Using third-party software has the advantage of a uniform environment. However, the additional cost of the third-party snapshotting software can become higher as your SAN grows.

If you are using third-party backup software, make sure that the software is supported with ESX/ESXi hosts.

If you use snapshots to back up your data, consider the following points:

Some vendors support snapshots for both VMFS and RDMs. If both are supported, you can make either a snapshot of the whole virtual machine file system for a host, or snapshots for the individual virtual machines (one per disk).

Some vendors support snapshots only for a setup using RDM. If only RDM is supported, you can make snapshots of individual virtual machines.

See your storage vendor’s documentation.


ESX/ESXi systems also include a Consolidated Backup component.