Bug 1705170

Summary: [Docs] [Cinderlib] The snapshot with memory doesn't work when the VM is with MBS disk and without guest agent
Product: [oVirt] ovirt-engine Reporter: Shir Fishbain <sfishbai>
Component: DocumentationAssignee: Tal Nisan <tnisan>
Status: CLOSED NOTABUG QA Contact: Shir Fishbain <sfishbai>
Severity: high Docs Contact:
Priority: unspecified    
Version: 4.3.3.3CC: adahms, aefrat, bugs, bzlotnik, frolland, royoung, tnisan
Target Milestone: ovirt-4.4.2Flags: pm-rhel: ovirt-4.4+
Target Release: ---   
Hardware: x86_64   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2020-07-21 08:35:12 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: Storage RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1647196, 1687627    
Bug Blocks: 1673035    
Attachments:
Description Flags
Logs none

Description Shir Fishbain 2019-05-01 17:15:27 UTC
Created attachment 1560953 [details]
Logs

Description of problem:
When creating a snapshot on VM that has managed block domain disk and the guest agent isn't installed on VM, it won't be possible to create a snapshot with memory.

On every VM that has disk other than managed block domain and doesn't have guest agent, there's an option to create a snapshot with memory.
The VM doesn't have to be with a guest agent in order that the snapshot with memory will succeed. 

Version-Release number of selected component (if applicable):
ovirt-engine-4.3.3.3-0.1.el7.noarch
Cinderlib version: 0.3.9
vdsm-4.30.13-1.el7ev.x86_64

How reproducible:
100%

Steps to Reproduce:
1. Create a VM with Manged Block Domain disk without guest agent and run the VM
2. Create a snapshot with memory

Actual results:
There isn't an option to create a snapshot with memory

Expected results:
There's an option to create a snapshot with memory on VM without a guest agent and with MBD disk.

Additional info:
Logs attached

Comment 1 Tal Nisan 2019-05-13 14:23:26 UTC
Fred, can you please document this behavior?

Comment 3 Sandro Bonazzola 2020-05-18 14:46:44 UTC
Moved to 4.4.1 not being marked as blocker for 4.4.0 and we are preparing to GA.

Comment 4 RHEL Program Management 2020-05-18 17:12:16 UTC
The documentation text flag should only be set after 'doc text' field is provided. Please provide the documentation text and set the flag to '?' again.

Comment 5 Avihai 2020-07-02 12:51:39 UTC
Hi Tal,
Will this be done by 4.4.1(which dev freeze is planned in 3 Jul)?

If not please retarget to 4.4.2.

Comment 6 Tal Nisan 2020-07-06 09:22:26 UTC
Benny, can you please document what is needed here?

Comment 7 Benny Zlotnik 2020-07-21 08:35:12 UTC
This is no longer needed since the LiveSnapshotAllowInconsistent config was introduced, closing