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[Xen-users] Re: increase size for dom guest using lvm online

"James Harper" <james.harper@xxxxxxxxxxxxxxxx> writes:

>> could we increase the size for dom guest online without rebooting or
>> unmounting?
>> pls kindly advise any methods.
> For a PV DomU (or a HVM DomU using PV drivers), there is no mechanism
> for the backend (Dom0) to notify the frontend (DomU) of a change in
> device size. I suspect that HVM DomU's have the same problems.
> So no, it cannot be done without rebooting.

Unless you resort to double attach and replacing device-mapper
tables.  Possible in principle, but be very careful suspending your
root device...  Good luck!

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