Bug 1564467

Summary:	[Doc] - RHEL Installation guide - information on configuring lvm based OSD needs to be added
Product:	[Red Hat Storage] Red Hat Ceph Storage	Reporter:	Vasishta <vashastr>
Component:	Documentation	Assignee:	Aron Gunn <agunn>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Vasishta <vashastr>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	3.0	CC:	agunn, asriram, hnallurv, kdreyer
Target Milestone:	z2
Target Release:	3.0
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-08-26 06:55:23 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:

Description Vasishta 2018-04-06 11:16:32 UTC

Description of problem:

As ceph-ansible supports configuring OSDs using lvms, we need to provide information in "Table 3.2. OSD Ansible Settings" of step 5.ii in installation guide of RHEL.

Following section from osds.yml can be referred -

# III. Use ceph-volume to create OSDs from logical volumes.
# Use 'osd_scenario: lvm' to enable this scenario. Currently we only support dedicated journals
# when using lvm, not collocated journals.
# lvm_volumes is a list of dictionaries. Each dictionary must contain a data, journal and vg_name
# key. Any logical volume or logical group used must be a name and not a path.
# data must be a logical volume
# journal can be either a lv, device or partition. You can not use the same journal for many data lvs.
# data_vg must be the volume group name of the data lv
# journal_vg is optional and must be the volume group name of the journal lv, if applicable
# For example:
# lvm_volumes:
#   - data: data-lv1
#     data_vg: vg1
#     journal: journal-lv1
#     journal_vg: vg2
#   - data: data-lv2
#     journal: /dev/sda
#     data_vg: vg1
#   - data: data-lv3
#     journal: /dev/sdb1
#     data_vg: vg2

Comment 4 Vasishta 2018-04-13 07:33:51 UTC

Hi Aron,

Doc looks good.

Can you please add a Note under the step 5.ii (or 5.b)saying -

"Currently ceph-ansible doesn't create LV, user must create LVs"

Regards,
Vasishta Shatsry
AQE, Ceph

Comment 6 Vasishta 2018-04-16 06:06:50 UTC

Hi Aron,

Thanks for the changes.

Moving BZ to VERIFIED state.

Regards,
Vasishta Shastry
AQE, Ceph