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Product Version: 9.1

Last Modified: 20 August 2019

Problem

During a physical server backup job, the following error message appears:

This server contains unsupported volumes.
Source data will be read from such volumes directly (without snapshots). This may influence recovery point consistency.

Background

Windows OS

On Windows, NAKIVO Backup & Replication supports basic and dynamic disks with the following volume types:

  • Simple volume: This is a portion of a physical disk that functions like a separate unit. It can consist of a single region on a disk or multiple regions of the same disk that are linked together.
  • Spanned volume: This combines areas of unallocated space from multiple disks into one logical volume.
  • Striped volume (RAID-0): This is created by interleaving data across two or more physical disks. The data on this type of volume is allocated alternately and evenly to each of the physical disks. Striping is also known as RAID-0, which stripes data across multiple disks.
  • Mirrored volume (RAID-1): This is a fault-tolerant volume that provides data redundancy by using two copies of the volume to duplicate the data that is stored on the volume. Mirroring is also known as RAID-1.

Use the Disk Management tool to view and manage your dynamic volumes.

Linux OS

On Linux, NAKIVO Backup & Replication supports only LVM logical volumes of the following types:

  • Linear volume: This is a logical volume made by combining multiple physical volumes to one.
  • Striped volume (RAID-0): In a stripped logical volume, data in the underlying physical volume is stripped across the number of physical disks.  
  • Mirrored (RAID-1)These logical volumes are similar to RAID-1 in which data is mirrored across the number of disks to provide better redundancy for the data.

Use LVM CLI commands to view and manage your LVM logical volumes. 

To know about the supported file systems, refer to the corresponding section of the Supported Platforms article. 

If your physical source server contains other types of dynamic/logical volumes or file systems, the above error message appears when you start a physical server backup job. 

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