Bug 1038236

Summary: add dm-cache support to RHEL 6 - userspace components [Technology Preview]
Product: Red Hat Enterprise Linux 6 Reporter: Steve Almy <salmy>
Component: device-mapper-persistent-dataAssignee: Heinz Mauelshagen <heinzm>
Status: CLOSED ERRATA QA Contact: yanfu,wang <yanwang>
Severity: high Docs Contact:
Priority: high    
Version: 6.6CC: agk, ccui, coughlan, heinzm, jbrassow, jharriga, mnavrati, msnitzer, prajnoha, prockai, rbalakri, salmy, scohen, thornber, yanwang, zkabelac
Target Milestone: rcFlags: heinzm: needinfo-
Target Release: 6.6   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: device-mapper-persistent-data-0.3.2-1.el6 Doc Type: Technology Preview
Doc Text:
dm-era Technology Preview The device-mapper-persistent-data package now provides tools to help use the new dm-era device mapper functionality released as a Technology Preview. The dm-era functionality keeps track of which blocks on a device were written within user-defined periods of time called an era. This functionality allows backup software to track changed blocks or restore the coherency of a cache after reverting changes.
Story Points: ---
Clone Of: 1038227 Environment:
Last Closed: 2014-10-14 04:35:56 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: 1003108, 1038227    
Bug Blocks:    

Description Steve Almy 2013-12-04 16:51:09 UTC
In order to improve performance for both physical and especially virtualization deployments we'd like to backport dm-cache from upstream/rhel-7 into RHEL 6 - ideally for RHEL 6.6

Comment 1 Heinz Mauelshagen 2014-02-19 13:46:27 UTC
dm-cache userspace components (cache_check, cache_dumo, cache_restore, cache_repair) added.

Comment 18 errata-xmlrpc 2014-10-14 04:35:56 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHBA-2014-1409.html