cinder/releasenotes/notes/discard-config-option-711a7fbf20685834.yaml
Patrick East 63e54b80d0 Add config option to enable reporting discard
The way for a client of Cinder (read: Nova) to know whether or not it
can and should use the discard feature for the block device attachment
is to report back discard=True in the connection info. Previously a
driver would need to be updated to provide this functionality, which is
kind of a pain with so many drivers in Cinder.

This change adds a shared boolean config option called
‘report_discard_supported’ which can be set to enable reporting this
functionality to the caller of initialize_connection.

DocImpact
Change-Id: I078e74583621316bcfe138096507e7d22af0d712
Implements: blueprint discard-config-option
2015-12-21 10:08:45 -08:00

4 lines
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YAML

---
features:
- New config option to enable discard (trim/unmap) support for any backend.