Granular restore for VMware / Hyper-V - Ahsay Backup
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Granular Restore for VMware / Hyper-V

Granular Restore is a new feature introduced in v7.13 for restoring individual files within a backed up guest VM image without the need to restore or spin-up the VM first. It is particularly useful if one only needs to restore a few individual file(s) from a large guest VM which would normally a long time to restore and then startup before you can gain access the files on the virtual disks. Granular restore gives you a fast and convenient way to recover individual files on a guest VM.

How it works

During the granular restore process, the virtual disks of the guest VM will be mounted using a special file system driver on a 64 bit Windows machine where the AhsayOBM client agent is installed. Without having to restore the entire virtual machine, You are able to browse, select and restore individual files or folders through either:

Note: Granular restore can only mount virtual disks if the guest VM is running on a Windows platform. The mounting of Linux /Unix file systems from virtual disk file is currently not available due to limitations of the file system drivers. It is supported for all backup destinations, i.e. AhsayCBS, Cloud storage, or Local/Network drives.

Benefits over traditional restore

Granular Restore Traditional Restore
  • Offers swift access and recovery of essential files without the need to restore entire Guest VM during daily operations, thus minimizing recovery time
  • Allows both file and Guest VM level restore from a single pass backup operation
  • Reduces the number of client access license, backup time, storage space and management effort with only one backup set
  • Takes much longer restore time for a large Guest VM before user can access any of the data urgently needed
  • Cannot satisfy tight Recovery Time Objectives (RTO) to retrieve mission-critical files due to human errors, intentional deletion or system failure, thus increasing downtime
  • Requires additional client access license, backup time, storage resources and management effort with two backup sets – one for the Guest VM, the other for the selected files

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