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Bug 1098085 - RFE: Supporting creating vmdk/vdi/vpc format disk with protocols (glusterfs)
Summary: RFE: Supporting creating vmdk/vdi/vpc format disk with protocols (glusterfs)
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: qemu-kvm
Version: 6.5
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: rc
: ---
Assignee: Jeff Cody
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On:
Blocks: 1098086 1136381
TreeView+ depends on / blocked
 
Reported: 2014-05-15 09:30 UTC by Sibiao Luo
Modified: 2014-09-02 13:10 UTC (History)
12 users (show)

Fixed In Version:
Doc Type: Enhancement
Doc Text:
Clone Of:
: 1098086 (view as bug list)
Environment:
Last Closed: 2014-05-27 22:13:35 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description Sibiao Luo 2014-05-15 09:30:51 UTC 
Description of problem:
Just as discuss with kwolf in IRC, the problem is that the bdrv_create() implementation for these block drivers directly use POSIX file functions instead of using the qemu block layer, so they work only on local files and fail with glusterfs storage.
BTW, raw/qcow2/qed/vhdx format has no such issue.

Version-Release number of selected component (if applicable):
host info:
# uname -r && rpm -q qemu-kvm-rhev
2.6.32-448.el6.x86_64
qemu-kvm-rhev-0.12.1.2-2.424.el6.x86_64

How reproducible:
100%

Steps to Reproduce:
# qemu-img create -f vmdk gluster://10.66.9.107/volume_name/test 10G
Formatting 'gluster://10.66.9.107/volume_name/test', fmt=vmdk size=10737418240 compat6=off zeroed_grain=off 
gluster://10.66.9.107/volume_name/test: error while creating vmdk: Invalid argument

# qemu-img create -f vpc gluster://10.66.9.107/volume_name/test 10G
Formatting 'gluster://10.66.9.107/volume_name/test', fmt=vpc size=10737418240 
gluster://10.66.9.107/volume_name/test: error while creating vpc: Input/output error

# qemu-img create -f vdi gluster://10.66.9.107/volume_name/test 10G
Formatting 'gluster://10.66.9.107/volume_name/test', fmt=vdi size=10737418240 static=off 
gluster://10.66.9.107/volume_name/test: error while creating vdi: No such file or directory

Actual results:


Expected results:
creating vmdk/vpc/vdi image in glusterfs should work.

Additional info:
Comment 1 Ademar Reis 2014-05-27 22:13:35 UTC 
Worth investigating the effort needed to implement it upstream and in RHEL7 (bug 1098086), but closing as WONTFIX in RHEL6, as the usage scenario is very unlikely to happen in the field.
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