Bug 1899720
| Summary: | Allow thin-pool to be resized (grown) when cache is on top | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 8 | Reporter: | Jonathan Earl Brassow <jbrassow> |
| Component: | lvm2 | Assignee: | Zdenek Kabelac <zkabelac> |
| lvm2 sub component: | Thin Provisioning | QA Contact: | cluster-qe <cluster-qe> |
| Status: | CLOSED ERRATA | Docs Contact: | |
| Severity: | unspecified | ||
| Priority: | high | CC: | agk, cmackows, cmarthal, heinzm, jbrassow, msnitzer, pasik, prajnoha, teigland, thornber, zkabelac |
| Version: | 8.0 | ||
| Target Milestone: | rc | ||
| Target Release: | 8.0 | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | lvm2-2.03.12-1.el8 | Doc Type: | If docs needed, set a value |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2021-11-09 19:45:20 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: | 1872864 | ||
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Description
Jonathan Earl Brassow
2020-11-19 20:26:41 UTC
Pushed support for resize of dm-cache cached volumes with these upstream patches: https://listman.redhat.com/archives/lvm-devel/2021-February/msg00042.html https://listman.redhat.com/archives/lvm-devel/2021-February/msg00043.html https://listman.redhat.com/archives/lvm-devel/2021-February/msg00045.html tested various resize cases: https://listman.redhat.com/archives/lvm-devel/2021-February/msg00046.html Supports not just resize of _tdata but all other supported cached LVs. (--type cache) This also solves the problem for resize of cached thin-pools reported in bug 1876811. Should this bug include extending thin pool data when the data uses either cache or writecache, both of which lvm will now extend (bug 1160044)? Or should writecache on thin pool data be handled and tested as a separate RFE? Separate RFE would be preferred here as well. Created bug 1957898 for extending thin pool data using writecache, so this bug is only for extending thin pool data with cache. Fix verified in the latest rpms. All cached stack thin pool stack extension scenarios have been finally turned on in 8.5. kernel-4.18.0-310.el8 BUILT: Thu May 27 14:24:00 CDT 2021 lvm2-2.03.12-2.el8 BUILT: Tue Jun 1 06:55:37 CDT 2021 lvm2-libs-2.03.12-2.el8 BUILT: Tue Jun 1 06:55:37 CDT 2021 [root@hayes-02 ~]# lvcreate --yes --profile thin-performance --zero y -L 4M -n meta snapper_thinp /dev/sdb Logical volume "meta" created. [root@hayes-02 ~]# lvcreate --yes --profile thin-performance --zero y -L 1G -n POOL snapper_thinp /dev/sdb Logical volume "POOL" created. [root@hayes-02 ~]# lvcreate --yes --zero y -L 400M -n cpool snapper_thinp /dev/sdc Logical volume "cpool" created. [root@hayes-02 ~]# lvcreate --yes --zero y -L 8M -n cpool_meta snapper_thinp /dev/sdc Logical volume "cpool_meta" created. [root@hayes-02 ~]# lvconvert --yes --type cache-pool --poolmetadata snapper_thinp/cpool_meta snapper_thinp/cpool WARNING: Converting snapper_thinp/cpool and snapper_thinp/cpool_meta to cache pool's data and metadata volumes with metadata wiping. THIS WILL DESTROY CONTENT OF LOGICAL VOLUME (filesystem etc.) Converted snapper_thinp/cpool and snapper_thinp/cpool_meta to cache pool. [root@hayes-02 ~]# lvs -a -o +devices LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert Devices POOL snapper_thinp -wi-a----- 1.00g /dev/sdb(1) cpool snapper_thinp Cwi---C--- 400.00m cpool_cdata(0) [cpool_cdata] snapper_thinp Cwi------- 400.00m /dev/sdc(0) [cpool_cmeta] snapper_thinp ewi------- 8.00m /dev/sdc(100) [lvol0_pmspare] snapper_thinp ewi------- 8.00m /dev/sdb(257) meta snapper_thinp -wi-a----- 4.00m /dev/sdb(0) [root@hayes-02 ~]# lvconvert --yes --type cache --cachepool snapper_thinp/cpool snapper_thinp/POOL Logical volume snapper_thinp/POOL is now cached. [root@hayes-02 ~]# lvconvert --zero y --thinpool snapper_thinp/POOL --poolmetadata meta --yes Thin pool volume with chunk size 64.00 KiB can address at most <15.88 TiB of data. 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.) Converted snapper_thinp/POOL and snapper_thinp/meta to thin pool. [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 [cpool_cpool] [POOL_tdata_corig] 0.12 1.46 0.00 POOL_tdata_corig(0) [POOL_tdata_corig] snapper_thinp owi-aoC--- 1.00g /dev/sdb(1) [POOL_tmeta] snapper_thinp ewi-ao---- 4.00m /dev/sdb(0) [cpool_cpool] snapper_thinp Cwi---C--- 400.00m 0.12 1.46 0.00 cpool_cpool_cdata(0) [cpool_cpool_cdata] snapper_thinp Cwi-ao---- 400.00m /dev/sdc(0) [cpool_cpool_cmeta] snapper_thinp ewi-ao---- 8.00m /dev/sdc(100) [lvol0_pmspare] snapper_thinp ewi------- 8.00m /dev/sdb(257) [root@hayes-02 ~]# lvextend -L +1G snapper_thinp/POOL_tdata Size of logical volume snapper_thinp/POOL_tdata_corig changed from 1.00 GiB (256 extents) to 2.00 GiB (512 extents). Logical volume snapper_thinp/POOL successfully resized. 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 |