More frequent snapshots are then possible, with fewer gaps between known good recovery points. Backups can then be taken directly from the SAN where the storage snapshot resides without disturbing the application VM. On the other hand, a storage snapshot can rapidly capture the point-in-time state of the VM from a momentary VM snapshot that only lasts seconds, and normal application behavior can quickly resume. The undesirable consequences discourage organizations from taking more frequent snapshots, which makes them more vulnerable. This sluggishness results from the extra system overhead incurred when maintaining point-in-time image for the duration of the backup- an I/O intensive process that could take several minutes or hours. The longer the hypervisor is required to keep a VM Snapshot active, the bigger its negative impact on the VM’s performance. vmsn file which stores the memory state of the VM, allows reverting to a running state of a VM vmsd database file which holds the snapshot information -delta.vmdk file which contains the difference between the current state of the virtual disk and the state that existed when the previous snapshot was taken.vmdk flat file which contains the raw data in the disk This is helpful when restoring data during disaster recovery or even just backing up different states of the VM and its data for analytics and testing.Ī VMware VM snapshot is comprised of 4 things: What is the difference between a VM snapshot and a storage snapshot?Ī VM snapshot is a point-in-time copy of the virtual machine, which allows rolling back to a previous known state of the VM. To make the backing up of VM snapshots faster and simpler, Veeam has developed the Universal Storage API, which is a plug-in specification that allows storage vendors to integrate with Veeam Backup & Replication to create storage snapshots and then back them up more efficiently. Veeam is a popular solution used by thousands of IT organizations to backup virtual machine (VM) snapshots in VMware environments. IT organizations are moving from legacy backup and replication systems to more modern and sophisticated solutions, such as Veeam, to benefit from intelligent data management features that allow IT teams to achieve greater flexibility and increased ROI. In environments where there is a mixed breed of storage hardware powering virtualized application workloads, ensuring fast and seamless backup is particularly challenging. This is only possible when the data protection and management solution is highly reliable, efficient, secure, and flexible to support the business requirements and evolving infrastructure in the organization. The objective of a data backup, replication and disaster recovery solution is to restore business services with near-zero RTO. And this strategy includes considering the right tools and processes for backup and recovery. Every datacenter management team strategizes and institutes a robust backup and disaster recovery plan to meet contingencies that cause downtime and data loss and disrupt business continuity. Data protection is top-of-mind for organizations in today’s ever-evolving technology landscape.
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