how to update back-end storage online

yj x xingyongji at
Tue Nov 19 01:06:50 UTC 2019

    I want to implement a qemu block driver which like qeme/block/iscsi.c.
Here are my questions:
    some targets have be attached to guest system, and then the targets info
have changed. How can I update the connection to targets online? I mean
the disk in guest system does not change, just update the connection to the
back-end storage, and the operation can't affect guest system. I can't find
nova-api or libvirt-api to meet my needs now.

    Does anyone help me?

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