Disk Group; Disk Backup (Image) - ACRONIS Backup & Recovery 10 Advanced Server SBS Edition User Manual

operations are configured on the management server (p. 357) and propagated by the server to the
managed machines).
The direct management operations include:
 creating and managing local backup plans (p. 356)
 creating and managing local tasks (p. 356), such as recovery tasks
 creating and managing personal vaults (p. 357) and archives stored there
 viewing the state, progress and properties of the centralized tasks (p. 351) existing on the
machine
 viewing and managing the log of the agent's operations
 disk management operations, such as clone a disk, create volume, convert volume.
A kind of direct management is performed when using bootable media (p. 350). Some of the direct
management operations can also be performed via the management server GUI. This presumes,
however, either an explicit or an implicit direct connection to the selected machine.

Disk backup (Image)

A backup (p. 348) that contains a sector-based copy of a disk or a volume in a packaged form.
Normally, only sectors that contain data are copied. Acronis Backup & Recovery 10 provides an
option to take a raw image, that is, copy all the disk sectors, which enables imaging of unsupported
file systems.

Disk group

A number of dynamic disks (p. 353) that store the common configuration data in their LDM
databases and therefore can be managed as a whole. Normally, all dynamic disks created within the
same machine (p. 356) are members of the same disk group.
As soon as the first dynamic disk is created by the LDM or another disk management tool, the disk
group name can be found in the registry key
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\dmio\Boot Info\Primary Disk
Group\Name.
The next created or imported disks are added to the same disk group. The group exists until at least
one of its members exists. Once the last dynamic disk is disconnected or converted to basic, the
group is discontinued, though its name is kept in the above registry key. In case a dynamic disk is
created or connected again, a disk group with an incremental name is created.
When moved to another machine, a disk group is considered as 'foreign' and cannot be used until
imported into the existing disk group. The import updates the configuration data on both the local
and the foreign disks so that they form a single entity. A foreign group is imported as is (will have the
original name) if no disk group exists on the machine.
For more information about disk groups please refer to the following Microsoft knowledge base
article:
222189 Description of Disk Groups in Windows Disk Management
http://support.microsoft.com/kb/222189/EN-US/
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