[PVE-User] Syslog and Backup

Martin Maurer martin at proxmox.com
Tue Nov 11 09:13:19 CET 2008


> Subject: Re: [PVE-User] Syslog and Backup
> Hello,
> For my test of your ProxMox, I have a stress with this error :
> Nov 10 13:40:41 max2 kernel: ioctl32(mount:9380): Unknown cmd fd(3)
> cmd(80041272){t:12;sz:4} arg(bf9881d0) on /
> Nov 10 13:42:41 max2 kernel: Buffer I/O error on device sr0, logical
> block 7
> Nov 10 13:42:41 max2 kernel: sr 0:0:0:0: [sr0] Device not ready: Sense
> Key : Not Ready [current]
> What do you think about this ?

[Martin Maurer] 
Based on the logs below you have issues with the cdrom assigned to your guests. Check if you have the right cd-rom and ISO for your configured KVM VM´s.

> So, I'd like to set up a backup "Delta Block In File" file vzdump (tgz).
> I advise you to compress or leave without compression. The idea is to
> make a backup inside the file to limit the use of bandwidth ...

[Martin Maurer] 
Vzdump can compress the backup, just tick this on the GUI. Vzdump cannot do differential or incremental backups, it will always do a full backup.

Best Regards,

Martin Maurer

martin at proxmox.com

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