Implement thin provisioning LVM support
As of LVM2 version 2.02.89 the ability to do thin provisioning
was made available in LVM, this provides some cool new features
but also addresses some problems with things like terribel LVM
LVM snapshot performance.
Currently the version of LVM in Ubuntu 12.04 does NOT support LVM thin,
however an experimental PPA from brightbox which is a backport from
Quantal has been proposed to Cannonical to be pulled in. For some
users the experimental PPA is a better option than dealing with some of
the current issues in the standard LVM2 version of Precise (including
the dd hangs on secure delete).
For Precise:
Prereqs:
LVM version: 2.02.95(2) (2012-03-06)
Library version: 1.02.74 (2012-03-06)
Driver version: 4.22.0
To get these on precise we need an experimental PPA from brightbox:
sudo add-apt-repository ppa:brightbox/
sudo apt-get install lvm2
Uses pool_size config option to determine how large of a thin pool to create. Defaults to '0' which will use the entire VG.
Change is introduced as a new driver, basicly just inherits from the existing LVM driver and would be used by adding the following driver selection to your cinder.conf file:
volume_
Blueprint information
- Status:
- Complete
- Approver:
- John Griffith
- Priority:
- Low
- Drafter:
- John Griffith
- Direction:
- Approved
- Assignee:
- John Griffith
- Definition:
- Approved
- Series goal:
- Accepted for grizzly
- Implementation:
- Implemented
- Milestone target:
- 2013.1
- Started by
- John Griffith
- Completed by
- John Griffith
Related branches
Related bugs
Sprints
Whiteboard
Gerrit topic: https:/
Addressed by: https:/
Implement LVM thin provisioning support.