VIRTUAL MACHINE BACKUP FROM STORAGE SNAPSHOT

摘要

Disclosed herein are system, method, and computer program product embodiments for virtual machine (VM) backup from a storage snapshot. An embodiment operates by receiving selective backup parameters including a VM to backup and then creating a VM snapshot associated with the VM. Next, an offset table associated with a virtual disk of the VM stored on a storage is retrieved. The embodiment further includes generating a storage snapshot and deleting the VM snapshot and then promoting the storage snapshot to a new logical unit number. The promoted storage snapshot is then mounted to the backups server. The virtual disk data is backed up to a backup storage using the offset table from the storage snapshot. The storage snapshot is dismounted from the backup server and deleted from the storage.

主权项

1. A method for a backup server to back up a virtual machine (VM), comprising:
instructing a server to create a software snapshot of the VM; obtaining, from the server, an offset table of data blocks associated with a virtual disk of the VM stored on a storage; instructing the storage to create a hardware snapshot on the storage; promoting the hardware snapshot to a logical unit number (LUN); mounting the promoted hardware snapshot to the backup server; and backing up the data blocks to a backup storage using the offset table and the mounted hardware snapshot.