Bug 1394049

Summary:	[RFE] dm-integrity: A target that stores extra data with each block
Product:	[Community] LVM and device-mapper	Reporter:	Jonathan Earl Brassow <jbrassow>
Component:	device-mapper	Assignee:	Mikuláš Patočka <mpatocka>
Status:	CLOSED CURRENTRELEASE	QA Contact:	cluster-qe <cluster-qe>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	unspecified	CC:	agk, heinzm, jbrassow, msnitzer, prajnoha, zkabelac
Target Milestone:	---	Flags:	rule-engine: lvm-technical-solution?
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:
Clones:	1406501 (view as bug list)		Environment:
Last Closed:	2017-07-28 03:17:28 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Bug Depends On:
Bug Blocks:	1394039, 1406501

Description Jonathan Earl Brassow 2016-11-10 22:00:31 UTC

dm-integrity is a device-mapper target that can emulate the DIF/DIX feature present in some storage devices.  It can store an extra bit of information with each block written and do so atomically.

dm-integrity is a necessary component of 'authenticated data integrity' in encryption applications, as well as other uses.

Comment 1 Jonathan Earl Brassow 2017-07-28 03:17:28 UTC

upstream in kernel 4.12.