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[OpenStack-docs] "logical" vs "conceptual" architecture of Openstack - what does it mean?

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The admin guide has two pages showing the conceptual[1] and the logical[2]
architecture of OpenStack. I don't understand the difference between the
two; the diagrams on the two pages both show the core services; the
difference is that the "logical" diagram is much more detailed.

Can anybody provide insight what this distinction "logical/conceptual" is
supposed to mean? I am asking because I plan to rewrite the text on the
"logical" page.

Bernd

[1]
http://docs.openstack.org/admin-guide-cloud/content/conceptual-architecture.
html
[2]
http://docs.openstack.org/admin-guide-cloud/content/logical-architecture.htm
l


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asked May 4, 2015 in openstack-docs by Bernd_Bausch (540 points)   1 3

4 Responses

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On 05/04/2015 01:53 PM, Bernd Bausch wrote:
Can anybody provide insight what this distinction "logical/conceptual" is
supposed to mean? I am asking because I plan to rewrite the text on the
"logical" page.

In my understanding conceptual is the top view and logical is the bottom
view.

Conceptual only shows the components as a black box (Neutron for
networking, Nova for compute, ..).

Logical shows the comonents as a white box.

Btw. the logcial architecture graphic should be reworked. Would be nice
to use the same style like for the conceptual architecture graphic there.

Christian.

--
Christian Berendt
Cloud Computing Solution Architect
Mail: berendt@b1-systems.de

B1 Systems GmbH
Osterfeldstraße 7 / 85088 Vohburg / http://www.b1-systems.de
GF: Ralph Dehner / Unternehmenssitz: Vohburg / AG: Ingolstadt,HRB 3537


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responded May 4, 2015 by christian_at_berendt (3,780 points)   3 8
0 votes

Is there a template that was used? Pretty sure those were created by Ken
Pepple art back in the day but I'd happy to update them with a nice Visio
diagram 2d or iso.
On May 4, 2015 4:59 AM, "Christian Berendt" christian@berendt.io wrote:

On 05/04/2015 01:53 PM, Bernd Bausch wrote:

Can anybody provide insight what this distinction "logical/conceptual" is
supposed to mean? I am asking because I plan to rewrite the text on the
"logical" page.

In my understanding conceptual is the top view and logical is the bottom
view.

Conceptual only shows the components as a black box (Neutron for
networking, Nova for compute, ..).

Logical shows the comonents as a white box.

Btw. the logcial architecture graphic should be reworked. Would be nice
to use the same style like for the conceptual architecture graphic there.

Christian.

--
Christian Berendt
Cloud Computing Solution Architect
Mail: berendt@b1-systems.de

B1 Systems GmbH
Osterfeldstraße 7 / 85088 Vohburg / http://www.b1-systems.de
GF: Ralph Dehner / Unternehmenssitz: Vohburg / AG: Ingolstadt,HRB 3537


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responded May 5, 2015 by Adam_Lawson (7,540 points)   4 7 12
0 votes

On 05/05/2015 03:55 AM, Adam Lawson wrote:
Is there a template that was used? Pretty sure those were created by Ken
Pepple art back in the day but I'd happy to update them with a nice
Visio diagram 2d or iso.

The logical architecture graphic was created 2 years ago by Ken Pepple.

http://docs.openstack.org/admin-guide-cloud/content/figures/2/figures/openstack-arch-havana-logical-v1.jpg

I think it would be nice to use the same design for
openstack-arch-havana-logical-v1.jpg like for
openstackhavanaconceptual_arch.png.

http://docs.openstack.org/admin-guide-cloud/content/figures/1/figures/openstack_havana_conceptual_arch.png

The source for openstackhavanaconceptual_arch.png should be available
in the following archive:

https://github.com/openstack/openstack-manuals/blob/master/doc/common/figures/openstack-arch-havana-v1.graffle.zip

It looks like we do not have the sources for the file
https://github.com/openstack/openstack-manuals/blob/master/doc/common/figures/openstack-arch-havana-logical-v1.jpg.

I think that the second graphic (conceptual) has to be extented (Havana
ist out of date) and the first graphic (logical) has to be reworked.

HTH, Christian.

--
Christian Berendt
Cloud Solution Architect
Mail: berendt@b1-systems.de

B1 Systems GmbH
Osterfeldstraße 7 / 85088 Vohburg / http://www.b1-systems.de
GF: Ralph Dehner / Unternehmenssitz: Vohburg / AG: Ingolstadt,HRB 3537


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responded May 5, 2015 by christian_at_berendt (3,780 points)   3 8
0 votes

The Ops guide has the logical diagram in a somewhat easier to read form: http://docs.openstack.org/openstack-ops/content/architecture.html

Bernd Bausch
berndbausch@gmail.com
+81 80 8892 5564 mobile

Am May 5, 2015 um 14:56 schrieb Christian Berendt christian@berendt.io:

On 05/05/2015 03:55 AM, Adam Lawson wrote:
Is there a template that was used? Pretty sure those were created by Ken
Pepple art back in the day but I'd happy to update them with a nice
Visio diagram 2d or iso.

The logical architecture graphic was created 2 years ago by Ken Pepple.

http://docs.openstack.org/admin-guide-cloud/content/figures/2/figures/openstack-arch-havana-logical-v1.jpg

I think it would be nice to use the same design for openstack-arch-havana-logical-v1.jpg like for openstackhavanaconceptual_arch.png.

http://docs.openstack.org/admin-guide-cloud/content/figures/1/figures/openstack_havana_conceptual_arch.png

The source for openstackhavanaconceptual_arch.png should be available in the following archive:

https://github.com/openstack/openstack-manuals/blob/master/doc/common/figures/openstack-arch-havana-v1.graffle.zip

It looks like we do not have the sources for the file https://github.com/openstack/openstack-manuals/blob/master/doc/common/figures/openstack-arch-havana-logical-v1.jpg.

I think that the second graphic (conceptual) has to be extented (Havana ist out of date) and the first graphic (logical) has to be reworked.

HTH, Christian.

--
Christian Berendt
Cloud Solution Architect
Mail: berendt@b1-systems.de

B1 Systems GmbH
Osterfeldstraße 7 / 85088 Vohburg / http://www.b1-systems.de
GF: Ralph Dehner / Unternehmenssitz: Vohburg / AG: Ingolstadt,HRB 3537


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responded May 5, 2015 by Bernd_Bausch (540 points)   1 3
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