Bug 1394427

Summary: LVM RAID: upconverting linear to RAID1 ignores '-R|--regionsize' argument
Product: Red Hat Enterprise Linux 7 Reporter: Jonathan Earl Brassow <jbrassow>
Component: lvm2Assignee: Heinz Mauelshagen <heinzm>
lvm2 sub component: Mirroring and RAID QA Contact: cluster-qe <cluster-qe>
Status: CLOSED ERRATA Docs Contact:
Severity: unspecified    
Priority: unspecified CC: agk, cmarthal, heinzm, jbrassow, msnitzer, prajnoha, prockai, zkabelac
Version: 7.2   
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: lvm2-2.02.169-1.el7 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2017-08-01 21:49:49 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:

Description Jonathan Earl Brassow 2016-11-11 23:22:45 UTC 
# lvcreate -L 500M -n lv vg
  Logical volume "lv" created.
# lvconvert -m 1 -R 4M vg/lv
  Logical volume vg/lv successfully converted.
# lvs -o name,segtype,regionsize vg
  LV   Type  Region
  lv   raid1 512.00k
Comment 1 Heinz Mauelshagen 2016-11-16 17:13:17 UTC 
Prepared for review/integration as lvconvert functionality on lvm2 upstream
branch dev-lvmguy-raid-takeover-reshape-resize_work
Comment 3 Heinz Mauelshagen 2017-02-28 17:22:28 UTC 
Upstream commit 2574d3257ad4
Comment 5 Corey Marthaler 2017-05-10 23:11:15 UTC 
Fix verified in the latest rpms.

3.10.0-657.el7.x86_64
lvm2-2.02.171-1.el7    BUILT: Wed May  3 07:05:13 CDT 2017
lvm2-libs-2.02.171-1.el7    BUILT: Wed May  3 07:05:13 CDT 2017
lvm2-cluster-2.02.171-1.el7    BUILT: Wed May  3 07:05:13 CDT 2017
device-mapper-1.02.140-1.el7    BUILT: Wed May  3 07:05:13 CDT 2017
device-mapper-libs-1.02.140-1.el7    BUILT: Wed May  3 07:05:13 CDT 2017
device-mapper-event-1.02.140-1.el7    BUILT: Wed May  3 07:05:13 CDT 2017
device-mapper-event-libs-1.02.140-1.el7    BUILT: Wed May  3 07:05:13 CDT 2017
device-mapper-persistent-data-0.7.0-0.1.rc6.el7    BUILT: Mon Mar 27 10:15:46 CDT 2017


[root@mckinley-02 ~]# lvcreate -aye -L 500M -n lv FOO
  Logical volume "lv" created.
[root@mckinley-02 ~]# lvconvert --type raid1 -m 1 -R 4M FOO/lv
Are you sure you want to convert linear LV FOO/lv to raid1 with 2 images enhancing resilience? [y/n]: y
  Logical volume FOO/lv successfully converted.
[root@mckinley-02 ~]# lvs -o name,segtype,regionsize FOO
  LV   Type  Region
  lv   raid1  4.00m
Comment 6 errata-xmlrpc 2017-08-01 21:49:49 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.

https://access.redhat.com/errata/RHBA-2017:2222