PendingReleaseNotes: note about ec overwrites

Signed-off-by: Josh Durgin <jdurgin@redhat.com>

diff --git a/PendingReleaseNotes b/PendingReleaseNotes
index e2b043034d2172d16dbda11425ae69dcd9ac139b..f010976e7ff1e24f3c5d31d465a0ae0ed23aad0f 100644 (file)
--- a/PendingReleaseNotes
+++ b/PendingReleaseNotes
@@ -111,3 +111,8 @@
   ability to be overridden by the erasure code profile setting
   "stripe_unit". For more details see "Erasure Code Profiles" in the
   documentation.
+
+* rbd and cephfs can use erasure coding with bluestore. This may be
+  enabled by setting 'allow_ec_overwrites' to 'true' for a pool. Since
+  this relies on bluestore's checksumming to do deep scrubbing,
+  enabling this on a pool stored on filestore is not allowed.