1 backing up logical volumes, Backing up logical volumes – Acronis Backup for Linux Server - User Guide User Manual

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Copyright © Acronis International GmbH, 2002-2014

The swap file (pagefile.sys) and the file that keeps the RAM content when the machine goes
into hibernation (hiberfil.sys). After recovery, the files will be re-created in the appropriate
place with the zero size.

Windows shadow storage. The path to it is determined in the registry value VSS Default
Provider
which can be found in the registry key
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\BackupRestore\FilesNotToBa
ckup
. This means that in operating systems starting with Windows Vista, Windows Restore
Points are not backed up.

Linux

A volume backup stores all files and directories of the selected volume independent of their
attributes, a boot record, and the file system super block.
A disk backup stores all disk volumes as well as the zero track with the master boot record.

With the sector-by-sector (raw mode) option enabled, a disk backup stores all the disk sectors. The
sector-by-sector backup can be used for backing up disks with unrecognized or unsupported file
systems and other proprietary data formats.

3.6 Backup and recovery of logical volumes and MD

devices (Linux)

This section explains how you would back up and recover volumes managed by Linux Logical Volume
Manager (LVM), called logical volumes; and multiple-disk (MD) devices, called Linux Software RAID.

To learn more about LVM please visit http://tldp.org/HOWTO/LVM-HOWTO/ or
http://www.centos.org/docs/5/html/5.1/Deployment_Guide/ch-lvm.html.

3.6.1 Backing up logical volumes

Acronis Backup Agent for Linux can access, back up, and recover logical volumes when running in
Linux starting with 2.6.x kernel or under Linux-based bootable media.

Backup

In Acronis Backup GUI, logical volumes appear under Dynamic volumes at the end of the list of
volumes available for backup. If you select logical volumes for backup, the logical volume structure
will be saved to the backup along with the volume contents. This structure can be automatically
recreated when you recover these volumes under a Linux-based bootable media.

To back up all available disks, specify all logical volumes plus basic volumes not belonging to them.
This is the default choice when you open the Create backup plan page.

Basic volumes included in logical volumes are shown in the list with None in the File system column.
If you select such volumes, the program will back them up sector-by-sector. Normally this is not
required.

Recovery

When recovering logical volumes, you have two options:

Recovering volume contents only. The type or other properties of the target volume will not
change.
This option is available both in the operating system and under bootable media.

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