Bug 1371546

Summary:	[Docs][Admin] Modifying a VM instance does not affect existing VMs
Product:	Red Hat Enterprise Virtualization Manager	Reporter:	Andrei Stepanov <astepano>
Component:	Documentation	Assignee:	Avital Pinnick <apinnick>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Tahlia Richardson <trichard>
Severity:	unspecified	Docs Contact:
Priority:	medium
Version:	4.0.3	CC:	adahms, apinnick, astepano, bugs, djasa, lbopf, lsurette, rbalakri, srevivo, tjelinek, tpelka, ykaul, ylavi
Target Milestone:	ovirt-4.1.6	Keywords:	Triaged
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Hardware:	Unspecified
OS:	Unspecified
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Last Closed:	2018-02-25 08:03:17 UTC	Type:	Bug
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oVirt Team:	Docs	RHEL 7.3 requirements from Atomic Host:
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Description Andrei Stepanov 2016-08-30 12:55:12 UTC

According to the RHV documentation:

https://access.redhat.com/documentation/en/red-hat-virtualization/4.0/single/administration-guide/#sect-Global_Configuration

Section: ⁠1.1.4.2. Editing Instance Types

Quotation:

"""The configuration of the instance type is updated. New virtual machines and restarted existing virtual machines based on the instance type will use the new configuration.
"""

Above quotation is false.

ovirt-engine-4.0.3-0.1.el7ev.noarch

==== Part 1
1. Log in admin portal
2. Turn off a VM & edit it.
3. Select "General" tab.
4. Assign for the VM some "instance type", for example "Large".
5. Go to "Console" tab and remember "Video type" and "Graphics protocol" values.
6. Press OK.
==== Part 2
7. At the top-right press "Configure" 
8. Select "Edit instance type"
9. Select instance profile you have selected on the step 4.
10. Press "Edit"
11. Select "Console" tab.
12. Change "video type"
13. Change "graphic type"
=== Part 3
14. Select the same VM from "Part 1"
15. Got to "Edit"
16. Select "Console" tab

Parameters "Video type" and "Graphics protocol" are not updated accordingly to 
selected VM instance type. Which contradicts to the official documentation.

Comment 1 Tomas Jelinek 2016-09-01 09:49:51 UTC

right, it is a bug in documentation, changing to documentation bug.
Correctly it should contain something like this:
The existing VMs based on this instance type will have the fields marked by the chain icon updated on instance type update.

Comment 2 Yaniv Lavi 2017-01-31 08:22:11 UTC

But what if this is CPU or memory? 
Won't this hotplug memory or CPU if possible?

Comment 3 Yaniv Lavi 2017-01-31 08:24:03 UTC

We should add:
Once a instance type is updated. VM that are running with this instance type applied will have configuration update icon. Once restarted the new configuration will be updated and applied.

Comment 4 Tomas Jelinek 2017-02-16 07:39:09 UTC

(In reply to Yaniv Dary from comment #2)
> But what if this is CPU or memory? 
> Won't this hotplug memory or CPU if possible?

no, it will only set it to next run configuration

(In reply to Yaniv Dary from comment #3)
> We should add:
> Once a instance type is updated. VM that are running with this instance type
> applied will have configuration update icon. Once restarted the new
> configuration will be updated and applied.

correct

Comment 11 Avital Pinnick 2018-02-25 08:03:17 UTC

Updated documents:

https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.2-beta/html-single/administration_guide/#Editing_Instance_Types

https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.1/html-single/administration_guide/#Editing_Instance_Types

https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.0/html-single/administration_guide/#Editing_Instance_Types