Re: [libvirt-users] add disk problems for domain
On 11/21/2012 04:09 AM, zhijun liu wrote:
hi,all
I use Java api `domain.attachDeviceFlags(xml, 0);` to add a disk for
domain. the xml file like this:
<disk type='file' device='disk'>
<driver name='qemu' type='raw'/>
<source file='/dev/sp1353486595267/v1353488096262'/>
<target dev='vdb' bus='virtio'/>
</disk>
then I use command `virsh detach-disk $domain vdb` to remove the disk.
what I said above have no any errors.but the problem is when I restart
this vm ,the disk still exist,because I see it from the command `virsh
dumpxml $domain` ,how to remove the disk from this domain persistently.
Use the flags argument. By passing '0' (aka VIR_DOMAIN_AFFECT_CURRENT
in the C API counterpart), you are explicitly requesting that only the
current configuration be modified (for a running domain, that means you
are doing a one-time hotplug, but not to remember it for the next boot).
If you want to simultaneously hotplug _and_ affect the next boot, you
need to instead pass whatever the Java binding is for the underlying
flags VIR_DOMAIN_AFFECT_LIVE|VIR_DOMAIN_AFFECT_CONFIG of the C API
(sorry, I don't know the Java binding well enough to know what that
binding is).
--
Eric Blake eblake(a)redhat.com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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