Red Hat Bugzilla – Bug 832632
[Feature Request] Copy On Write (COW)
Last modified: 2015-10-22 11:46:38 EDT
Description of problem:
Need a COW for VM cloning.
This can be done, with the support of COW in the underlying filesystems.
If you use BTRFS for your bricks, then when a COW request hits a file, a link can be made at the destination brick for the new copy, then instigate a COW action on the local file.
Then a rebalance can finish the actual copy process to the real destination brick, in the background.
because of the large number of bugs filed against mainline version\ is ambiguous and about to be removed as a choice.
If you believe this is still a bug, please change the status back to NEW and choose the appropriate, applicable version for it.