Hi Venkatesh, I assume your hypervisor is XenServer.
There is a global parameter called “snapshot.delta.max”, which allows us to take N incremental snapshots between two full snapshots. It seems, the number of snapshots has crossed that value, so it has taken a full back-up again. If you increase that value to a higher number, you can prevent it for long run but I don’t think you can prevent it completely. Anshul/Sateesh, Correct me if I am wrong. Thanks, Nitin On 08-Oct-2017, at 9:46 AM, kotipalli venkatesh <venkateshcloudt...@gmail.com<mailto:venkateshcloudt...@gmail.com>> wrote: Hi All, Our CloudStack current environment is daily running recurring snapshots enabled. Suddenly last night all VM's fully backed up ( not incremental backups happen). May I know the reason why all VM's are full backups. And also how to prevent the issue. Thanks, Venkatesh DISCLAIMER ========== This e-mail may contain privileged and confidential information which is the property of Accelerite, a Persistent Systems business. It is intended only for the use of the individual or entity to which it is addressed. If you are not the intended recipient, you are not authorized to read, retain, copy, print, distribute or use this message. If you have received this communication in error, please notify the sender and delete all copies of this message. Accelerite, a Persistent Systems business does not accept any liability for virus infected mails.