Bug 1132086

Summary: Cannot export VM. Disk configuration (COW Preallocated) is incompatible with the storage domain type.
Product: [Retired] oVirt Reporter: Tal Nisan <tnisan>
Component: ovirt-engine-coreAssignee: Tal Nisan <tnisan>
Status: CLOSED CURRENTRELEASE QA Contact: Aharon Canan <acanan>
Severity: urgent Docs Contact:
Priority: unspecified    
Version: 3.4CC: acanan, amureini, anelson, ecohen, gklein, iheim, lpeer, pmukhedk, rbalakri, Rhev-m-bugs, scohen, tnisan, yeylon
Target Milestone: ---   
Target Release: 3.4.4   
Hardware: x86_64   
OS: Linux   
Whiteboard: storage
Fixed In Version: ovirt-3.4.4_rc Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: 1132084 Environment:
Last Closed: 2014-09-24 08:08:48 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: Storage RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1129634, 1132084    
Bug Blocks: 1154674    

Description Tal Nisan 2014-08-20 15:56:32 UTC 
Description of problem:

Unable to export a virtual machine (with prealloacted disk ) from iscsi storage domain to NFS Export. When  "export" action is initiated it fails with below error event :

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Cannot export VM. Disk configuration (COW Preallocated) is incompatible with the storage domain type.
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Version-Release number of selected component (if applicable):
oVirt 3.4.1

How reproducible:
Always

Steps to Reproduce:
1. Create a VM with a thinly provision disk on an NFS domain
2. Export the VM to an export domain
3. Import the VM, in the disk allocation choose a block domain 
Disk will be imported as Cow-Preallocated and export will not be possible for it.
Comment 1 Sandro Bonazzola 2014-09-24 08:08:48 UTC 
oVirt 3.4.4 has been released.