Bug 739469

Summary:	[vrit-manager]can't save default cache mode to new storage
Product:	Red Hat Enterprise Linux 6	Reporter:	zhe peng <zpeng>
Component:	virt-manager	Assignee:	Cole Robinson <crobinso>
Status:	CLOSED NOTABUG	QA Contact:	Virtualization Bugs <virt-bugs>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	6.2	CC:	mzhan, rwu
Target Milestone:	rc
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-09-22 15:16:22 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:

Description zhe peng 2011-09-19 07:43:57 UTC

Description of problem:
create new storage with cache mode default not saved to guest.

Version-Release number of selected component (if applicable):
virt-manager-0.9.0-6.el6
libvirt-0.9.4-11.el6
python-virtinst-0.600.0-3.el6
qemu-kvm-0.12.1.2-2.190.el6

How reproducible:
always

Steps to Reproduce:
1.Shut down a vm then open Virtual Machine Details window.
2.Click Add Hardware button
3.select Storage in left panel.
4.check "Select managed or other existing"
5.Browser an existing file 
6.select Floppy disk as Device type.
7.Change Cache mode to default.
8.Click "Finish" button.
9.check Floppy 1  performance options 
  
Actual results:
Cache mode change to none automatically.

Expected results:
Cache mode should same with step 7 setting.

Additional info:
this issue both occur on add IDE Disk,Virtio Disk,IDE CDROM storage

Comment 2 Cole Robinson 2011-09-22 15:16:22 UTC

Thanks for the report, but for RHEL, 'none' is the default, so this is correct behavior. We have to hardcode this default in virtinst since qemu devs did not want to set it at the emulator level.

Closing as NOTABUG.