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Re: [Xen-users] hotplug of block devices in domU?

from [Markus Hochholdinger]

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Subject:	Re: [Xen-users] hotplug of block devices in domU?
From:	Markus Hochholdinger <Markus@xxxxxxxxxxxxxxxxx>
Date:	Sat, 25 Mar 2006 18:53:25 +0100
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hi,

Am Dienstag, 21. März 2006 20:03 schrieb Markus Hochholdinger:
> is it possible to hotplug a block device to a domU, or the reverse, to
> unplug a block device from a domU? Or isn't it possible to change device
> configurations while a domU is running? I've found nothing about this in
> the docs.

to answer my question myself:
xm block-list <DomId>
xm block-detach <DomId> <DevId>
xm block-attach <DomId> <BackDev> <FrontDev> <Mode> [BackDomId]
(found in <src>/docs/man/xm.pod.1 , seems the docs aren't installed correctly)

The same for network-list, network-detach and network-attach.

Short help appears when invoked with "xm block-attach" and so on.

block-detach only works if the deivce is not in use by <DomId>.

xenstore-rm backend/vbd/? works also if the block device is in use by <DomId>, 
but it's difficult to reattach such a removed block device.


-- 
greetings

eMHa

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