Bug 1399142 – [RFE] Change disk default interface to virtio-scsi

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Bug 1399142 - [RFE] Change disk default interface to virtio-scsi

Summary:	[RFE] Change disk default interface to virtio-scsi

Status:	CLOSED CURRENTRELEASE

Aliases:	None

Product:	ovirt-engine
Classification:	oVirt
Component:	Backend.Core (Show other bugs)
Sub Component:
Version:	4.0.4
Hardware:	Unspecified Unspecified

Priority	medium Severity medium (vote)
Target Milestone:	ovirt-4.1.0-alpha
Target Release:	4.1.0.2
Assigned To:	Martin Betak
QA Contact:	Shira Maximov
Docs Contact:

URL:
Whiteboard:
Keywords:	FutureFeature

Depends On:
Blocks:
	Show dependency tree / graph

Reported:	2016-11-28 07:04 EST by Michal Skrivanek
Modified:	2017-02-06 03:11 EST (History)
CC List:	4 users (show)

See Also:
Fixed In Version:
Doc Type:	Enhancement
Doc Text:	This release changes the default disk interface type from virtio-blk to virtio-scsi. virtio-blk is still supported, but users are encouraged to use the more modern virtio-scsi. When creating or attaching a disk to a virtual machine, the virtio-scsi interface type will now be selected by default.
Story Points:	---
Clone Of:
Environment:
Last Closed:	2017-02-01 09:46:19 EST
Type:	Bug
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	Virt
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Flags:	michal.skrivanek: ovirt‑4.1? mshira: testing_plan_complete+ michal.skrivanek: planning_ack? michal.skrivanek: devel_ack+ rule-engine: testing_ack+

Attachments	(Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
oVirt gerrit	67460	master	MERGED	core: Change default disk interface to virtio-scsi	2016-11-29 08:36 EST
oVirt gerrit	67527	master	MERGED	frontend: Make VirtioScsiUtil respect Blank tmpl setting	2016-11-30 11:33 EST
oVirt gerrit	67534	master	MERGED	core: Enable virtio-scsi by default	2016-11-30 11:33 EST

Groups: None (edit)

Description Michal Skrivanek 2016-11-28 07:04:51 EST

For years we support virtio-scsi in parallel to the older virtio-blk interface. SCSI is now more mature, has more features, negligent performance penalty in the worst case, and is stable enough to become the preselected default.

We still want to support both, but virtio-scsi is already a better choice, let's help uninformed users to use the right one. 

Should be enough to modify Blank template and Add Disk dialog

Comment 1 Sandro Bonazzola 2016-12-12 08:53:51 EST

The fix for this issue should be included in oVirt 4.1.0 beta 1 released on December 1st. If not included please move back to modified.

Comment 2 Shira Maximov 2017-01-12 07:37:48 EST

verified on :
Version 4.1.0-0.3.beta2.el7

verification steps are specified in polarion test plan :
https://polarion.engineering.redhat.com/polarion/#/project/RHEVM3/wiki/Compute/4_1_VIRT_virtio-scsi_default_interface

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