Bug 1964622
| Summary: | unable to remove writecache converted thinpool volume | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 8 | Reporter: | Corey Marthaler <cmarthal> |
| Component: | lvm2 | Assignee: | David Teigland <teigland> |
| lvm2 sub component: | Cache Logical Volumes | QA Contact: | cluster-qe <cluster-qe> |
| Status: | CLOSED ERRATA | Docs Contact: | |
| Severity: | medium | ||
| Priority: | medium | CC: | agk, heinzm, jbrassow, mcsontos, msnitzer, prajnoha, zkabelac |
| Version: | 8.5 | Keywords: | Triaged |
| Target Milestone: | beta | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | lvm2-2.03.12-3.el8 | Doc Type: | If docs needed, set a value |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2021-11-09 19:45:54 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: | |||
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Description
Corey Marthaler
2021-05-25 19:12:03 UTC
this was included in the bz mentioned above, this was the relevant part for this bz: fix to allow removing a thin pool that has writecache on the data LV: https://sourceware.org/git/?p=lvm2.git;a=commit;h=4a746f7ffcc8e61c9cb5ce9f9e8a061d1ef6b28e Marking Verified:Tested in that latest rpms. kernel-4.18.0-310.el8 BUILT: Thu May 27 14:24:00 CDT 2021 lvm2-2.03.12-3.el8 BUILT: Tue Jun 15 11:37:17 CDT 2021 lvm2-libs-2.03.12-3.el8 BUILT: Tue Jun 15 11:37:17 CDT 2021 [root@hayes-02 ~]# lvcreate --yes --thinpool POOL -L 1G --profile thin-performance --zero y --poolmetadatasize 4M snapper_thinp Thin pool volume with chunk size 64.00 KiB can address at most <15.88 TiB of data. Logical volume "POOL" created. [root@hayes-02 ~]# lvcreate --yes -L 1G -n wcpool snapper_thinp /dev/sdc1 Logical volume "wcpool" created. [root@hayes-02 ~]# lvchange -an snapper_thinp/wcpool [root@hayes-02 ~]# lvconvert --yes --type writecache --cachevol snapper_thinp/wcpool snapper_thinp/POOL Using writecache block size 512 for unknown file system block size, logical block size 512, physical block size 4096. Logical volume snapper_thinp/POOL now has writecache. [root@hayes-02 ~]# lvs -a -o +devices LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert Devices POOL snapper_thinp twi-a-tz-- 1.00g 0.00 10.94 POOL_tdata(0) [POOL_tdata] snapper_thinp Cwi-aoC--- 1.00g [wcpool_cvol] [POOL_tdata_wcorig] 0.00 POOL_tdata_wcorig(0) [POOL_tdata_wcorig] snapper_thinp owi-aoC--- 1.00g /dev/sde1(1) [POOL_tmeta] snapper_thinp ewi-ao---- 4.00m /dev/sdo1(0) [lvol0_pmspare] snapper_thinp ewi------- 4.00m /dev/sde1(0) [wcpool_cvol] snapper_thinp Cwi-aoC--- 1.00g /dev/sdc1(0) [root@hayes-02 ~]# lvremove -f snapper_thinp Logical volume "POOL" successfully removed. Fixed in the latest lvm build. Marking verified. kernel-4.18.0-314.el8 BUILT: Tue Jun 15 11:04:32 CDT 2021 lvm2-2.03.12-4.el8 BUILT: Tue Jun 22 03:35:27 CDT 2021 lvm2-libs-2.03.12-4.el8 BUILT: Tue Jun 22 03:35:27 CDT 2021 SCENARIO - [display_thin_snap] Create a snapshot and then display it a couple ways Making pool volume lvcreate --yes --zero y -L 4M -n meta snapper_thinp /dev/sdc1 /dev/sde1 lvcreate --yes --zero y -L 1G -n POOL snapper_thinp /dev/sdc1 /dev/sde1 lvcreate --yes -L 400M -n wcpool snapper_thinp /dev/sdd1 lvchange -an snapper_thinp/wcpool Converting *writecached* volume to thin pool data device lvconvert --yes --type writecache --cachevol snapper_thinp/wcpool snapper_thinp/POOL Create thin pool volume by combining the cached thin data and meta volumes lvconvert --zero y --thinpool snapper_thinp/POOL --poolmetadata meta --yes WARNING: Converting snapper_thinp/POOL and snapper_thinp/meta to thin pool's data and metadata volumes with metadata wiping. THIS WILL DESTROY CONTENT OF LOGICAL VOLUME (filesystem etc.) Making origin volume lvcreate --yes --virtualsize 1G -T snapper_thinp/POOL -n origin lvcreate --yes -V 1G -T snapper_thinp/POOL -n other1 WARNING: Sum of all thin volume sizes (2.00 GiB) exceeds the size of thin pool snapper_thinp/POOL (1.00 GiB). lvcreate --yes -V 1G -T snapper_thinp/POOL -n other2 WARNING: Sum of all thin volume sizes (3.00 GiB) exceeds the size of thin pool snapper_thinp/POOL (1.00 GiB). lvcreate --yes --virtualsize 1G -T snapper_thinp/POOL -n other3 WARNING: Sum of all thin volume sizes (4.00 GiB) exceeds the size of thin pool snapper_thinp/POOL (1.00 GiB). lvcreate --yes --virtualsize 1G -T snapper_thinp/POOL -n other4 WARNING: Sum of all thin volume sizes (5.00 GiB) exceeds the size of thin pool snapper_thinp/POOL (1.00 GiB). lvcreate --yes --virtualsize 1G -T snapper_thinp/POOL -n other5 WARNING: Sum of all thin volume sizes (6.00 GiB) exceeds the size of thin pool snapper_thinp/POOL (1.00 GiB). Making snapshot of origin volume lvcreate --yes -y -k n -s /dev/snapper_thinp/origin -n display_snap Display snapshot using lvdisplay Display snapshot using lvs Display snapshot using lvscan Removing snap volume snapper_thinp/display_snap lvremove -f /dev/snapper_thinp/display_snap Removing thin origin and other virtual thin volumes Removing pool snapper_thinp/POOL 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 (lvm2 bug fix and enhancement update), 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-2021:4431 |