>>Out of interest, can I find information on the bug that has been fixed?
Well, the main problem that we rely only on the progress of the copy, then at 100% we switch disk. But this is wrong, because it's possible to have pending writes, so we need to check another qemu flag. Here the commit: https://git.proxmox.com/?p=qemu-server.git;a=blobdiff;f=PVE/QemuServer.pm;h=85ce28ad29e3c2d3746a80c50fd5b3ca0f92bbd2;hp=a79606cdd953aee789a968fd6de7c00feaa6f155;hb=ab6ecffe53a1d045dc03d2f9cf56037a8a2a9b2a;hpb=5fe03fd8eebb0fcc8a70d89f3810535fb2d42ec9 ----- Mail original ----- De: "Chris Murray" <[email protected]> À: "Alexandre DERUMIER" <[email protected]> Cc: [email protected] Envoyé: Mardi 18 Novembre 2014 10:10:55 Objet: RE: [PVE-User] NTFS/Windows Server corruption after successful livestorage migration Hi Alexandre, I do, apologies, I use the term 'storage migration' because of my past familiarity with another vendor :-) I'll work toward making the problem reproducible first if possible and will then try, thank you. Out of interest, can I find information on the bug that has been fixed? I notice a mention of the same file in the thread "Online storage migration not working (II)". As I understand Eneko's problem, migrations were failing? Rather than mine where they appear to succeed but (possibly) yield corruption. Thanks again for the assistance, and for a great product! -----Original Message----- From: Alexandre DERUMIER [mailto:[email protected]] Sent: 14 November 2014 14:04 To: Chris Murray Cc: [email protected] Subject: Re: [PVE-User] NTFS/Windows Server corruption after successful livestorage migration Hi, do you talk about "move disk" feature of proxmox ? If yes, please test http://download.proxmox.com/debian/dists/wheezy/pvetest/binary-amd64/qemu-server_3.3-3_amd64.deb We have fixed a bug with storage migration ----- Mail original ----- De: "Chris Murray" <[email protected]> À: [email protected] Envoyé: Jeudi 13 Novembre 2014 18:13:40 Objet: Re: [PVE-User] NTFS/Windows Server corruption after successful livestorage migration Is it possible that a developer could comment on the mechanics of the online migration algorithm so that I know where to troubleshoot next? I did create a rudimentary test in Debian which would write alternate patterns of data while I migrated VMs back and forth. Between each pattern it will test the file to verify that it contains everything it should. This all seems to work fine and the problem isn’t reproducible. Could the problem be OS-specific? I’m not a developer but I would guess that the migration algorithm would be lower-level than this? Is it possible that the corruption could affect Windows machines while they’re under load and while they’re being migrated? It seems like it’s a factor of those three things. I don’t think it’s purely load as they do receive much higher load when e.g. at 03:00 all Windows virtual machines are subject to new updates. This doesn’t cause a problem; it only seems to be if I move a disk while it’s busy. Everything will tick along fine and the moment I have another corrupt VM I ask myself “what happened last?” and the answer is “I moved it” or “I changed file type”. Any ideas? Thanks, Chris From: pve-user [mailto:[email protected]] On Behalf Of Chris Murray Sent: 05 November 2014 22:34 To: Yannis Milios; [email protected] Subject: Re: [PVE-User] NTFS/Windows Server corruption after successful livestorage migration Hi Yannis, I can try that, but what is it expected that either result will prove? If the VM is corrupt, what will that prove? What is the likely cause of the problem? If the VM is not corrupt, what will that prove? Thanks, Chris From: Yannis Milios [ mailto:[email protected] ] Sent: 05 November 2014 20:44 To: [email protected] ; Chris Murray Subject: Re: [PVE-User] NTFS/Windows Server corruption after successful live storage migration hello, Never tried online storage migration but what happens if you do the following: 1. create a windows vm in raw format, on local disk storage(not nfs mount). 2. Start installing updates on windows and initiate online storage migration to the nfs mount in qcow2 format. Do you experience the same issue? referance: https://pve.proxmox.com/wiki/Storage_Migration No virus found in this message. Checked by AVG - www.avg.com Version: 2015.0.5315 / Virus Database: 4189/8510 - Release Date: 11/04/14 No virus found in this message. Checked by AVG - www.avg.com Version: 2015.0.5315 / Virus Database: 4189/8510 - Release Date: 11/04/14 _______________________________________________ pve-user mailing list [email protected] http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user ----- No virus found in this message. Checked by AVG - www.avg.com Version: 2015.0.5557 / Virus Database: 4213/8565 - Release Date: 11/13/14 _______________________________________________ pve-user mailing list [email protected] http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
