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A Method for quick bring up of the virtual machine on a recovery site in cloud environments Disclosure Number: IPCOM000249217D
Publication Date: 2017-Feb-10
Document File: 3 page(s) / 124K

Publishing Venue

The Prior Art Database


This Article describes about a method to bring up a Virtual Machine in a quicker fashion, in a disaster recovery scenario. The article talks about grouping of the boot disks and data disks at the storage level, and provide steps for the applications on the Virtual Machine to boot up using boot disk group, while dynamically managing data disk group.

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A Method for quick bring up of the virtual machine on a recovery site in cloud environments

In the disaster recovery environment, virtual machines would be recovered from a primary site to a backup site. The virtual machines along with the storages should also be configured to work in sync, so that once the virtual machine is recovered on the backup site, the OS should be able to boot-up with the data that is replicated from the primary site storage.

To maintain storage replication across sites, all the disks associated with the virtual machines of the site can be grouped under single disk group(can vary with the type of storage). The recovery process firstly, would include storage path reversal and enabling consistency on the backup site, before bringing up the virtual machine on the backup site.

This disclosure explains a quick method to bring up the virtual machine on the backup site.

The core feature of this solution is to bring down the recovery time of the virtual machine. In the general scenario of recovery, the major time that take to recover the virtual machine is enabling consistency on the backup storage. The storage consistency enablement increases with the number of disks and the size of disks.

This method would create two different disk groups one with the boot disks(root VG) of the Virtual Machines and the other with the remaining data disks. While recovering the Virtual Machine, the boot disks group will be first reversed and followed by the Virtual Machines are recovered. Since the boot disk would be available the Virtual Machines would be able to bootup and run the OS. The other disk group(data disks) would be reversed in parallel, while the Virtual Machines are booting up.

In the traditional disaster recovery solutions, all the disks at the storage level will be grouped as described in the below figure 1.

Figure 1.


With this method the disk grouping will be as in the below figure 2.

Figure 2

In traditional disaster recovery(figure 1), in-order to bring up...