Bug 812306

Summary:	Vblade export to bridge, no etherdrive seen in virtual
Product:	[Fedora] Fedora	Reporter:	Louis Mulder <louis.mulder>
Component:	vblade	Assignee:	Patrick Laughton <jima>
Status:	CLOSED WONTFIX	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	16	CC:	jima, louis.mulder
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2013-02-13 15:03:07 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 Louis Mulder 2012-04-13 10:46:33 UTC

Description of problem:

Version-Release number of selected component (if applicable):
vblade-14-7.fc15.x86_64

How reproducible:

If you export a etherdrive to a bridge with a vnet to a kvm virtual machine, the virtual will not see the drive. It is dicovered during a setup where local disks of 2 machines are mirrored with MD-devices by using etherdrives within the guest. After some investigation I found out when you do the same on the Ubuntu platform it works. Ubuntu is using the vblade version of Coraid so I downloaded the source and compiled it on Fedora and RH 6.2 EL and the problem was gone. Please update the rpm with the latest vblade sources. Also worthful is to take a look at the aoe-drivers off Coraid and upgrade also aoe-tools to a higher version. Be aware the scripts of Coraid has some minor bugs in it because some of the files/devices are placed in other directories outside /dev/etherd/... and are not adjusted in the scripts such as aoe-discover.

Steps to Reproduce:

1. Create a LVM volume or disk-image and export this with vblade to a bridge used also by a KVM virtual. You can also use a ISO image to export. KVM virtual must run on the same host where the export takes place.
2. Modprobe or activate the aoe driver in the virtual, the drive is not appearing.
3. Download the source code of Coraid and compiled it. Stop the original vblade with a kill and use the newly build vblade to export the LVM volume/disk-image.
Perform a aoe-stat in the virtual and it will be seen if not try a aoe-discover and repeat aoe-stat.

Actual results:

Expected results:

Additional info:

If this is available for virtuals you can hide on host-level the storage luns by using MAC-masking. Using separate networkcards without any IP traffic on it can enhance security for virtual DMZ servers, using AoE has lesser overhead then for example NFS/iSCSI. Using Intel servers with a storage bay will be more valuable to use because it will deliver a cheap way to do live-migrates between the hosts. It is also very easy to setup so it would be also nice to include AoE within the Anaconda installer or Kickstart in the near future.

Regards Louis

Comment 1 Fedora End Of Life 2013-01-16 14:04:36 UTC

This message is a reminder that Fedora 16 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
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Comment 2 Fedora End Of Life 2013-02-13 15:03:10 UTC

Fedora 16 changed to end-of-life (EOL) status on 2013-02-12. Fedora 16 is 
no longer maintained, which means that it will not receive any further 
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of 
Fedora please feel free to reopen this bug against that version.

Thank you for reporting this bug and we are sorry it could not be fixed.