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Bug 1579438 - raid1 tracked split off raid|mirror images should not be allowed to be converted
Summary: raid1 tracked split off raid|mirror images should not be allowed to be converted
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: lvm2
Version: 7.5
Hardware: x86_64
OS: Linux
unspecified
low
Target Milestone: rc
: ---
Assignee: Heinz Mauelshagen
QA Contact: cluster-qe@redhat.com
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2018-05-17 16:08 UTC by Corey Marthaler
Modified: 2021-09-03 12:36 UTC (History)
7 users (show)

Fixed In Version: lvm2-2.02.180-2.el7
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2018-10-30 11:02:26 UTC
Target Upstream Version:
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2018:3193 0 None None None 2018-10-30 11:03:20 UTC

Description Corey Marthaler 2018-05-17 16:08:57 UTC 
Description of problem:
This is similar to bug 1579072, but here I learned that the tracked split off images themselves can also be converted, and as a result are no longer eligible for being merged back.


# lvconvert --yes --splitmirrors 1 --trackchanges split_image/split_tracking

[root@host-073 ~]# lvs -a -o +devices
  LV                        VG            Attr       LSize   Log Cpy%Sync Devices
  split_tracking            split_image   rwi-a-r--- 500.00m     100.00   split_tracking_rimage_0(0),split_tracking_rimage_1(0),split_tracking_rimage_2(0)
  [split_tracking_rimage_0] split_image   iwi-aor--- 500.00m              /dev/sdb3(1)
  [split_tracking_rimage_1] split_image   iwi-aor--- 500.00m              /dev/sdb2(1)
  split_tracking_rimage_2   split_image   Iri-a-r--- 500.00m              /dev/sdb1(1)
  [split_tracking_rmeta_0]  split_image   ewi-aor---   4.00m              /dev/sdb3(0)
  [split_tracking_rmeta_1]  split_image   ewi-aor---   4.00m              /dev/sdb2(0)
  [split_tracking_rmeta_2]  split_image   ewi-a-r---   4.00m              /dev/sdb1(0)

# An attempt to convert the tracked split image should probably fail
[root@host-073 ~]# lvconvert --type mirror -m 2 split_image/split_tracking_rimage_2
  Logical volume split_image/split_tracking_rimage_2 being converted.
  split_image/split_tracking_rimage_2: Converted: 0.00%
  split_image/split_tracking_rimage_2: Converted: 50.40%
  split_image/split_tracking_rimage_2: Converted: 100.00%

[root@host-073 ~]# lvs -a -o +devices
  LV                                 VG            Attr       LSize   Log                            Cpy%Sync Devices
  split_tracking                     split_image   rwi-a-r--- 500.00m                                100.00   split_tracking_rimage_0(0),split_tracking_rimage_1(0),split_tracking_rimage_2(0)                           
  [split_tracking_rimage_0]          split_image   iwi-aor--- 500.00m                                         /dev/sdb3(1)
  [split_tracking_rimage_1]          split_image   iwi-aor--- 500.00m                                         /dev/sdb2(1)
  split_tracking_rimage_2            split_image   mri-a-r--- 500.00m [split_tracking_rimage_2_mlog] 100.00   split_tracking_rimage_2_mimage_0(0),split_tracking_rimage_2_mimage_1(0),split_tracking_rimage_2_mimage_2(0)
  [split_tracking_rimage_2_mimage_0] split_image   iri-aom--- 500.00m                                         /dev/sdb1(1)
  [split_tracking_rimage_2_mimage_1] split_image   iwi-aom--- 500.00m                                         /dev/sdb3(126)
  [split_tracking_rimage_2_mimage_2] split_image   iwi-aom--- 500.00m                                         /dev/sdb2(126)
  [split_tracking_rimage_2_mlog]     split_image   lwi-aom---   4.00m                                         /dev/sda1(0)
  [split_tracking_rmeta_0]           split_image   ewi-aor---   4.00m                                         /dev/sdb3(0)
  [split_tracking_rmeta_1]           split_image   ewi-aor---   4.00m                                         /dev/sdb2(0)
  [split_tracking_rmeta_2]           split_image   ewi-a-r---   4.00m                                         /dev/sdb1(0)

# Now it can't be merge back since it's of type mirror
[root@host-073 ~]# lvconvert --yes --merge split_image/split_tracking_rimage_2
  Command on LV split_image/split_tracking_rimage_2 does not accept LV type mirror.
  Command not permitted on LV split_image/split_tracking_rimage_2.



