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Bug 924567 - The virsh vol-resize command didn't work for rhel7
Summary: The virsh vol-resize command didn't work for rhel7
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: libvirt
Version: 7.0
Hardware: x86_64
OS: Linux
high
high
Target Milestone: rc
: ---
Assignee: Jiri Denemark
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2013-03-22 05:27 UTC by zhenfeng wang
Modified: 2014-06-18 00:45 UTC (History)
6 users (show)

Fixed In Version: libvirt-1.0.6-1.el7
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2014-06-13 10:41:35 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description zhenfeng wang 2013-03-22 05:27:37 UTC 
Description of problem:
The virsh vol-resize command didn't work for rhel7
Version-Release number of selected component (if applicable):
qemu-kvm-1.3.0-6.el7.x86_64
kernel-3.7.0-0.36.el7.x86_64
libvirt-1.0.3-1.el7.x86_64

How reproducible:
100%
Steps
1. Prepare vol xml file
# cat vol-test.xml
<volume>
  <name>vol-test</name>
  <key>/var/lib/libvirt/images/vol-test</key>
  <source>
  </source>
  <capacity>10737418240</capacity>
  <allocation>3179753472</allocation>
  <target>
    <path>/var/lib/libvirt/images/vol-test</path>
    <format type='raw'/>
    <permissions>
      <mode>0644</mode>
      <owner>36</owner>
      <group>36</group>
      <label>system_u:object_r:nfs_t</label>
    </permissions>
  </target>
</volume>

2. Create a vol with the vol-test.xml
# virsh vol-create default vol-test.xml

3. Check the img info
# qemu-img info /var/lib/libvirt/images/vol-test
image: /var/lib/libvirt/images/vol-test
file format: raw
virtual size: 10G (10737418240 bytes)
disk size: 3.0G

# ll /var/lib/libvirt/images/vol-test
-rw-r--r--. 1 36 kvm 10737418240 Mar 15 17:07 /var/lib/libvirt/images/vol-test

4. Resize the exsited img
# virsh vol-resize /var/lib/libvirt/images/vol-test 20G

# echo $?
1

5. Recheck the img info ,the img was not resized
# qemu-img info /var/lib/libvirt/images/vol-test
image: /var/lib/libvirt/images/vol-test
file format: raw
virtual size: 10G (10737418240 bytes)
disk size: 3.0G

6. it works well on rhel6

Actual results:
can't resize the vol and the command was invalid

Expected results:
should resize the vol successfully
Comment 2 zhenfeng wang 2013-03-22 05:29:28 UTC 
This bug just be for enlarge the vol size. For the shrink operation, still not support on both RHEL6/7 yet.
FYI:
https://bugzilla.redhat.com/show_bug.cgi?id=804516#c13
Comment 3 Osier Yang 2013-05-24 03:35:47 UTC 
Regression introduced by commit 1daa4ba33acf
Comment 4 Osier Yang 2013-05-24 08:56:58 UTC 
commit 2a3a725c33aba2046443d33eb473eb54517f61c8
Author: Osier Yang <jyang>
Date:   Fri May 24 11:59:14 2013 +0800

    virsh: Fix regression of vol-resize
    
    Introduced by commit 1daa4ba33acf. vshCommandOptStringReq returns
    0 on *success* or the option is not required && not present, both
    are right result. Error out when returning 0 is not correct.
    the caller, it doesn't have to check wether it
Comment 6 Jincheng Miao 2013-06-05 14:33:01 UTC 
this bug fix is verified.

# rpm -q libvirt
libvirt-1.0.6-1.el7.x86_64

# virsh vol-create default vol-test.xml 
Vol vol-test created from vol-test.xml

# qemu-img info /var/lib/libvirt/images/vol-test 
image: /var/lib/libvirt/images/vol-test
file format: raw
virtual size: 10G (10737418240 bytes)
disk size: 3.0G

# ll /var/lib/libvirt/images/vol-test 
-rw-r--r--. 1 36 kvm 10737418240 Jun  5 22:24 /var/lib/libvirt/images/vol-test

# virsh vol-resize /var/lib/libvirt/images/vol-test 20G
Size of volume 'vol-test' successfully changed to 20G

# echo $?
0

# qemu-img info /var/lib/libvirt/images/vol-test 
image: /var/lib/libvirt/images/vol-test
file format: raw
virtual size: 20G (21474836480 bytes)
disk size: 3.0G
Comment 8 Ludek Smid 2014-06-13 10:41:35 UTC 
This request was resolved in Red Hat Enterprise Linux 7.0.

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