openstack/cinder — Week of 2026-09-05

Driver work. The bulk of the week's churn landed in vendor backends, led by Pure Storage's ~1,000-line implementation of Tiramisu group replication actions, which brings enable/disable/failover semantics to replication groups. Pure also gained a fix to lock attached hosts on force detach in the Everpure path. NetApp ONTAP saw three separate fixes: honoring the ONTAP 9.15.1+ default for LUN space-allocation, correctly handling retype/migrate to non-NetApp backends when the target host is none, and parsing adaptive QoS values with a /GB suffix. Hitachi bumped its driver version for the Hibiscus release, and HPE Alletra MP refreshed its support matrix.

Stability. Beyond the driver-local fixes, a crash in NetApp's clone_image() when ZAPI fallback is disabled was addressed, missing volume-delete notifications during group delete were restored, and domain IDs no longer get lost across RPC calls.

Policy and maintenance. Scope-enforcement disabling was removed from the policy layer, aligning Cinder with the secure-RBAC direction. Housekeeping rounded things out with a mypy bump to 2.1.x and the removal of a lingering deprecated pyparsing interface.