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xen-users
RE: [Xen-users] disk image corruption
Sorry. None of the VM images are actually mounted in dom0. Each .img file
contains a LVM setup as configured by the OS installer. Here's what the disk
looks like (physical; then VM).
root@vps [/etc/xen]# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda3 611025584 203800484 376186720 36% /
/dev/sda1 256666 20642 222772 9% /boot
tmpfs 1877400 0 1877400 0% /dev/shm
/usr/tmpDSK 495844 10545 459699 3% /tmp
none 1877312 160 1877152 1% /var/lib/xenstored
root@vps [/etc/xen]# xm list
Name ID Mem(MiB) VCPUs State Time(s)
Domain-0 0 300 4 r----- 29074.3
server1 22 1249 1 -b---- 15.2
root@vps [/etc/xen]# xm console server1
[root@server1-backup proc]# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
150263916 22599896 119907836 16% /
/dev/xvda1 101086 27498 68369 29% /boot
tmpfs 640088 0 640088 0% /dev/shm
Justin Tianen
Classic Services
(414) 771-0827
jtianen@xxxxxxxxxx
> -----Original Message-----
> From: Robert Dunkley [mailto:Robert@xxxxxxxxx]
> Sent: Tuesday, June 02, 2009 10:03 AM
> To: Justin Tianen
> Subject: RE: [Xen-users] disk image corruption
>
> I might be confused here but why are you specifying a filename for the
> disk if the VM has its own LVM partition?
>
> My dedicated LVM partition configs look a bit like this:
> disk = [ 'phy:/dev/lvvolumegroup/lvvolume,hda,w']
>
>
>
> -----Original Message-----
> From: Justin Tianen [mailto:jtianen@xxxxxxxxxx]
> Sent: 02 June 2009 15:58
> To: Robert Dunkley; xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: RE: [Xen-users] disk image corruption
>
> Yes. The dom0 is running as a regular disk without LVM (/dev/sda1 = /).
> All the domU are configured using LVM (default sizes for CentOS/RedHat
> Enterprise/Fedora).
>
> Justin Tianen
> Classic Services
> (414) 771-0827
> jtianen@xxxxxxxxxx
>
>
> > -----Original Message-----
> > From: Robert Dunkley [mailto:Robert@xxxxxxxxx]
> > Sent: Tuesday, June 02, 2009 9:55 AM
> > To: Justin Tianen; xen-users@xxxxxxxxxxxxxxxxxxx
> > Subject: RE: [Xen-users] disk image corruption
> >
> > Do you get the issue when using LVM volumes?
> >
> >
> >
> > From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
> > [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Justin
> > Tianen
> > Sent: 02 June 2009 15:44
> > To: xen-users@xxxxxxxxxxxxxxxxxxx
> > Subject: Re: [Xen-users] disk image corruption
> >
> >
> >
> > I'm going through the logs right now looking for something more
> > specific
> > (however, I don't know the time of day the disk remounts outside of
> > usually during the rsync backup). I've already gone ahead and
> staggered
> > the backup launch times to see if that helps at all. The filesystem
> > mounting issue relates only to those being handled as block devices
> > (sda1) which I'm not doing. Here's what the domU configs all look
> like
> > (differences are the names, uuid, vif mac, and disk image name).
> >
> >
> >
> > name = "server1"
> >
> > uuid = "52fa8774-020d-d66c-d47c-f1b3ecb66417"
> >
> > maxmem = 1250
> >
> > memory = 1250
> >
> > vcpus = 1
> >
> > bootloader = "/usr/bin/pygrub"
> >
> > on_poweroff = "destroy"
> >
> > on_reboot = "restart"
> >
> > on_crash = "restart"
> >
> > vfb = [ ]
> >
> > disk = [ "tap:aio:/vm/ server1.img,xvda,w" ]
> >
> > vif = [ "mac=00:16:3e:12:b6:bf,bridge=xenbr0" ]
> >
> >
> >
> > This is all being ran on a CentOS 5.3 server (and each domU is also
> > CentOS 5.3). All 3 domU were setup via the Python script
> "virt-install"
> > that is included in the CentOS version of Xen.
> >
> >
> > The SAQ Group
> >
> > Registered Office: 18 Chapel Street, Petersfield, Hampshire GU32 3DZ
> > SAQ is the trading name of SEMTEC Limited. Registered in England &
> > Wales
> > Company Number: 06481952
> >
> > http://www.saqnet.co.uk AS29219
> >
> > SAQ Group Delivers high quality, honestly priced communication and
> I.T.
> > services to UK Business.
> >
> > Broadband : Domains : Email : Hosting : CoLo : Servers : Racks :
> > Transit : Backups : Managed Networks : Remote Support.
> >
> > ISPA Member
> >
> > Find us in http://www.thebestof.co.uk/petersfield
> >
> >
> > No virus found in this incoming message.
> > Checked by AVG - www.avg.com
> > Version: 8.5.339 / Virus Database: 270.12.50/2150 - Release Date:
> > 06/02/09 06:47:00
>
> No virus found in this outgoing message.
> Checked by AVG - www.avg.com
> Version: 8.5.339 / Virus Database: 270.12.50/2150 - Release Date:
> 06/02/09 06:47:00
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 8.5.339 / Virus Database: 270.12.50/2150 - Release Date:
> 06/02/09 06:47:00
No virus found in this outgoing message.
Checked by AVG - www.avg.com
Version: 8.5.339 / Virus Database: 270.12.50/2150 - Release Date: 06/02/09
06:47:00
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