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RE: [Xen-users] GPLPV-drivers: size limit in "hard disk drivers" forvolu

To: Björn Schneider <bjoern.schneider@xxxxxxxxxxxxxxx>
Subject: RE: [Xen-users] GPLPV-drivers: size limit in "hard disk drivers" forvolumes?
From: "James Harper" <james.harper@xxxxxxxxxxxxxxxx>
Date: Wed, 26 Nov 2008 09:53:50 +1100
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Thread-topic: [Xen-users] GPLPV-drivers: size limit in "hard disk drivers" forvolumes?
> Hi,
> I'm using the "Xen PV Drivers 0.9.12-pre4.exe" package on Windows 2008
> Server SP1 32bit. The Dom0 is Ubuntu 8.04LTS amd64 with Ubuntu's kernel
> 2.6.24-21-xen and Xen 3.2.1-rc1-pre.
> I've reduced the size down to a few sectors less than 1 Terabyte, and
> now it works (couldn't pin it down exactly to the sector limit, as LVM2
> uses 'LE units' which contain several sectors).
> working size:       2147475456 sectors (1099507433472 bytes)
> inoperative size:   2147483648    "    (1099511627776 bytes)
> Interestingly, between 1 Terabyte and 2 Terabyte, the virtual disk shows
> up, but without valid data. If you try to initialize the disk, Windows
> returns the error that the disk would be write protected. If it's just
> one "LE" below full 2 Terabyte, it says "unsupported operation" instead.
> Hope that helps somehow...

Yes, I think that explains the problem just nicely. I'll see what I can do, but 
it probably won't be for another week or so.



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