Working From A Rescue Cd; Working From A Remote Terminal; Backing Up Software And Hardware Raid Arrays - ACRONIS TRUE IMAGE SERVER 8.0-LINUX User Manual

3.2

Working from a rescue CD

In some situations (e.g. when restoring a system partition, or disk cloning or addition), you
might have to work with Acronis True Image Server 8.0 for Linux without loading the OS. In
those cases, you can use the Acronis rescue CD. It is highly recommended that you create it
from an ISO-image, located in /var/lib/Acronis/TrueImage/rescue.iso.
3.3

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 Server 8.0 for Linux GUI with the trueimage
command or use trueimagecmd command line tool.
3.4

Backing up software and hardware RAID arrays

Acronis True Image Server 8.0 for Linux 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 Server 8.0 for Linux 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 Server 8.0 for Linux 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 Server 8.0 for Linux 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.
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