Bug 1414958

Summary:	Documentation: Minimum requirement - need to set the minimum amount of RAM
Product:	Red Hat OpenStack	Reporter:	Alexander Chuzhoy <sasha>
Component:	documentation	Assignee:	Dan Macpherson <dmacpher>
Status:	CLOSED CURRENTRELEASE	QA Contact:	RHOS Documentation Team <rhos-docs>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	10.0 (Newton)	CC:	dmacpher, mburns, sasha, srevivo
Target Milestone:	async	Keywords:	ZStream
Target Release:	10.0 (Newton)
Hardware:	Unspecified
OS:	Unspecified
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Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2017-01-26 21:00:03 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Alexander Chuzhoy 2017-01-19 19:51:56 UTC

Checking the minimum requirements of controllers here:
https://access.redhat.com/documentation/en/red-hat-openstack-platform/10/paged/director-installation-and-usage/chapter-2-requirements


"
Memory

    The amount of recommended memory depends on the number of CPU cores. Use the following calculations as guidance:

        Controller RAM minimum calculation:
            Use 1.5 GB of memory per core. For example, a machine with 48 cores should have 72 GB of RAM. 

        Controller RAM recommended calculation:
            Use 3GB of memory per core. For example, a machine with 48 core should have 144 GB of RAM 
"

We should add a note to have at least 16GB of ram (even on nodes with 1 or 2 CPUs).

*Note: I ran into https://bugzilla.redhat.com/show_bug.cgi?id=1414900 when I had controllers with 8GB and 4 CPUs

Comment 2 Dan Macpherson 2017-01-20 01:34:08 UTC

Hi Sasha,

This should be live now and also backported to OSP9:

https://access.redhat.com/documentation/en/red-hat-openstack-platform/10/paged/director-installation-and-usage/chapter-2-requirements

Was there anything further required for this BZ?

Comment 3 Alexander Chuzhoy 2017-01-25 20:50:43 UTC

No, that's it. Thank you!

Comment 4 Dan Macpherson 2017-01-26 21:00:03 UTC

Thanks, Sasha! Closing this BZ.