Seamless volume migration (no metadata rebuild)

Release date: now!

How does OpenStack and Open vStorage play along

2 Types of StorageBlock Storage:•EMC, Netapp, ...•Virtual Machines•High perfomance, low latency •Small capacity, typically fixed size•Expensive•Zero-copy snapshots, linked clones•$/IOPS

Object Storage:•Swift, Cleversafe, ...•Unstructured data•Low performance, high latency•Large capacity, scalable •Inexpensive, commodity hardware•No high-end datamanagement features•$/GB

What is needed is a technology which offers Virtual Machines the performance and high-end features of a SAN but also the benefits

of the low cost and scale-out capabilities of object storage!

What is needed is a technology which offers Virtual Machines the performance and high-end features of a SAN but also the benefits

of the low cost and scale-out capabilities of object storage!

OpenStack Swift: some highlights

• Designed to store unstructered data in a cost-effictive way– Use low cost, large capacity SATA disks– Increase capacity by adding more disk/servers when needed– Increase performance by adding spindles/proxies

• High reliability by distributing content across disks– 3 way replication– Erasure coding (on the roadmap)

• Easy to manage (no knowledge needed about RAID or volumes)

ProxyProxy ProxyProxy

StorageNode

StorageNode

StorageNode

StorageNode

StorageNode

StorageNode

Cinder: some highlights

• Cinder provides an infrastructure/API for managing volumes on OpenStack. – Volume create, delete, list, show, attach, detach, extend– Snapshot create, delete, list, show – Backups create, restore, delete, list, show – Manage volume types, quotas– Migration

• By default Cinder uses local disks but plugins allow additional storage solutions to be used:– External appliances: EMC, Netapp, SolidFire– Software solutions: GlusterFS, Ceph, …

Cinder with local disks has some problems ...

I S C S I

Nova

Cinder

ManagementNightmare!

A traditional OpenStack setup

NovaInstance

Management

NovaInstance

Management

SwiftObject Storage

SwiftObject Storage

CinderBlock Storage

CinderBlock Storage

GlanceImage store

GlanceImage store

VMVM

Provides volume for

Provisions

Stores image in

Stores backups in

Provides image for

SAN, NAS, ...SAN,

NAS, ...

Provides disk space

2 storage platforms?! 2 storage platforms?!

“Swift under Cinder”?

• Eventual consistency (the CAP Theorem)

• Latency & performance– VMs require low latency and high performance– Object stores are developed to contain lots of data

(large disks, low performance)– Additional latency as Object Store is on the Local LAN instead of attached to the host like DAS

• Different Management Paradigms– Object Stores understand Objects <> Hypervisors understand blocks, files

Open vStorage & OpenStack

NovaInstance

Management

NovaInstance

Management

SwiftObject Storage

SwiftObject Storage

CinderBlock Storage

CinderBlock Storage

GlanceImage store

GlanceImage store

VMVM

Provides volume for

Provisions

Stores image in

Stores backups in

Provides image for

Provides disk space Open vStorage Open vStorageConverts Object Storage

into Block Storage

Get Started with Open vStorage

Get the software

• The unrestricted open-source version– Open vStorage as open-source software is released under the Apache License, Version 2.0– Backends: S3 compatible object storage (Swift, Ceph, ...)– Free community help-forum : https://groups.google.com/forum/?hl=en#!forum/open-vstorage– You can contribute: https://bitbucket.org/openvstorage/

• Free community version– Open-source version + limited hyperconverged backend (max. 49 volumes, 4 nodes, 16 disks)– Free community help-forum : https://groups.google.com/forum/?hl=en#!forum/open-vstorage

• Paying version with 24/7 support (Open vStorage & OpenStack)– GA release June 2015