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Bug 841445

Summary: lvconvert should convert to the raid1 segtype by default if mirror_segtype_default set to raid1
Product: Red Hat Enterprise Linux 7 Reporter: Xiaowei Li <xiaoli>
Component: lvm2Assignee: LVM and device-mapper development team <lvm-team>
lvm2 sub component: Default / Unclassified QA Contact: cluster-qe <cluster-qe>
Status: CLOSED CURRENTRELEASE Docs Contact:
Severity: medium    
Priority: unspecified CC: agk, cmarthal, heinzm, jbrassow, msnitzer, mspqa-list, prajnoha, prockai, qcai, thornber, vincent, zkabelac
Version: 7.0   
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
: 976104 (view as bug list) Environment:
Last Closed: 2014-06-13 13:10:06 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:
Embargoed:
Bug Depends On:    
Bug Blocks: 976104    
Attachments:
Description Flags
Upstream commit that resolves this issue none

Description Xiaowei Li 2012-07-19 03:03:03 UTC 
Description of problem:


Version-Release number of selected component (if applicable):
lvm2-2.02.95-6.el7.x86_64


How reproducible:


Steps to Reproduce:
1. set mirror_segtype_default to raid1
grep mirror_segtype_default /etc/lvm/lvm.conf 
    # 'mirror_segtype_default' defines which segtype will be used when the
    mirror_segtype_default = "raid1"
2. lvconvert /dev/vg/lv01 -m1
3. lvs 
  
Actual results:
# lvs -a
  LV                   VG   Attr     LSize  Pool Origin Data%  Move Log            Copy%  Convert
  lv01                 vg   mwi-a-m- 40.00m                         lv01_mlog      100.00    


Expected results:
should convert the lv01 to raid1 segtype.


Additional info:
Comment 2 Jonathan Earl Brassow 2013-06-19 22:59:36 UTC 
Created attachment 763162 [details]
Upstream commit that resolves this issue

commit a6d13308ec0baca9a5bd48f80d02e5c71a54287f
Author: Jonathan Brassow <jbrassow>
Date:   Wed Jun 19 17:50:10 2013 -0500

    RAID/MIRROR: Honor mirror_segtype_default when upconverting linear LVs
    
    If the user would upconvert a linear LV to a mirror without specifying
    the segment type ("--type mirror" vs "--type raid1"), the "mirror"
    segment type would be chosen without consulting the 'default_mirror_segtype'
    setting in lvm.conf.  This is now used as the basis for determining
    which should be used if left unspecified.
Comment 5 Corey Marthaler 2014-01-27 17:46:55 UTC 
Fix verified in the latest rpms.

lvm2-2.02.105-1.el7    BUILT: Wed Jan 22 07:34:15 CST 2014
lvm2-libs-2.02.105-1.el7    BUILT: Wed Jan 22 07:34:15 CST 2014
lvm2-cluster-2.02.105-1.el7    BUILT: Wed Jan 22 07:34:15 CST 2014
device-mapper-1.02.84-1.el7    BUILT: Wed Jan 22 07:34:15 CST 2014
device-mapper-libs-1.02.84-1.el7    BUILT: Wed Jan 22 07:34:15 CST 2014
device-mapper-event-1.02.84-1.el7    BUILT: Wed Jan 22 07:34:15 CST 2014
device-mapper-event-libs-1.02.84-1.el7    BUILT: Wed Jan 22 07:34:15 CST 2014
device-mapper-persistent-data-0.2.8-3.el7    BUILT: Fri Dec 27 13:40:56 CST 2013
cmirror-2.02.105-1.el7    BUILT: Wed Jan 22 07:34:15 CST 2014


## RAID1

   # Specify the '--type <mirror|raid1>' option to override this default
   # setting.
   mirror_segtype_default = "raid1"

[root@host-050 ~]# lvcreate -L 100M -n convert test
  Logical volume "convert" created
[root@host-050 ~]# lvs -a -o +devices
  LV      VG    Attr       LSize    Devices       
  convert test  -wi-a----- 100.00m  /dev/sda1(0)  
[root@host-050 ~]# lvconvert -m 1 test/convert
[root@host-050 ~]# lvs -a -o +devices
  LV                 VG    Attr       LSize   Log Cpy%Sync Devices
  convert            test  rwi-a-r--- 100.00m        12.00 convert_rimage_0(0),convert_rimage_1(0)
  [convert_rimage_0] test  Iwi-aor--- 100.00m              /dev/sda1(0)
  [convert_rimage_1] test  Iwi-aor--- 100.00m              /dev/sdb1(1)
  [convert_rmeta_0]  test  ewi-aor---   4.00m              /dev/sda1(25)
  [convert_rmeta_1]  test  ewi-aor---   4.00m              /dev/sdb1(0)


## MIRROR

   # Specify the '--type <mirror|raid1>' option to override this default
   # setting.
   mirror_segtype_default = "mirror"

[root@host-050 ~]# lvcreate -L 100M -n convert2 test
  Logical volume "convert2" created
[root@host-050 ~]# lvs -a -o +devices
  LV        VG    Attr       LSize    Devices
  convert2  test  -wi-a----- 100.00m  /dev/sda1(26)
[root@host-050 ~]# lvconvert -m 1 test/convert2
  test/convert2: Converted: 4.0%
  test/convert2: Converted: 100.0%
[root@host-050 ~]# lvs -a -o +devices
  LV                  VG    Attr       LSize   Log           Cpy%Sync Devices
  convert2            test  mwi-a-m--- 100.00m convert2_mlog   100.00 convert2_mimage_0(0),convert2_mimage_1(0)
  [convert2_mimage_0] test  iwi-aom--- 100.00m                        /dev/sda1(26)
  [convert2_mimage_1] test  iwi-aom--- 100.00m                        /dev/sdb1(26)
  [convert2_mlog]     test  lwi-aom---   4.00m                        /dev/sdh1(0)
Comment 6 Ludek Smid 2014-06-13 13:10:06 UTC 
This request was resolved in Red Hat Enterprise Linux 7.0.

Contact your manager or support representative in case you have further questions about the request.