Bug 1403951

Summary: virt-manager should support and default to external snapshots
Product: Red Hat Enterprise Linux 7 Reporter: Ademar Reis <areis>
Component: virt-managerAssignee: Pavel Hrdina <phrdina>
Status: CLOSED CANTFIX QA Contact: Virtualization Bugs <virt-bugs>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 7.0CC: crobinso, darkbasic, drjones, eblake, juzhou, lersek, libvirt-maint, mike, pkrempa, shipatil, tzheng, virt-bugs, xiaodwan, xuzhang
Target Milestone: rcKeywords: FutureFeature
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
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Story Points: ---
Clone Of: 1402581
: 1519003 (view as bug list) Environment:
Last Closed: 2018-10-22 12:46:26 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:
Bug Depends On: 1519002, 1402581    
Bug Blocks: 1214187, 1431852, 1519003    

Description Ademar Reis 2016-12-12 17:09:27 UTC 
We don't encourage the usage of qcow2 internal snaphots but virsh and virt-manager both default to them when creating snapshots.

BZ 1402581, reproduced below, is the virsh version of this issue.

+++ This bug was initially created as a clone of Bug #1402581 +++

Description of problem:
For historical reasons, 'virsh snapshot-create' defaults to internal snapshots, because external snapshots were not implemented for several years.  However, these days the qemu team recommends the use of external snapshots, and upper levels like RHEV prefer external snapshots.  It would be nice if there were a way to set up configuration defaults for virsh, so that typing 'virsh snapshot-create' could consult the configuration file on whether to default to internal or external, instead of forcing the user to remember to pass extra flags to get an external snapshot.

Version-Release number of selected component (if applicable):
libvirt-2.5.0-1.el7
Comment 4 Cole Robinson 2017-03-02 20:11:22 UTC 
*** Bug 1342543 has been marked as a duplicate of this bug. ***
Comment 6 Cole Robinson 2018-10-22 12:46:26 UTC 
Closing this as CANTFIX for rhel7. Besides not being implemented at the lower levels yet, even if virt-manager.git got support tomorrow it would very likely require a rebase for RHEL7, which is impossible as upstream virt-manager has moved to python3. Please reopen if I've missed something
Comment 7 Pavel Hrdina 2019-03-08 13:40:33 UTC 
*** Bug 1686842 has been marked as a duplicate of this bug. ***