Bug 1780625

Summary:	local-storage-operator does not support LVM devices
Product:	OpenShift Container Platform	Reporter:	Jason Kincl <kincljc>
Component:	Storage	Assignee:	Hemant Kumar <hekumar>
Status:	CLOSED ERRATA	QA Contact:	Liang Xia <lxia>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	4.2.z	CC:	aos-bugs, jsafrane, lxia, nagrawal
Target Milestone:	---
Target Release:	4.4.0
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:
Clones:	1781869 (view as bug list)		Environment:
Last Closed:	2020-05-04 11:19:04 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:	1783863
Bug Blocks:	1781869, 1781871

Description Jason Kincl 2019-12-06 14:45:04 UTC

Description of problem:

Specifying a device path like /dev/disk/by-id/dm-name-vg1-lvol0 does not work and the local storage cannot be used.

Also: https://github.com/openshift/local-storage-operator/issues/57

How reproducible:

always

Steps to Reproduce:

apiVersion: local.storage.openshift.io/v1
kind: LocalVolume
metadata:
  name: lvm-local-storage
  namespace: local-storage
spec:
  nodeSelector:
    nodeSelectorTerms:
    - matchExpressions:
        - key: region
          operator: In
          values:
          - local-storage-node
  storageClassDevices:
    - storageClassName: cadence-local
      volumeMode: Filesystem
      fsType: ext4
      devicePaths:
        - /dev/disk/by-id/dm-name-vg-vg0-lvol0

Actual results:

diskmaker cannot find any disks

Expected results:

diskmaker finds the LVM disk correctly

Comment 6 Liang Xia 2019-12-19 06:26:37 UTC

Verified with local-storage-operator.4.4.0-201912170523 on 4.4.0-0.nightly-2019-12-18-064553


$ oc get sc,pv
NAME                                             PROVISIONER                    AGE
storageclass.storage.k8s.io/local-sc             kubernetes.io/no-provisioner   5m41s
storageclass.storage.k8s.io/standard (default)   kubernetes.io/cinder           3h28m

NAME                                 CAPACITY   ACCESS MODES   RECLAIM POLICY   STATUS      CLAIM   STORAGECLASS   REASON   AGE
persistentvolume/local-pv-104b75f1   1Gi        RWO            Delete           Available           local-sc                5m20s



sh-4.4# lvdisplay 
  --- Logical volume ---
  LV Path                /dev/myvg01/mylv01
  LV Name                mylv01
  VG Name                myvg01
  LV UUID                mvT0Ww-eOaz-i0Dm-4ZZo-HoPu-3EHB-dVUxpV
  LV Write Access        read/write
  LV Creation host, time lxia19-48fdq-worker-dsf5s, 2019-12-19 06:15:56 +0000
  LV Status              available
  # open                 0
  LV Size                1.00 GiB
  Current LE             256
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:1

Comment 8 errata-xmlrpc 2020-05-04 11:19:04 UTC

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-2020:0581