2. CloudFounders
vRUN
Converged infrastructure that
combines the benefits of the
hyperconverged approach yet
offers independent compute
and storage scaling.
Open vStorage
Core Storage Technology
FlexCloud
A hosted private cloud based
on the vRun technology
available at multiple data
centers world-wide.
A product by CloudFounders
3. 2 Types of Storage
Block 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!
4. 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)
5. The architecture
OpenStack
Scale-outVM VM
VM VM
SSDSSD
SSDSSD
Open
vStorage
Open
vStorage
OpenStack
VM VM
VM VM
SSDSSD
SSDSSD
Open
vStorage
Open
vStorage
OpenStack
VM VM
VM VM
SSDSSD
SSDSSD
Open
vStorage
Open
vStorage
Unified Namespace
S3 compatible Object Storage
or a pool of (ethernet) drives
S3 compatible Object Storage
or 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
6. 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!
8. 2 Types of Storage
Block 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!
9. 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
Storage
Node
Storage
Node
Storage
Node
Storage
Node
Storage
Node
Storage
Node
10. 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, …
11. Cinder with local disks has some problems ...
I S C S I
NovaCinder
ManagementN
ightmare!
12. A traditional OpenStack setup
Nova
Instance
Management
Nova
Instance
Management
Swift
Object Storage
Swift
Object Storage
Cinder
Block Storage
Cinder
Block Storage
Glance
Image store
Glance
Image 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?!
13. “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
14. Open vStorage & OpenStack
Nova
Instance
Management
Nova
Instance
Management
Swift
Object Storage
Swift
Object Storage
Cinder
Block Storage
Cinder
Block Storage
Glance
Image store
Glance
Image store
VMVM
Provides
volume for
Provisions
Stores
image in
Stores backups in
Provides
image for
Provides
disk spaceOpen vStorageOpen vStorageConverts Object Storage
into Block Storage
16. 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
