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Re: [Xen-users] Is XVD live resize possible?

To: "Jayson Vantuyl" <jvantuyl@xxxxxxxxxxxxxx>
Subject: Re: [Xen-users] Is XVD live resize possible?
From: "Florian Heigl" <florian.heigl@xxxxxxxxx>
Date: Mon, 7 Apr 2008 18:56:07 +0200
Cc: Andy Smith <andy@xxxxxxxxxxxxxx>, xen-users@xxxxxxxxxxxxxxxxxxx
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2008/4/7, Jayson Vantuyl <jvantuyl@xxxxxxxxxxxxxx>:
> I think the developers have kind of let this one go.
> Once upon a time, in addition to block-detach and block-attach there was
> also block-configure.  Block-configure supposedly told the inner DomU to
> refresh its idea of the block device.  It stopped working a while back, a
> few people complained, it was never fixed.
> I haven't tested it, but this would be the "right way" to do it...if it
> worked.

that was highly enlightening...

block-reconfigure would have allowed to reliably resize storage
without shutting down domUs (yes, yes, with pvresize or other rescans
and of course a capable filesystem, but lets stick to the root issue).
I used to concatenate filesystem images using dd skip=xx but never
found a way to notify the domU of a successful change. add in the
fact, that large numbers of [ phy:... or, even worse file: ] disk
definitions tend to be unreliable and it would be REALLY great to get
the feature back.

maybe we can start a little rally to make someone from -devel aware
this is a NEEDED feature?


'Sie brauchen sich um Ihre Zukunft keine Gedanken zu machen'

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