User`s guide

 Always create a snapshot

The snapshot enables backing up of all files including files opened for exclusive access. The files

will be backed up at the same point in time. Choose this setting only if these factors are critical,

that is, backing up files without a snapshot does not make sense. To use a snapshot, the backup

plan has to run under the account with the Administrator or Backup Operator privileges. If a

snapshot cannot be taken, the backup will fail.

 Create a snapshot if it is possible

Back up files directly if taking a snapshot is not possible.

 Do not create a snapshot

Always back up files directly. Administrator or Backup Operator privileges are not required.

Trying to back up files that are opened for exclusive access will result in a read error. Files in the

backup may be not time-consistent.

3.3.1.6 Compression level

This option is effective for Windows and Linux operating systems and bootable media.

The option defines the level of compression applied to the data being backed up.

The preset is: Normal.

The optimal data compression level depends on the type of data being backed up. For example, even

maximum compression will not significantly reduce the archive size if the archive contains essentially

compressed files, such as .jpg, .pdf or .mp3. However, formats such as .doc or .xls will be compressed

well.

To specify the compression level

Select one of the following:

 None – the data will be copied as is, without any compression. The resulting backup size will be

maximal.

 Normal – recommended in most cases.

 High – the resulting backup size will typically be less than for the Normal level.

 Maximum – the data will be compressed as much as possible. The backup duration will be

maximal. You may want to select maximum compression when backing up to removable media

to reduce the number of blank disks required.

3.3.1.7 Backup performance

Use this group of options to specify the amount of network and system resources to allocate to the

backup process.

Backup performance options might have a more or less noticeable effect on the speed of the backup

process. This depends on the overall system configuration and the physical characteristics of devices

the backup is being performed from or to.

Backup priority

This option is effective for both Windows and Linux operating systems.

The priority of a process running in a system determines the amount of CPU and system resources

allocated to that process. Decreasing the backup priority will free more resources for other

applications. Increasing the backup priority might speed up the backup process by requesting the