From 965c3004344c44f68a79b80b292d16989d437ef3 Mon Sep 17 00:00:00 2001 From: Jason Dillaman Date: Wed, 18 Mar 2020 12:16:28 -0400 Subject: [PATCH] doc/releases/octopus: add additional RBD improvements Signed-off-by: Jason Dillaman --- doc/releases/octopus.rst | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/doc/releases/octopus.rst b/doc/releases/octopus.rst index c9968502d2ec4..04bf4cb28bcd1 100644 --- a/doc/releases/octopus.rst +++ b/doc/releases/octopus.rst @@ -113,13 +113,21 @@ RADOS **RBD** block storage ~~~~~~~~~~~~~~~~~~~~~ +* Mirroring now supports a new snapshot-based mode that no longer requires + the journaling feature and its related impacts in exchange for the loss + of point-in-time consistency (it remains crash consistent). * Clone operations now preserve the sparseness of the underlying RBD image. * The trash feature has been improved to (optionally) automatically move old parent images to the trash when their children are all deleted or flattened. +* The trash can be configured to automatically purge on a defined schedule. +* Images can be online re-sparsified to reduce the usage of zeroed extents. * The ``rbd-nbd`` tool has been improved to use more modern kernel interfaces. * Caching has been improved to be more efficient and performant. - +* ``rbd-mirror`` automatically adjusts its per-image memory usage based + upon its memory target. +* A new persistent read-only caching daemon is available to offload reads from + shared parent images. **RGW** object storage ~~~~~~~~~~~~~~~~~~~~~~ -- 2.39.5