Bug 1124414
| Summary: | LVM cache: dmeventd does not work on RAID volumes that are under cache | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Jonathan Earl Brassow <jbrassow> |
| Component: | lvm2 | Assignee: | Petr Rockai <prockai> |
| lvm2 sub component: | Cache Logical Volumes | QA Contact: | Cluster QE <mspqa-list> |
| Status: | CLOSED ERRATA | Docs Contact: | |
| Severity: | unspecified | ||
| Priority: | unspecified | CC: | agk, cmarthal, heinzm, jbrassow, mcsontos, msnitzer, nperic, prajnoha, prockai, zkabelac |
| Version: | 7.1 | ||
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | lvm2-2.02.112-1.el7 | Doc Type: | Bug Fix |
| Doc Text: |
For RAID volumes, dmeventd monitoring would be no longer possible if a persistent cache was created on top of those RAID volumes, preventing automatic repair in case of a disk failure. This has been corrected.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2015-03-05 13:09:27 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: | 1119326 | ||
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Description
Jonathan Earl Brassow
2014-07-29 12:47:03 UTC
Already reported in Bug 1086442. I have relaxed the check on LV name restrictions for both lvconvert --splitmirrors and, relevant here, --repair. The latter is required to operate on any RAID LVs, whether they are part of a bigger aggregate LV or not. As highlighted in this bug, this is especially relevant for dmeventd monitoring. Everything should work now as expected, upstream fix in b66f16fd63014c958d65ab37df4b72f1566176d3. Tested with multiple failures of data meta and cached LV. They were all RAID1 below. [root@tardis-03 ~]# lvs -a -olv_name,devices,sync_percent Couldn't find device with uuid ZXzlVf-FsX7-9IA3-0XOW-j0Zc-XPot-O3xVJV. Couldn't find device with uuid 8XXlJc-bser-qzmy-Nm3q-i6MD-Yx17-T12SFe. Couldn't find device with uuid sqiLxb-EuUH-ydO1-FvRz-l3RE-l9ja-xYKQ0z. LV Devices Cpy%Sync home /dev/sda2(1024) root /dev/sda2(58577) swap /dev/sda2(0) [cache0] cache0_cdata(0) 99.14 [cache0_cdata] cache0_cdata_rimage_0(0),cache0_cdata_rimage_1(0) 100.00 [cache0_cdata_rimage_0] /dev/sdb1(14) [cache0_cdata_rimage_1] /dev/sdf1(1) [cache0_cdata_rmeta_0] /dev/sdb1(13) [cache0_cdata_rmeta_1] /dev/sdf1(0) [cache0_cmeta] cache0_cmeta_rimage_0(0),cache0_cmeta_rimage_1(0) 7.69 [cache0_cmeta_rimage_0] /dev/sdb1(14096) [cache0_cmeta_rimage_1] /dev/sdh1(1) [cache0_cmeta_rmeta_0] /dev/sdb1(14095) [cache0_cmeta_rmeta_1] /dev/sdh1(0) lvol0 lvol0_corig(0) 99.14 [lvol0_corig] lvol0_corig_rimage_0(0),lvol0_corig_rimage_1(0) 16.84 [lvol0_corig_rimage_0] /dev/sdc1(1) [lvol0_corig_rimage_1] /dev/sdb1(1295) [lvol0_corig_rmeta_0] /dev/sdc1(0) [lvol0_corig_rmeta_1] /dev/sdb1(1294) [lvol1_pmspare] /dev/sdb1(0) The missing legs were replaced successfully, the name errors were not encountered. Marking VERIFIED with: kernel-3.10.0-223.el7.x86_64 lvm2-2.02.115-2.el7.x86_64 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-2015-0513.html |