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Presentation By:
Roozbeh Shafiee
Autumn 2015
IRAN OpenStack Users Group
MASTERING
OPENSTACK
(Episode 09)
Storage Decisions

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IRAN Community| OpenStack.ir
Agenda:
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Choosing Storage Backends
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Proprietary Storage Solutions
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Open Source Storage Solutions
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Iran OpenStack Community
OpenStack Storage Decisions

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IRAN Community| OpenStack.ir
Choosing Storage Backends
OpenStack Storage Decisions

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IRAN Community| OpenStack.ir
Choosing Storage Backends
Users will indicate different needs for their cloud use cases:
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Some may need fast access to many objects that do not change often, or want
to set a time-to-live (TTL) value on a file.
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Others may access only storage that is mounted with the file system itself, but
want it to be replicated instantly when starting a new instance.
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For other systems, ephemeral storage—storage that is released when a VM
attached to it is shut down is the preferred way.
OpenStack Storage Decisions

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IRAN Community| OpenStack.ir
Choosing Storage Backends
When you select storage backends, ask the following questions on behalf of
your users:
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Do my users need block storage?
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Do my users need object storage?
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Do I need to support live migration?
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Should my persistent storage drives be contained in my compute nodes, or
should I use external storage?
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What is the platter count I can achieve? Do more spindles result in better
I/O despite network access?
OpenStack Storage Decisions

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IRAN Community| OpenStack.ir
Choosing Storage Backends
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Which one results in the best cost-performance scenario I’m aiming for?
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How do I manage the storage operationally?
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How redundant and distributed is the storage? What happens if a storage
node fails? To what extent can it mitigate my data-loss disaster scenarios?
OpenStack Storage Decisions

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IRAN Community| OpenStack.ir
Proprietary Storage Solutions
OpenStack Storage Decisions

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IRAN Community| OpenStack.ir
Proprietary Storage Solutions
There are a number of proprietary solutions that are officially supported by
OpenStack Storage. They are offered by the following vendors:
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IBM (Storwize family/SVC, XIV)
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HP
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NetApp
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Nexenta
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SolidFire
OpenStack Storage Decisions

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IRAN Community| OpenStack.ir
Open Source Storage Solutions
OpenStack Storage Decisions

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IRAN Community| OpenStack.ir
Open Source Storage Solutions
To deploy your storage by using only commodity hardware, you can use a
number of open-source solutions:
Ceph – Use as Object Storage, Block Storage and File Level
GlusterFS - Use as Object Storage and File Level
Swift - Use as Object Storage
ZFS - Use as Block Storage
LVM - Use as Block Storage
NFS - Use as Block Storage and File Level
OpenStack Storage Decisions

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IRAN Community| OpenStack.ir
Factors to Choose a Storage
You need to decide whether you want to support object storage in your cloud.
The two common use cases for providing object storage in a compute cloud are:
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To provide users with a persistent storage mechanism
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As a scalable, reliable data store for virtual machine images
OpenStack Storage Decisions

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IRAN Community| OpenStack.ir
Iran OpenStack Community
OpenStack Storage Decisions

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IRAN Community| OpenStack.ir
Stay in Touch and Join Us:
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Home Page: OpenStack.ir
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Meetup Page: Meetup.com/Iran-OpenStack
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Mailing List: OpenStack-ir@Lists.OpenStack.org
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Twitter: @OpenStackIR , #OpenStackIRAN
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IRC Channel on FreeNode: #OpenStack-ir
OpenStack Storage Decisions

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Roozbeh Shafiee
Iran OpenStack Community Manager
Roozbeh@OpenStack.ir
OpenStack.ir
Thank You
We need to work together to build a better community