Bug 1394048
Summary: | LVM RAID: Ability to reduce the size of a RAID LV | ||
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Product: | Red Hat Enterprise Linux 7 | Reporter: | Jonathan Earl Brassow <jbrassow> |
Component: | lvm2 | Assignee: | Heinz Mauelshagen <heinzm> |
lvm2 sub component: | Mirroring and RAID | QA Contact: | cluster-qe <cluster-qe> |
Status: | CLOSED ERRATA | Docs Contact: | Steven J. Levine <slevine> |
Severity: | unspecified | ||
Priority: | unspecified | CC: | agk, cmarthal, heinzm, jbrassow, msnitzer, prajnoha, prockai, rbednar, slevine, zkabelac |
Version: | 7.2 | Keywords: | FutureFeature |
Target Milestone: | rc | ||
Target Release: | --- | ||
Hardware: | Unspecified | ||
OS: | Unspecified | ||
Whiteboard: | |||
Fixed In Version: | lvm2-2.02.169-1.el7 | Doc Type: | Enhancement |
Doc Text: |
LVM supports reducing the size of a RAID logical volume
As of Red Hat Enterprise Linux 7,4, you can use the "lvreduce" or "lvresize" command to reduce the size of a RAID logical volume.
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Story Points: | --- |
Clone Of: | Environment: | ||
Last Closed: | 2017-08-01 21:49:49 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: | 1385242, 1394039, 1411727 |
Description
Jonathan Earl Brassow
2016-11-10 21:54:18 UTC
Prepared for review/integration as lvresize/lvreduce functionality on lvm2 upstream branch dev-lvmguy-raid-takeover-reshape-resize_work Upstream commit 55eaabd1183042b8e03b3a969eadf624623c4b62 Verified with latest rpms, ability to reduce size of raid has been added. Tested with raid0, raid1, raid4, raid5, raid6 and raid10. # lvs LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert root rhel_virt-145 -wi-ao---- 6.70g swap rhel_virt-145 -wi-ao---- 876.00m raid0 vg rwi-a-r--- 1.00g raid1 vg rwi-a-r--- 1.00g 100.00 raid10 vg rwi-a-r--- 1.00g 100.00 raid4 vg rwi-a-r--- 1.00g 100.00 raid5 vg rwi-a-r--- 1.00g 100.00 raid6 vg rwi-a-r--- 1.01g 100.00 # for i in raid0 raid1 raid4 raid5 raid6 raid10; do lvreduce -L500M vg/$i --force;done WARNING: Reducing active logical volume to 500.00 MiB. THIS MAY DESTROY YOUR DATA (filesystem etc.) Size of logical volume vg/raid0 changed from 1.00 GiB (256 extents) to 500.00 MiB (125 extents). Logical volume vg/raid0 successfully resized. WARNING: Reducing active logical volume to 500.00 MiB. THIS MAY DESTROY YOUR DATA (filesystem etc.) Size of logical volume vg/raid1 changed from 1.00 GiB (256 extents) to 500.00 MiB (125 extents). Logical volume vg/raid1 successfully resized. WARNING: Reducing active logical volume to 500.00 MiB. THIS MAY DESTROY YOUR DATA (filesystem etc.) Size of logical volume vg/raid4 changed from 1.00 GiB (256 extents) to 500.00 MiB (125 extents). Logical volume vg/raid4 successfully resized. WARNING: Reducing active logical volume to 500.00 MiB. THIS MAY DESTROY YOUR DATA (filesystem etc.) Size of logical volume vg/raid5 changed from 1.00 GiB (256 extents) to 500.00 MiB (125 extents). Logical volume vg/raid5 successfully resized. WARNING: Reducing active logical volume to 500.00 MiB. THIS MAY DESTROY YOUR DATA (filesystem etc.) Size of logical volume vg/raid6 changed from 1.00 GiB (256 extents) to 500.00 MiB (125 extents). Logical volume vg/raid6 successfully resized. WARNING: Reducing active logical volume to 500.00 MiB. THIS MAY DESTROY YOUR DATA (filesystem etc.) Size of logical volume vg/raid10 changed from 1.00 GiB (256 extents) to 500.00 MiB (125 extents). Logical volume vg/raid10 successfully resized. # lvs LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert root rhel_virt-145 -wi-ao---- 6.70g swap rhel_virt-145 -wi-ao---- 876.00m raid0 vg rwi-a-r--- 504.00m raid1 vg rwi-a-r--- 500.00m 100.00 raid10 vg rwi-a-r--- 504.00m 100.00 raid4 vg rwi-a-r--- 504.00m 100.00 raid5 vg rwi-a-r--- 504.00m 100.00 raid6 vg rwi-a-r--- 504.00m 100.00 3.10.0-640.el7.x86_64 lvm2-2.02.169-3.el7 BUILT: Wed Mar 29 16:17:46 CEST 2017 lvm2-libs-2.02.169-3.el7 BUILT: Wed Mar 29 16:17:46 CEST 2017 lvm2-cluster-2.02.169-3.el7 BUILT: Wed Mar 29 16:17:46 CEST 2017 device-mapper-1.02.138-3.el7 BUILT: Wed Mar 29 16:17:46 CEST 2017 device-mapper-libs-1.02.138-3.el7 BUILT: Wed Mar 29 16:17:46 CEST 2017 device-mapper-event-1.02.138-3.el7 BUILT: Wed Mar 29 16:17:46 CEST 2017 device-mapper-event-libs-1.02.138-3.el7 BUILT: Wed Mar 29 16:17:46 CEST 2017 device-mapper-persistent-data-0.7.0-0.1.rc6.el7 BUILT: Mon Mar 27 17:15:46 CEST 2017 cmirror-2.02.169-3.el7 BUILT: Wed Mar 29 16:17:46 CEST 2017 jbrassow: As per our IRC discussion, I have marked this BZ for inclusion in the 7.4 release notes and I have written up a description. Can you check that over to be sure it's correct? Steven (In reply to Steven J. Levine from comment #10) > jbrassow: > > As per our IRC discussion, I have marked this BZ for inclusion in the 7.4 > release notes and I have written up a description. Can you check that over > to be sure it's correct? > > Steven yes, looks fine. A user can reduce the size of a RAID LV with 'lvreduce' or 'lvresize'. I added lvresize to the description for the release notes. 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-2017:2222 |