Thanks for the nice info but i am not using Software RAID at all. not in Proxmox Box nor in NAS. but yes, i am using 100mbps LAN card in my NAS and Proxmox is 1gb.<br><br>Thank you,<br><br><br><div class="gmail_quote">On Wed, Sep 7, 2011 at 11:00 PM, <span dir="ltr"><<a href="mailto:proxmox@uap.edu.ar">proxmox@uap.edu.ar</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">Hi,<br>
I had this problem 3 times, and it happened to me when using software raid, and only at the exact moments that i was running a virtual machine backup and the software raid was doing a consistency-check (first sunday of every month by default)<br>
<br>
It seems that a very loaded harddisk with softraid had some kind of issue...<br>
I resolved those issues doing the same things Dietmar suggested !<br>
<br>
And after that, you have 2 options: a hardware raid controller, or not doing VM backup at the same time the softraid is checking consistency...<br>
<br>
Hope it helps...<br>
<br>
- Tito<br>
<br>
<br>
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From: Muhammad Yousuf Khan <<a href="mailto:sirtcp@gmail.com">sirtcp@gmail.com</a>><br>
To: Dietmar Maurer <<a href="mailto:dietmar@proxmox.com">dietmar@proxmox.com</a>><br>
Cc: "<a href="mailto:pve-user@pve.proxmox.com">pve-user@pve.proxmox.com</a>" <<a href="mailto:pve-user@pve.proxmox.com">pve-user@pve.proxmox.com</a>><br>
Subject: Re: [PVE-User] Backup issue<br>
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Hi Dietmar,<br>
<br>
Thank you for the response, actually i was going to ask about this error in<br>
next thread but i am glad that you have raised it in this message trail :),<br>
can you please tell me what is this basically means?. i know very little<br>
about this error that it has some sort of relation with LVM. can you tell me<br>
more about this and the easiest way to resolve this dm-2 error. however<br>
every thing is working find right now.<br>
<br>
| Kill the vzdump process (and run 'qm unlock <vmid>'), then test if that<br>
bug is reproducible.<br>
<br>
after killing the vzdump process it shows "unable to read config for VM 109"<br>
,but i already killed that process last night and have completed the new<br>
backup of said VM 109 and it was successful this time.<br>
<br>
<br>
Thanks<br>
<br>
On Tue, Sep 6, 2011 at 4:44 PM, Dietmar Maurer <<a href="mailto:dietmar@proxmox.com">dietmar@proxmox.com</a>> wrote:<br>
<br>
> > No error message can be seen in VZDUMP log.<br>
> ><br>
> >Aug 30 04:41:57 INFO: /dev/dm-2: read failed after 0 of 4096 at 0:<br>
><br>
> This looks like an error to me.<br>
><br>
> > can any one tell me why the process is stuck. and what is the solution.<br>
><br>
> Kill the vzdump process (and run 'qm unlock <vmid>'), then test if that bug<br>
> is reproducible.<br>
><br>
> - Dietmar<br>
><br>
><br>
<br>
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