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Bug 1036957

Summary:	Disk size of libiscsi image is unavailable checked by "qemu-img info"
Product:	Red Hat Enterprise Linux 7	Reporter:	huiqingding <huding>
Component:	qemu-kvm	Assignee:	Paolo Bonzini <pbonzini>
Status:	CLOSED NOTABUG	QA Contact:	Virtualization Bugs <virt-bugs>
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	7.0	CC:	acathrow, hhuang, huding, juzhang, pbonzini, virt-maint
Target Milestone:	rc
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2013-12-03 19:33:01 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 huiqingding 2013-12-03 00:03:48 UTC

Description of problem:
Use "qemu-img info" to check libiscsi image, disk size of the image is unavailable.

Version-Release number of selected component (if applicable):
qemu-kvm-rhev-1.5.3-20.el7.x86_64
kernel-3.10.0-54.el7.x86_64

How reproducible:
100%

Steps to Reproduce:
1.Create a image which backend is libiscsi
# qemu-img create -f qcow2 iscsi://10.66.6.82:3260/iqn.2013-11.com.example:storage.disk1.juli.xyz/1 30G

2. Check the info of the image
# qemu-img info iscsi://10.66.6.82:3260/iqn.2013-11.com.example:storage.disk1.juli.xyz/1


Actual results:
disk size: unavailable

Expected results:
disk size: 136K

Additional info:
Install a guest in this image and use "qemu-img info" to check it, disk size is also "unavailable".

Comment 2 Paolo Bonzini 2013-12-03 19:33:01 UTC

This is okay.  In fact the output for block devices is incorrect and should show "unavailable", but we probably cannot change it without breaking backwards-compatibility.

$ sudo qemu-img info /dev/sda
image: /dev/sda
file format: raw
virtual size: 298G (320072933376 bytes)
disk size: 0