the snapshot name and domain are similar, but not same. Sorry to make you confuse.
domain name: snap_rhel_vnx
snapshot name: snap1-rhel_vnx
Finally i find the root casue, which is the snapshot name
<domainsnapshot>
<name>snap1-rhel_vnx </name>
<description>base snapshot when os install </description>
</domainsnapshot>
there is the blank at end of snapshot name, so the snapshot name is "snap1-rhel_vnx " not "snap1-rhel_vnx"
the revert process success when i change to "snap1-rhel_vnx ".
the snapshot name and domain are similar, but not same. Sorry to make you confuse.
domain name: snap_rhel_vnx
snapshot name: snap1-rhel_vnx
Finally i find the root casue, which is the snapshot name
<domainsnapshot> snap1-rhel_ vnx </name> n>base snapshot when os install </description>
<name>
<descriptio
</domainsnapshot>
there is the blank at end of snapshot name, so the snapshot name is "snap1-rhel_vnx " not "snap1-rhel_vnx"
the revert process success when i change to "snap1-rhel_vnx ".