[Xen-users] Re: 1TB disk size limit?

[Alexander Ivanov <apivanov@xxxxxxxxx>]

Correction to my previous post.

Actually it seems the problem is related to GPLPV drivers only - I managed to format all free 1.5TB of the disk on a VM running without GPLPV drivers and 'attach' it to a server with gplpv_2003x64_0.10.0.138.msi installed.

That works but I'm kinda worried with running it all in production. Do you guys really use xen-gplpv for virtualizing Windows servers? QEMU performance is pretty much makes it not an option for high load services.

Thanks

Alex 

On Wed, Dec 9, 2009 at 9:55 AM, Alexander Ivanov <apivanov@xxxxxxxxx> wrote:

Hello everybody,

after few weeks of trials I'm in final stage of rolling a new server into our production environment and just came across this problem. Basically I'm getting 'bad block' messages in Windows 2003 when trying to format a new disk in Windows VM. 

I'm running CentOS 5.4 with xen3.4.2 installed, tried both with GPLPV and standard qemu drivers, windows x32 and x64 - same result, as soon as newly added virt disk size goes beyond 1024G (or above 262144 extents) I get bad block error in windows system log and formatting fails. The server is DellR710 machine with 146G raid1 SAS (for VMs systems) and 1.8T RAID5(6x500G Near-line SAS disks with 1 hotswap) for backups. Needless to say formatting in Linux of the whole 1.8T vd goes fine (with full e2fsck check then).

Any ideas? Is my only option to split it in 2 virt disks?

Thank you,

Alex

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