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Working from a remote terminal, Backing up software and hardware raid arrays, Backing up to tape drive – Acronis True Image 9.1 Server for Linux - User Guide User Manual

Page 15: Orking from a remote terminal, Acking up software and hardware, Raid, Arrays, Acking up to tape drive

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General information and proprietary Acronis technologies

Copyright © Acronis, Inc., 2000-2006

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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 Server for Linux GUI with the trueimage

command or use trueimagecmd command line tool.

3.7

Backing up software and hardware RAID arrays

Acronis True Image Server 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 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 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 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.

3.8

Backing up to tape drive

Acronis True Image Server for Linux supports SCSI tape drives. It can store backups on the

tape and restore data from the tape, store large backups to multiple tapes, and append

incremental/differential changes to a tape with the existing archives.

If a SCSI tape drive is connected to the server, the list of devices available for backup
storage will be extended with a name corresponding to the drive type.