# Resync one DB from hosts

**URL:** <https://forum.opennebula.io/t/resync-one-db-from-hosts/8771>\
**Category:** Installation & Configuration\
**Created:** [August 31, 2020, 10:53am UTC](https://forum.opennebula.io/t/resync-one-db-from-hosts/8771 "2020-08-31T10:53:17Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Denis](https://avatars.discourse-cdn.com/v4/letter/d/5e9695/32.png) [@Denis](https://forum.opennebula.io/u/Denis)\
**Post date:** [August 31, 2020, 10:53am UTC](https://forum.opennebula.io/t/resync-one-db-from-hosts/8771/1 "2020-08-31T10:53:17Z")

</div>

Hello,

Sometime with our opennebula, we have some issue when we try to add a disk or live migrate a VM. The disk is sucessfully added in the VM, but not seen by opennebula (and not in ON database), or when we migrate, the migration is stuck on migrate on ON and migration is fail on the host.

Is there a way to resync the data in the ON database, by rescanning informations on the hosts ?

Thanks,  
Denis