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Bug 1750244

Summary: [doc] steps for manual upgrade from RHCS 2 to RHCS 3 are missing installation steps for ceph-mgr
Product: [Red Hat Storage] Red Hat Ceph Storage Reporter: Tomas Petr <tpetr>
Component: DocumentationAssignee: Bara Ancincova <bancinco>
Status: CLOSED CURRENTRELEASE QA Contact: Ameena Suhani S H <amsyedha>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 3.3CC: amsyedha, kdreyer
Target Milestone: z1   
Target Release: 3.3   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
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Clone Of: Environment:
Last Closed: 2019-10-23 11:04:06 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: 1743515    

Description Tomas Petr 2019-09-09 07:00:05 UTC 
Description of problem:
RHCS 3 introduces ceph-mgr daemon, but installation guide section "Appendix H. Manually Upgrading from Red Hat Ceph Storage 2 to 3" does not mention that change at all:
https://access.redhat.com/documentation/en-us/red_hat_ceph_storage/3/html-single/installation_guide_for_red_hat_enterprise_linux/index#manually-upgrading-from-red-hat-ceph-storage-2-to-3

That ends up with cluster in unhealthy state.

after upgrade of ceph-mon  should be added link to ceph-mgr installation section:
Appendix D. Manually installing Ceph Manager
https://access.redhat.com/documentation/en-us/red_hat_ceph_storage/3/html-single/installation_guide_for_red_hat_enterprise_linux/index#manually-installing-ceph-manager-install

The same should be mentioned after installing ceph-mon in:
Appendix B. Manually Installing Red Hat Ceph Storage
https://access.redhat.com/documentation/en-us/red_hat_ceph_storage/3/html-single/installation_guide_for_red_hat_enterprise_linux/index#manually-installing-red-hat-ceph-storage

because ceph-osds needs to communicate with ceph-mgr, so we want to install ceph-mgr before installation/upgrade ceph-osds
1. install/upgrade ceph-mon
2. install ceph-mgr
3. install/upgrade ceph-osd

Version-Release number of selected component (if applicable):
RHCS 3

How reproducible:


Steps to Reproduce:
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Actual results:


Expected results:


Additional info:
Comment 3 Bara Ancincova 2019-10-23 11:04:06 UTC 
The guide has been updated on the Customer Portal: 

https://access.redhat.com/documentation/en-us/red_hat_ceph_storage/3/html-single/installation_guide_for_red_hat_enterprise_linux/index#manually-upgrading-from-red-hat-ceph-storage-2-to-3 

https://access.redhat.com/documentation/en-us/red_hat_ceph_storage/3/html-single/installation_guide_for_red_hat_enterprise_linux/index#manually-installing-red-hat-ceph-storage