Bug 1850714

Summary:	Azure UPI disk size for control plane is not inline with IPI
Product:	OpenShift Container Platform	Reporter:	Fabiano Franz <ffranz>
Component:	Installer	Assignee:	Fabiano Franz <ffranz>
Installer sub component:	openshift-installer	QA Contact:	Johnny Liu <jialiu>
Status:	CLOSED ERRATA	Docs Contact:
Severity:	high
Priority:	unspecified	CC:	adahiya, jialiu, wking
Version:	4.6
Target Milestone:	---
Target Release:	4.6.0
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:
Clones:	1851676 (view as bug list)		Environment:
Last Closed:	2020-10-27 16:09:42 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:	1851676, 1855079

Description Fabiano Franz 2020-06-24 19:20:25 UTC

Description of problem:

The disk size for Azure UPI[1] is not inline with IPI[2], likely resulting in not enough IOPS performance for etcd in UPI installations using the default values.

Expected results:

UPI and IPI must use the same defaults.

Additional info:

[1] https://github.com/openshift/installer/blob/2fa75fa52111009d2fd40d5a33b9cc01f037d501/upi/azure/05_masters.json#L259
[2] https://github.com/openshift/installer/blob/2fa75fa52111009d2fd40d5a33b9cc01f037d501/pkg/asset/machines/master.go#L249

Comment 4 Johnny Liu 2020-06-28 05:40:44 UTC

Verified this bug with latest ARM templates, and works.

After installation, check master OSDisk size, it is showing on Azure portal:
Disk Configuration: 1024 GiB (Premium SSD)"

Comment 5 W. Trevor King 2020-07-09 00:43:37 UTC

What is the migration plan for existing clusters?  Is this something where folks will get an alert or other notification that etcd is suffering (or whatever) that points them to a doc chain that eventually says "you may want to try growing your control-plane disks with $PROCEDURE"?

Comment 6 Fabiano Franz 2020-07-10 20:49:38 UTC

This is UPI, the set of ARM templates we provide are just examples, a starting point for customers to write their own[1]. So I don't think this is the case for a migration plan, but I'm asking Abhinav to confirm.

[1] https://docs.openshift.com/container-platform/4.4/installing/installing_azure/installing-azure-user-infra.html

Comment 8 errata-xmlrpc 2020-10-27 16:09:42 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 (OpenShift Container Platform 4.6 GA Images), 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-2020:4196

Comment 9 Red Hat Bugzilla 2023-09-14 06:02:50 UTC

The needinfo request[s] on this closed bug have been removed as they have been unresolved for 1000 days