Bug 1113515

Summary:	[Docs] [Technical] Technical reference does not state space requirements for snapshot deletion
Product:	Red Hat Enterprise Virtualization Manager	Reporter:	akotov
Component:	Documentation	Assignee:	Andrew Dahms <adahms>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Lucy Bopf <lbopf>
Severity:	unspecified	Docs Contact:
Priority:	high
Version:	3.4.0	CC:	acathrow, jbuchta, juwu, yeylon
Target Milestone:	---
Target Release:	3.5.0
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:	Build Name: 22459, Technical Reference Guide-3.3 Build Date: 29-04-2014 15:50:13 Topic ID: 13706-592084 [Specified]
Last Closed:	2014-08-31 23:27:25 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 akotov 2014-06-26 10:41:51 UTC

Title: Snapshot Deletion

Describe the issue:

Documentation does not clearly state the space requirements, it only says "When the administrator deletes a snapshot, the data from the deleted snapshot and the snapshot created after the deleted snapshot are merged into a single COW volume.", without mentioning the fact that temporary file is essential step during this process. 


Suggestions for improvement:

Customers are interested in more technical background about snapshot deletion process, similar to https://access.redhat.com/site/solutions/527613

Additional information:

Comment 3 Andrew Dahms 2014-08-25 01:43:55 UTC

Documentation Link
------------------------------
http://documentation-devel.engineering.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Virtualization/3.5-Beta/html-single/Technical_Guide/index.html#Snapshot_Deletion

What Changed
------------------------------
The second paragraph of the following topic was restructured to outline the actions performed when deleting a snapshot and clarify that doing so requires free storage space:

Snapshot Deletion [13706-702192]

Updated the revision history: [34616-702193]

NVR
------------------------------
Red_Hat_Enterprise_Virtualization-Technical_Guide-3.5-Beta-en-US-3.5-7

Moving to ON_QA.

Comment 4 Lucy Bopf 2014-08-25 02:03:45 UTC

Peer reviewed.

The second paragraph of the linked topic has been updated to explicitly outline the actions performed when a snapshot is deleted. It is now clear that snapshot deletion requires additional storage space.

VERIFIED.