ACRONIS TRUE IMAGE ECHO - FOR LINUX User's Guide download pdf (Page 16)

3.6 Working from a remote terminal

You can control the image creation or restoration process remotely from any computer in

the local network or Internet, operating under Windows, Mac OS or any UNIX clone.

To act as a remote terminal, this computer must have X Server software installed. Start

the X Server and log on to the server using SSH-enabled software. For example, Putty is

one of the most popular Windows programs of that type.

Then you can invoke Acronis True Image Echo Server GUI with the trueimage command

or use the trueimagecmd command line tool.

3.7 Backing up software and hardware RAID arrays

Acronis True Image Echo Server supports software and hardware RAID arrays as if these

were simple single hard drives. However, as such arrays have a structure different from

typical hard disks, there are peculiarities affecting the way data is stored.

Software RAID arrays under Linux OS combine several hard disks partitions and make

solid block devices (/dev/md0, ... /dev/md31), information of which is stored in

/etc/raidtab or in dedicated areas of that partitions. Acronis True Image Echo Server

enables you to create images of active (mounted) software arrays similar to typical hard

disk images.

Partitions that are part of software arrays are listed alongside other available partitions as

if they had a corrupted file system or without a file system at all. There’s no sense in

creating images of such partitions when a software array is mounted, as it won’t be

possible to restore them.

Parameters of software disk arrays are not stored in images, so they can only be restored

to a normal partition, or unallocated space, or previously configured array.

Operating from a rescue CD, Acronis True Image Echo Server tries to access parameters

of a software disk array and configure it. However, if the necessary information is lost,

the array cannot be configured automatically. In this case, create a software array

manually and restart the restoration procedure.

Hardware RAID arrays under Linux combine several physical drives to create a single

partitionable disk (block device). The special file related to a hardware disk array is

usually located in /dev/ataraid. Acronis True Image Echo Server enables you to create

images of hardware disk arrays similar to images of typical disks and partitions.

Physical drives that are part of hardware disk arrays are listed alongside other available

drives as if they had a bad partition table or no partition table at all. There’s no sense in

creating images of such drives, as it won’t be possible to restore them.

3.8 Support for LVM volumes

When running in Linux environment with 2.6.x kernel, Acronis True Image Echo Server

supports disks, managed by Logical Volume Manager (LVM). You can back up data of one

or more LVM volumes and restore it to a previously created LVM volume or MBR disk

(partition), likewise it is also possible to restore MBR volume data to an LVM volume. In

each case, the program stores and restores volume contents only. The type or other

properties of the target volume will not be changed.

In rescue mode (when booted with bootable rescue media or using F11) Acronis True

Image Echo Server cannot access LVM disks. This means that:

- an LVM volume image can be deployed on a MBR disk only

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