Bug 806465
| Summary: | RAID1 split mirror fails when any PV but the last one is chosen | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Corey Marthaler <cmarthal> |
| Component: | lvm2 | Assignee: | Jonathan Earl Brassow <jbrassow> |
| Status: | CLOSED ERRATA | QA Contact: | Cluster QE <mspqa-list> |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | 6.3 | CC: | agk, dwysocha, heinzm, jbrassow, mbroz, msnitzer, prajnoha, prockai, slevine, thornber, zkabelac |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | lvm2-2.02.95-5.el6 | Doc Type: | Bug Fix |
| Doc Text: |
New feature in rhel6.3. No release notes necessary.
|
Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2012-06-20 15:03:09 UTC | Type: | --- |
| 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: | 732466 | ||
|
Description
Corey Marthaler
2012-03-23 20:15:42 UTC
I came across this same issue when I was trying to put together an example for the documentation that specified which PV to remove from a RAID volume. This was the volume I started with: [root@doc-04 lvm]# lvs -a -o name,copy_percent,devices vg001 LV Copy% Devices my_lv 100.00 my_lv_rimage_0(0),my_lv_rimage_1(0),my_lv_rimage_2(0) [my_lv_rimage_0] /dev/vda(1) [my_lv_rimage_1] /dev/vdb(1) [my_lv_rimage_2] /dev/vdc(1) [my_lv_rmeta_0] /dev/vda(0) [my_lv_rmeta_1] /dev/vdb(0) [my_lv_rmeta_2] /dev/vdc(0) When I executed the splitmirror command and specified the middle PV, this was the result: [root@doc-04 lvm]# lvconvert --splitmirror 1 -n new vg001/my_lv /dev/vdb device-mapper: rename ioctl on vg001-my_lv_rimage_2 failed: Device or resource busy Failed to rename vg001-my_lv_rimage_2 (253:7) to vg001-my_lv_rimage_1 Failed to resume vg001/my_lv after committing changes libdevmapper exiting with 7 device(s) still suspended. This left the system frozen. It's a virtual system, and it wouldn't shutdown -- I had to destroy it and reboot it. This was the state when I brought things back up: [root@doc-04 ~]# lvs LV VG Attr LSize Pool Origin Data% Move Log Copy% Convert my_lv vg001 rwi-a-m- 100.00m 100.00 my_lv_rmeta_1_extracted vg001 -wi-a--- 4.00m new vg001 -wi-a--- 100.00m lv_root vg_doc04 -wi-ao-- 2.54g lv_swap vg_doc04 -wi-ao-- 1.97g [root@doc-04 ~]# lvs -a -o name,copy_percent,devices vg001 LV Copy% Devices my_lv 100.00 my_lv_rimage_0(0),my_lv_rimage_1(0) [my_lv_rimage_0] /dev/vda(1) [my_lv_rimage_1] /dev/vdc(1) [my_lv_rmeta_0] /dev/vda(0) [my_lv_rmeta_1] /dev/vdc(0) my_lv_rmeta_1_extracted /dev/vdb(0) new /dev/vdb(1) I had to lvremove the volume "new" and the volume "my_lv_rmeta_1_extracted". I'm adding myself to the CC list so I can see updates to this. For the moment I won't be documenting an example of specifyin gwhich PV to remove with a splitmirror command.
Technical note added. If any revisions are required, please edit the "Technical Notes" field
accordingly. All revisions will be proofread by the Engineering Content Services team.
New Contents:
New feature in rhel6.3. No release notes necessary.
Fix verified in the latest rpms.
2.6.32-262.el6.x86_64
lvm2-2.02.95-5.el6 BUILT: Thu Apr 19 10:29:01 CDT 2012
lvm2-libs-2.02.95-5.el6 BUILT: Thu Apr 19 10:29:01 CDT 2012
lvm2-cluster-2.02.95-5.el6 BUILT: Thu Apr 19 10:29:01 CDT 2012
udev-147-2.41.el6 BUILT: Thu Mar 1 13:01:08 CST 2012
device-mapper-1.02.74-5.el6 BUILT: Thu Apr 19 10:29:01 CDT 2012
device-mapper-libs-1.02.74-5.el6 BUILT: Thu Apr 19 10:29:01 CDT 2012
device-mapper-event-1.02.74-5.el6 BUILT: Thu Apr 19 10:29:01 CDT 2012
device-mapper-event-libs-1.02.74-5.el6 BUILT: Thu Apr 19 10:29:01 CDT 2012
cmirror-2.02.95-5.el6 BUILT: Thu Apr 19 10:29:01 CDT 2012
============================================================
Iteration 10 of 10 started at Thu Apr 19 13:59:07 CDT 2012
============================================================
SCENARIO - [sequentially_split_off_all_raid1_pvs]
Create a raid1 with many legs and then sequentially split off each one of the PVs
taft-01: lvcreate --type raid1 -m 4 -n split_pvs_sequentially -L 300M split_image
Waiting until all mirror|raid volumes become fully syncd...
0/1 mirror(s) are fully synced: ( 86.25% )
1/1 mirror(s) are fully synced: ( 100.00% )
splitting off legs:
/dev/sde1 /dev/sdh1 /dev/sdd1 /dev/sdf1
Deactivating mirror new0... and removing
Deactivating mirror new1... and removing
Deactivating mirror new2... and removing
Deactivating mirror new3... and removing
Deactivating mirror split_pvs_sequentially... and removing
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. http://rhn.redhat.com/errata/RHBA-2012-0962.html |