Version-Release number of selected component (if applicable):
3.10.0-862.el7.x86_64

lvm2-2.02.177-4.el7    BUILT: Fri Feb 16 06:22:31 CST 2018
lvm2-libs-2.02.177-4.el7    BUILT: Fri Feb 16 06:22:31 CST 2018
lvm2-cluster-2.02.177-4.el7    BUILT: Fri Feb 16 06:22:31 CST 2018
cmirror-2.02.177-4.el7    BUILT: Fri Feb 16 06:22:31 CST 2018
device-mapper-1.02.146-4.el7    BUILT: Fri Feb 16 06:22:31 CST 2018
device-mapper-libs-1.02.146-4.el7    BUILT: Fri Feb 16 06:22:31 CST 2018
device-mapper-event-1.02.146-4.el7    BUILT: Fri Feb 16 06:22:31 CST 2018
device-mapper-event-libs-1.02.146-4.el7    BUILT: Fri Feb 16 06:22:31 CST 2018
device-mapper-persistent-data-0.7.3-3.el7    BUILT: Tue Nov 14 05:07:18 CST 2017
Comment 2 Heinz Mauelshagen 2018-07-26 00:08:35 UTC 
lvm upstream commit 8b0729af0fd357e66e95834e92913ea2a42d4e93
to reject conversions on split trackchanges raid1 SubLVs.
Comment 4 Corey Marthaler 2018-08-08 20:20:44 UTC 
Fix verified in the latest rpms.

3.10.0-931.el7.x86_64

lvm2-2.02.180-2.el7    BUILT: Wed Aug  1 11:22:48 CDT 2018
lvm2-libs-2.02.180-2.el7    BUILT: Wed Aug  1 11:22:48 CDT 2018
device-mapper-1.02.149-2.el7    BUILT: Wed Aug  1 11:22:48 CDT 2018
device-mapper-libs-1.02.149-2.el7    BUILT: Wed Aug  1 11:22:48 CDT 2018
device-mapper-event-1.02.149-2.el7    BUILT: Wed Aug  1 11:22:48 CDT 2018
device-mapper-event-libs-1.02.149-2.el7    BUILT: Wed Aug  1 11:22:48 CDT 2018



  split_tracking            split_image   rwi-a-r--- 500.00m                                      100.00           split_tracking_rimage_0(0),split_tracking_rimage_1(0),split_tracking_rimage_2(0)
  [split_tracking_rimage_0] split_image   iwi-aor--- 500.00m                                                       /dev/sdb1(1)                                                                    
  [split_tracking_rimage_1] split_image   iwi-aor--- 500.00m                                                       /dev/sde1(1)                                                                    
  split_tracking_rimage_2   split_image   Iri---r--- 500.00m                                                       /dev/sdd1(1)                                                                    
  [split_tracking_rmeta_0]  split_image   ewi-aor---   4.00m                                                       /dev/sdb1(0)                                                                    
  [split_tracking_rmeta_1]  split_image   ewi-aor---   4.00m                                                       /dev/sde1(0)                                                                    
  [split_tracking_rmeta_2]  split_image   ewi---r---   4.00m                                                       /dev/sdd1(0)                                                                    

[root@host-073 ~]# lvconvert --yes --type mirror -m 1 split_image/split_tracking_rimage_2
  Conversion of tracked raid1 subvolume split_image/split_tracking_rimage_2 is not supported.
[root@host-073 ~]# lvconvert --yes --type raid1 split_image/split_tracking_rimage_2
  Conversion of tracked raid1 subvolume split_image/split_tracking_rimage_2 is not supported.
Comment 6 errata-xmlrpc 2018-10-30 11:02:26 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-2018:3193
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