Bug 1946478

Summary:	[GSS][ceph-volume]"ceph-volume lvm batch" shows "% of device" as 0% for DB device
Product:	[Red Hat Storage] Red Hat Ceph Storage	Reporter:	Janmejay Singh <jansingh>
Component:	Ceph-Volume	Assignee:	Andrew Schoen <aschoen>
Status:	CLOSED ERRATA	QA Contact:	Rahul Lepakshi <rlepaksh>
Severity:	medium	Docs Contact:	Ranjini M N <rmandyam>
Priority:	unspecified
Version:	4.2	CC:	agunn, aschoen, ceph-eng-bugs, ceph-qe-bugs, gmeno, gsitlani, kdreyer, mmuench, pdhange, rlepaksh, rmandyam, sunnagar, vereddy
Target Milestone:	---
Target Release:	5.1
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:	ceph-16.2.6-1.el8cp ceph-16.2.6-1.el7cp	Doc Type:	Bug Fix
Doc Text:	.The `ceph-volume lvm batch --report` now displays the correct value of `% of device` parameter Previously, users would not get correct information on the amount of space available on the device for `--db-devices` as `ceph-volume` would incorrectly calculate the `% of device` value for the DB devices when running the `ceph-volume lvm batch --report` command. With this release, the `ceph-volume lvm batch --report` command correctly shows the space that is used on each device given in `--db-devices`.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-04-04 10:20:36 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:	2031073

Description Janmejay Singh 2021-04-06 08:35:13 UTC

Description of problem:
Creating OSD with "ceph-volume lvm batch" show "% of device" as 0% for DB device if that device is already serving as DB for other OSD's.


Version-Release number of selected component (if applicable):
RHCS 4.2

How reproducible:
1: Create an non-collocated OSD.
#ceph-volume lvm batch --bluestore  /dev/sda /dev/nvme0n1
2: Now create another OSD using same DB device to utilize remaining space on DB device.
#ceph-volume lvm batch --bluestore  /dev/vdc /dev/nvme0n1
3: If we use DB '--deb-devices' flag at this point, it ignores the DB device completely and create a collocated OSD.
  #ceph-volume lvm batch --bluestore  /dev/vdc --db-devices /dev/nvme0n1 --report

Comment 18 Ken Dreyer (Red Hat) 2021-10-05 21:40:11 UTC

https://tracker.ceph.com/issues/51107 is resolved in v14.2.22 upstream, and we've rebased to that version, so I'm moving this to ON_QA.

Comment 19 Ken Dreyer (Red Hat) 2021-10-05 21:44:26 UTC

(Er, that previous comment was for RHCS 4.3). For RHCS 5.1:

https://tracker.ceph.com/issues/51108 is resolved in v16.2.5 upstream, and we've rebased ceph-5.1-rhel-patches to v16.2.6, so I'm moving this to ON_QA.

Comment 27 errata-xmlrpc 2022-04-04 10:20:36 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 (Moderate: Red Hat Ceph Storage 5.1 Security, Enhancement, and Bug Fix 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/RHSA-2022:1174