[root@nodo1:~] esxcli storage vmfs snapshot list

59aec5fa-f1922cb0-98a9-0cc47a352258
Volume Name: Jovian_allvm
VMFS UUID: 59aec5fa-f1922cb0-98a9-0cc47a352258
Can mount: false
Reason for un-mountability: the original volume is still online
Can resignature: true
Reason for non-resignaturability:
Unresolved Extent Count: 1

[root@nodo1:~] esxcli storage vmfs snapshot resignature -u 59aec5fa-f1922cb0-98a9-0cc47a352258

Tags: datastore, ESXi, JovianDSS, resignature, snapshot, storage, VMWARE