uberblock on-disk padding to reserve space for smoothly merging zpool checkpoint & MMP in ZFS
The zpool checkpoint feature in DxOS added a new field in the uberblock.
The Multi-Modifier Protection Pull Request from ZoL adds two new fields in the uberblock (Reference: https://github.com/zfsonlinux/zfs/pull/6279).
As these two changes come from two different sources and once upstreamed and deployed will introduce an incompatibility with each other we want
to upstream a change that will reserve the padding for both of them so integration goes smoothly and everyone gets both features.
Updated by Electric Monk about 3 years ago
- % Done changed from 0 to 100
- Status changed from New to Closed
commit 79c2b812ee2010ebf20fdd92dc5f06b59000a94c Author: Serapheim Dimitropoulos <firstname.lastname@example.org> Date: 2017-07-22T00:27:52.000Z 8491 uberblock on-disk padding to reserve space for smoothly merging zpool checkpoint & MMP in ZFS Reviewed by: Matthew Ahrens <email@example.com> Reviewed by: Brian Behlendorf <firstname.lastname@example.org> Reviewed by: Olaf Faaland <email@example.com> Approved by: Gordon Ross <firstname.lastname@example.org>