Bug 840327

Summary: [webadmin] Default disk format - 'Thin Provision' for NFS / 'Preallocated' for Block Devices
Product: Red Hat Enterprise Virtualization Manager Reporter: Daniel Erez <derez>
Component: ovirt-engine-webadmin-portalAssignee: Daniel Erez <derez>
Status: CLOSED CURRENTRELEASE QA Contact: Haim <hateya>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 3.1.0CC: abaron, acathrow, amureini, dron, dyasny, ecohen, hateya, iheim, Rhev-m-bugs, sgordon, vvyazmin, yeylon, ykaul
Target Milestone: ---   
Target Release: 3.1.0   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: storage
Fixed In Version: SI13 Doc Type: Bug Fix
Doc Text:
Previously, by default, thin provisioned storage would be used for the first disk added to a desktop virtual machine. Pre-allocated storage was used, by default, for all subsequent disks and all disk attached to server virtual machines. The defaults have been changed. Thin provisioned disks are now the default on NFS storage, while pre-allocated disks are the default on block devices.
Story Points: ---
Clone Of:
: 847113 (view as bug list) Environment:
Last Closed: 2012-12-04 20:05:53 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:    
Bug Blocks: 847113    

Description Daniel Erez 2012-07-15 22:25:04 UTC
Description of problem:
When creating a new virtual disk, the default disk format should be:
'Thin Provision' for NFS and 'Preallocated' for Block Devices.

Steps to Reproduce:
Open 'Add Virtual Disk' dialog.
  
Actual results:
Desktop VM, Default format: 'Thin' on the first disk; otherwise, 'Preallocated'.
Server VM, Default format: 'Preallocated'.

Expected results:
Default format: 'Thin Provision' for NFS and 'Preallocated' for Block Devices.

Comment 1 Daniel Erez 2012-07-22 13:29:26 UTC
upstream commit a0e96a2065cc06583d1ddb20d05186c302599c6a

Comment 2 Stephen Gordon 2012-08-09 14:15:05 UTC
    Technical note added. If any revisions are required, please edit the "Technical Notes" field
    accordingly. All revisions will be proofread by the Engineering Content Services team.
    
    New Contents:
Previously, by default, thin provisioned storage would be used for the first disk added to a desktop virtual machine. Pre-allocated storage was used, by default, for all subsequent disks and all disk attached to server virtual machines. The defaults have been changed. Thin provisioned disks are now the default on NFS storage, while pre-allocated disks are the default on block devices.

Comment 3 vvyazmin@redhat.com 2012-08-09 15:26:54 UTC
Verified on RHEVM 3.1 - SI13.2

RHEVM: rhevm-3.1.0-11.el6ev.noarch
VDSM: vdsm-4.9.6-27.0.el6_3.x86_64
LIBVIRT: libvirt-0.9.10-21.el6.x86_64
QEMU & KVM: qemu-kvm-rhev-0.12.1.2-2.298.el6_3.x86_64
SANLOCK: sanlock-2.3-3.el6_3.x86_64

Comment 4 Stephen Gordon 2012-08-09 18:16:57 UTC
Removing the release note flag and cloning the bug to ensure we document it formally in the Admin Guide instead.