[PATCH 2/2] NEWS: mention zero detection for non-shared-storage migration
Signed-off-by: Peter Krempa <pkrempa(a)redhat.com>
---
NEWS.rst | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/NEWS.rst b/NEWS.rst
index 7f4f33c8f8..7a4a0e1d1f 100644
--- a/NEWS.rst
+++ b/NEWS.rst
@@ -17,6 +17,17 @@ v10.9.0 (unreleased)
* **New features**
+ * qemu: zero block detection for non-shared-storage migration
+
+ Users can now request that all-zero blocks are not transferred when migrating
+ non-shared disk data without actually enabling zero detection on the disk
+ itself. This allows sparsifying images during migration where the source
+ has no access to the allocation state of blocks at the cost of CPU overhead.
+
+ This feature is avaliable via the ``--migrate-disks-detect-zeroes`` option
+ for ``virsh migrate`` or ``VIR_MIGRATE_PARAM_MIGRATE_DISKS_DETECT_ZEROES_ZEROES``
+ migration parameter. See the documentation for caveats.
+
* **Improvements**
* qemu: internal snapshot improvements
--
2.47.0