puppet-nova/releasenotes/notes/add_preallocate_images_option-24711e88218b09ca.yaml
Michael Polenchuk abe5075878 Add image preallocation mode option
Image preallocation allows storage to be fully allocated at
instance start. This should significantly improve performance
on writes to new blocks and may even improve I/O performance
to prewritten blocks due to reduced fragmentation.

Change-Id: I1be99c9af8f32b1a7f8408ddeb695fd05a603ace
2016-12-20 19:27:02 +00:00

6 lines
239 B
YAML

---
features:
- Added preallocate_images option which allows storage for instance images
to be allocated up front when the instance is initially provisioned.
This should significantly improve performance on writes to new blocks.