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Bug 1203456

Summary: unable to specifiy a non default --poolmetadatasize when also using an external origin volume
Product: Red Hat Enterprise Linux 6 Reporter: Corey Marthaler <cmarthal>
Component: lvm2Assignee: Zdenek Kabelac <zkabelac>
lvm2 sub component: Thin Provisioning (RHEL6) QA Contact: cluster-qe <cluster-qe>
Status: CLOSED ERRATA Docs Contact:
Severity: low    
Priority: low CC: agk, cluster-qe, cmarthal, heinzm, jbrassow, lvm-team, msnitzer, nperic, prajnoha, prockai, thornber, zkabelac
Version: 6.7   
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: lvm2-2.02.140-1.el6 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: 1191061 Environment:
Last Closed: 2016-05-11 01:16:14 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: 1191061    
Bug Blocks: 1268411    

Comment 1 Corey Marthaler 2015-03-18 21:20:51 UTC 
Hitting this in 6.7 as well.

Making origin volume
lvcreate  --thinpool POOL  --zero n -L 10G --poolmetadatasize 4M snapper_thinp
Sanity checking pool device metadata
(thin_check /dev/mapper/snapper_thinp-POOL_tmeta)
examining superblock
examining devices tree
examining mapping tree
Create LV to be used as an EXTERNAL origin device
lvcreate  -L 1G -n origin snapper_thinp
Converting LV into an external thin origin device
lvconvert --thinpool snapper_thinp/POOL --originname extorigin -T origin --yes
  Can't use "snapper_thinp/origin" as external origin with "snapper_thinp/POOL" pool. Size 1.00 GiB is not a multiple of pool's chunk size 192.00 KiB.


2.6.32-540.el6.x86_64
lvm2-2.02.117-1.el6    BUILT: Wed Mar  4 09:30:04 CST 2015
lvm2-libs-2.02.117-1.el6    BUILT: Wed Mar  4 09:30:04 CST 2015
lvm2-cluster-2.02.117-1.el6    BUILT: Wed Mar  4 09:30:04 CST 2015
udev-147-2.57.el6    BUILT: Thu Jul 24 08:48:47 CDT 2014
device-mapper-1.02.94-1.el6    BUILT: Wed Mar  4 09:30:04 CST 2015
device-mapper-libs-1.02.94-1.el6    BUILT: Wed Mar  4 09:30:04 CST 2015
device-mapper-event-1.02.94-1.el6    BUILT: Wed Mar  4 09:30:04 CST 2015
device-mapper-event-libs-1.02.94-1.el6    BUILT: Wed Mar  4 09:30:04 CST 2015
device-mapper-persistent-data-0.3.2-1.el6    BUILT: Fri Apr  4 08:43:06 CDT 2014
cmirror-2.02.117-1.el6    BUILT: Wed Mar  4 09:30:04 CST 2015
Comment 3 Zdenek Kabelac 2015-03-19 13:37:01 UTC 
Yes - usage of  'external' origin has it's limitations for now.

Can't use "snapper_thinp/origin" as external origin with "snapper_thinp/POOL" pool. Size 1.00 GiB is not a multiple of pool's chunk size 192.00 KiB.


Fixes  dm target should allow to use even such LVs - but that needs still some examination from my side before we enable support of such sizes.
Comment 7 Zdenek Kabelac 2015-12-14 15:57:39 UTC 
Please retest once  6.8 build is available.
Comment 9 Corey Marthaler 2016-02-19 22:38:53 UTC 
These mda size test cases pass in the latest rpms. Marking verified.

[...]
Creating [512.00m] MDA thinpool and corresponding thin virtual volume and thin snapshot
Making pool volume
lvcreate  --thinpool POOL_512.00m -L 500M --profile thin-performance --zero n --poolmetadatasize 512.00m snapper_thinp
[...]


2.6.32-615.el6.x86_64
lvm2-2.02.141-2.el6    BUILT: Wed Feb 10 07:49:03 CST 2016
lvm2-libs-2.02.141-2.el6    BUILT: Wed Feb 10 07:49:03 CST 2016
lvm2-cluster-2.02.141-2.el6    BUILT: Wed Feb 10 07:49:03 CST 2016
udev-147-2.71.el6    BUILT: Wed Feb 10 07:07:17 CST 2016
device-mapper-1.02.115-2.el6    BUILT: Wed Feb 10 07:49:03 CST 2016
device-mapper-libs-1.02.115-2.el6    BUILT: Wed Feb 10 07:49:03 CST 2016
device-mapper-event-1.02.115-2.el6    BUILT: Wed Feb 10 07:49:03 CST 2016
device-mapper-event-libs-1.02.115-2.el6    BUILT: Wed Feb 10 07:49:03 CST 2016
device-mapper-persistent-data-0.6.2-0.1.rc1.el6    BUILT: Wed Feb 10 09:52:15 CST 2016
cmirror-2.02.141-2.el6    BUILT: Wed Feb 10 07:49:03 CST 2016
Comment 11 errata-xmlrpc 2016-05-11 01:16:14 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://rhn.redhat.com/errata/RHBA-2016-0964.html