© 2013 Cisco and/or its affiliates. All rights reserved. 1© 2013 Cisco and/or its affiliates. All rights reserved. 1

Openstack for VMware AdminsMaish Saidel-KeesingPlatform Architect, Cisco

April 10, 2023

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Voice your opinion ….

• Share your thoughts on your favorite social medium

#OpenstackIL #Openstack #VMware

• Please participate, feel free to ask questions

• Take pictures and share

• The presentation will be available after the event

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Who are you?

• Long history with VMware

• IT Architect

• Blogger (Technodrone)

• @maishsk

• Co-Author of VMware vSphere Design

• OpenStack Cloud Computing Cookbook

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Who Needs This Anyway?• Openstack is the same as

VMware

• If you know one platform you know them all.

• Information is easy to come by.

“First they ignore you, then they laugh at you, then they fight you, then you win.”Mahatma Ghandi

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Oxymoron - An oxymoron is a figure of speech that juxtaposes apparently contradictory elements (it is not however a contradiction in terms)

(Source - http://cloudarchitectmusings.com)

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Your Typical VMware Environment

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And Your Typical Openstack Environment

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At least someone got the point

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So how do we map all the parts?

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Openstack

Instances Virtual Machines

VMware

Node

Volume Store

Image Store

Instance

Local Disk

vda

vdb

vdc

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Openstack

Flavors Custom Virtual Machines

VMware

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Openstack

Image

Glance

Copied (once) locally to each host (multiple copies)

Template

vCenter

Only one copy exists

VMware

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Openstack

Storage

• Local virtual SCSI device

• Ephemeral – lost when VM is terminated

• Block – data is preserved (Cinder)

• Object storage (Swift)

Storage

• Local virtual SCSI(ide) device

• Always persistent

• NFS/VMFS (local/Central)

VMware

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Openstack

• Live Migration

• -----

• -----

• -----

• -----

• vMotion

• SvMotion (SDRS)

• VMware HA / AppHA

• VASA / VAAI

• Shared Disk (clustering)

VMware

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Openstack

• Nova Scheduler

• OpenvSwitch / Neutron

• DRS

• Distributed vSwitch

VMware

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Redundancy• Can be done at all levels – and should

• Cinder• Swift• Neutron• Nova• Glance• MySQL

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Potential Bottlenecks/SPOF• Network Node provides all external connectivity to the outside

world

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Link-O-Rama

• Kenneth Hui (@hui_kenneth)OpenStack ….. For vSphere Admins, Part X

• VOVA (vSphere OpenStack Virtual Appliance)

• Bridging the Gap: Explaining OpenStack to VMware Administrators

• My Blog – http://technodrone.blogspot.com

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Thank you. Questions?